Current weather · Sep 29, 2:37 PM EDT

41.1440, -74.5380

67°

Mostly CloudyFeels like 67° · Humidity 73%NWS forecast for this hour; no recent station reportForecast by NWS Philadelphia/Mt Holly · grid 63,136
High
69°
Low
54°
Rain today
0%
Sunrise
6:53 AM
Sunset
6:43 PM

Hour by hour

NWS forecast grid

Scroll sideways for more hours. Pick an hour for every number.

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Tue 2 PM67°67°58°73%0%NNW6 mph12 mph75%—10 mi2,500 ft
Tue 3 PM67°67°58°73%0%NW6 mph10 mph64%—10 mi2,500 ft
Tue 4 PM67°67°59°75%0%NW6 mph10 mph61%—10 mi2,500 ft
Tue 5 PM67°67°59°75%0%NW5 mph9 mph61%—10 mi3,000 ft
Tue 6 PM65°65°58°78%0%NW3 mph8 mph57%—10 mi3,000 ft
Tue 7 PM63°63°58°84%0%NW3 mph7 mph58%—10 mi
Tue 8 PM61°61°57°87%0%WSW2 mph6 mph59%—10 mi
Tue 9 PMPatchy fog60°60°57°90%0%WSW2 mph6 mph56%—10 mi
Tue 10 PMPatchy fog59°59°57°93%0%WSW2 mph5 mph49%—10 mi
Tue 11 PMPatchy fog58°58°56°93%0%WSW2 mph5 mph47%—10 mi
Wed 12 AMPatchy fog57°57°55°93%0%W1 mph3 mph37%—10 mi
Wed 1 AMPatchy fog56°56°55°96%0%WSW1 mph3 mph31%—10 mi
Wed 2 AMPatchy fog55°55°54°96%0%WSW1 mph3 mph27%—10 mi
Wed 3 AMPatchy fog55°55°53°93%0%WSW1 mph2 mph25%—10 mi
Wed 4 AMPatchy fog54°54°53°96%0%W1 mph2 mph36%—9 mi
Wed 5 AMPatchy fog53°53°52°96%0%WSW1 mph2 mph41%—8 mi
Wed 6 AMPatchy fog53°53°52°96%0%WSW1 mph2 mph46%—7 mi
Wed 7 AMPatchy fog53°53°52°96%0%WSW1 mph2 mph28%—8 mi
Wed 8 AMPatchy fog54°54°53°96%0%SW1 mph2 mph30%—9 mi
Wed 9 AMPatchy fog58°58°56°93%0%SW1 mph2 mph26%—10 mi
Wed 10 AM62°62°57°84%0%SW1 mph3 mph28%—10 mi
Wed 11 AM65°65°58°78%0%SW2 mph6 mph35%—10 mi
Wed 12 PM67°67°59°75%0%W2 mph7 mph38%—10 mi14,000 ft
Wed 1 PM69°69°59°70%0%W3 mph7 mph50%—10 mi15,000 ft
Wed 2 PM71°71°60°68%0%W3 mph8 mph59%—10 mi
Wed 3 PM71°71°60°68%0%W3 mph8 mph60%—10 mi
Wed 4 PM72°72°61°68%0%WSW3 mph8 mph52%—10 mi12,300 ft
Wed 5 PM71°71°62°73%0%WSW3 mph7 mph48%—10 mi
Wed 6 PM69°69°62°78%0%SW3 mph6 mph56%—10 mi
Wed 7 PM67°67°61°81%0%SSW3 mph6 mph60%—10 mi
Wed 8 PM64°64°62°93%0%SSW1 mph5 mph69%—10 mi
Wed 9 PM63°63°62°97%0%SSW1 mph5 mph68%—10 mi
Wed 10 PM63°63°61°93%0%SW1 mph3 mph65%—10 mi
Wed 11 PM62°62°61°97%0%SW1 mph5 mph81%—10 mi
Thu 12 AM62°62°61°97%0%SW1 mph5 mph84%—10 mi
Thu 1 AM61°61°61°100%0%SW1 mph6 mph90%—10 mi
Thu 2 AM61°61°60°97%0%SW2 mph7 mph87%—9 mi
Thu 3 AM61°61°60°97%0%SW2 mph7 mph94%—10 mi
Thu 4 AM61°61°60°97%0%SW2 mph8 mph84%—10 mi
Thu 5 AM60°60°60°100%0%SW2 mph8 mph88%—9 mi
Thu 6 AM60°60°60°100%0%SW2 mph8 mph86%—9 mi
Thu 7 AM60°60°60°100%1%SW2 mph8 mph75%—8 mi
Thu 8 AM61°61°61°100%1%SW2 mph9 mph58%—7 mi
Thu 9 AM63°63°62°97%1%SW2 mph9 mph55%——
Thu 10 AM66°66°63°90%1%SW2 mph10 mph54%——
Thu 11 AM68°68°64°87%1%SW3 mph12 mph52%——
Thu 12 PM70°70°64°81%1%SW3 mph13 mph55%——
Thu 1 PM72°72°64°76%1%SW5 mph14 mph58%——

The next 16 days

NWS grid published Sep 29, 2:14 PM EDT to day 8, the National Blend of Models to day 11, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2969°54°Partly Sunny0%wind 6 mph · gusts 13 mph
  2. WedSep 3073°59°Patchy Fog then Mostly Sunny0%wind 3 mph
  3. ThuOct 175°62°Partly Sunny1%wind 5 mph · gusts 14 mph
  4. FriOct 279°55°Mostly Sunny then Slight Chance Rain Showers33%wind 7 mph · gusts 18 mph
  5. SatOct 367°48°Slight Chance Rain Showers then Mostly Sunny33%wind 6 mph · gusts 15 mph
  6. SunOct 462°49°Chance Rain Showers45%wind 3 mph · gusts 12 mph
  7. MonOct 563°41°Slight Chance Rain Showers then Mostly Sunny33%wind 7 mph · gusts 18 mph
  8. TueOct 658°39°2%wind 5 mph · gusts 14 mph
  9. WedOct 764°45°National Blend5%wind 3 mph · gusts 12 mph
  10. ThuOct 865°47°National Blend21%0.36 inwind 5 mph · gusts 14 mph
  11. FriOct 966°46°National Blend19%0.19 inwind 5 mph · gusts 16 mph
  12. SatOct 10~62°44°Model mean0.09 in
  13. SunOct 11~61°45°Model mean0.12 in
  14. MonOct 12~55°42°Model mean
  15. TueOct 13~56°39°Model mean
  16. WedOct 14~63°38°Model mean

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like67°
  • WindNNW 6 mphgusts 12 mph
  • Radar over this pointno reading
  • Humidity73%
  • Dew point58°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility10 mi
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise8:02 PMMoonset 10:21 AM
  • Moon phaseWaning gibbous90% lit

The National Blend of Models

NOAA NBM v5.0 · run of Sep 29, 8:00 AM EDT

NOAA’s weighted blend of every model it runs, to eleven days, with the chances the grid above does not carry. Where the local office’s grid reaches, its figure sits beneath the blend’s; where it does not, the blend stands alone.

  1. TodaySep 2970°51°NWS grid 69° / 54°rain 1%wind 6 mph · gusts 14 mph
  2. WedSep 3074°59°NWS grid 73° / 59°rain 0%wind 2 mph · gusts 8 mph
  3. ThuOct 177°62°NWS grid 75° / 62°rain 0%wind 5 mph · gusts 14 mph
  4. FriOct 279°57°NWS grid 79° / 55°rain 31%thunder 15%wind 6 mph · gusts 16 mph
  5. SatOct 369°50°NWS grid 67° / 48°rain 46%0.02 inwind 5 mph · gusts 14 mph
  6. SunOct 467°48°NWS grid 62° / 49°rain 50%1.16 inwind 3 mph · gusts 10 mph
  7. MonOct 565°42°NWS grid 63° / 41°rain 17%0.02 inwind 7 mph · gusts 16 mph
  8. TueOct 662°41°NWS grid 58° / 39°rain 4%wind 3 mph · gusts 10 mph
  9. WedOct 764°45°Beyond the NWS gridrain 5%wind 3 mph · gusts 12 mph
  10. ThuOct 865°47°Beyond the NWS gridrain 21%0.36 inwind 5 mph · gusts 14 mph
  11. FriOct 966°46°Beyond the NWS gridrain 19%0.19 inwind 5 mph · gusts 16 mph
41°59°77°WedThuFriSatSunMonTue

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Sep 29, 8:00 AM EDT · GFS Sep 29, 8:00 AM EDT · GEFS Sep 29, 8:00 AM EDT · ECMWF Sep 28, 8:00 PM EDT · ECMWF AI Sep 29, 8:00 AM EDT

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

32°59°86°WedThuFriSatSunMonTue

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Sep 2969° 54°65° 57°67° 56°67° 56°69° 57°~67° 57°
Wed Sep 3073° 59°69° 53°74° 51°75° 52°72° 51°~73° 55°
Thu Oct 175° 62°63° 62°75° 61°72° 60°69° 62°0.04 in~76° 61°
Fri Oct 279° 55°—83° 59°0.05 in80° 59°0.05 in82° 62°0.10 in~82° 65°0.06 in
Sat Oct 367° 48°—63° 48°65° 48°67° 52°~69° 57°
Sun Oct 462° 49°—51° 45°0.19 in60° 45°0.19 in62° 49°~65° 49°
Mon Oct 563° 41°—60° 42°62° 47°0.18 in~70° 55°~63° 52°
Tue Oct 658° 39°—55° 37°54° 39°0.01 in~55° 43°~55° 40°
Wed Oct 7——60° 33°59° 35°0.02 in~61° 39°~61° 36°
Thu Oct 8——65° 41°63° 41°0.04 in~70° 48°~69° 46°
Fri Oct 9——~56° 47°~49° 48°0.03 in~71° 52°0.07 in~73° 57°
Sat Oct 10——~60° 39°—~55° 48°0.28 in~69° 44°
Sun Oct 11——~63° 40°—~55° 40°~64° 55°0.35 in
Mon Oct 12——~50° 36°—~60° 43°0.01 in~54° 46°
Tue Oct 13——~57° 32°—~57° 46°~55° 40°
Wed Oct 14——~63° 38°——~38° 37°

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

ECMWF ensemble meteogram for this place: box plots of cloud cover, precipitation, wind speed and temperature from the 51 ensemble members for ten days.
Rendered by ECMWF from its 51-member ensemble, in metric units: each box spans the middle half of the members, the whiskers the rest, the line the control run. A forecast, not an observation. © ECMWF, CC BY 4.0.

The next 90 days

NOAA GHCN normals and records at Sussex_airport (FWN) · Climate Prediction Center outlooks

No forecast has skill day by day past about two weeks, and this page does not print one. Where the models stop, the calendar takes over: the 1991 to 2020 normal for each date, the record high and low ever set on it, and where the Climate Prediction Center leans warm, cool, wet or dry over the coming weeks, the month and the season. A site that shows a high for a date three months out is showing you this normal with a wobble.

The forecast reaches Wed Oct 14, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

Climate Prediction Center (CPC) temperature lean33%warmer 40% · Oct 202640% chance above normal · Oct to Dec0°20°40°60°80°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normalCPC leans cooler than normalCPC near normal or equal chances

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2969° / 46°91° (2019)30° (2003)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 668° / 45°88° (2007)24° (2001)33% chance below normal · days 8 to 14near normal most likely · days 8 to 14
Oct 1362° / 41°83° (2016)20° (2015)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 2059° / 38°85° (2024)21° (2008)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 27—82° (2024)22° (2011)40% chance above normal · Oct 2026equal chances · Oct 2026
Nov 357° / 37°81° (2024)16° (2019)40% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 1051° / 32°74° (2020)17° (2019)40% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 1750° / 30°71° (2024)6° (2018)40% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 2449° / 30°71° (2014)10° (2000)40% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 144° / 25°72° (2001)-1° (2002)40% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 842° / 23°64° (2021)-11° (2005)40% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 1539° / 22°63° (2015)-2° (2005)40% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 2241° / 24°70° (2015)-4° (2024)40% chance above normal · Oct to Decequal chances · Oct to Dec

Health and activities

Rules of thumb over the next 24 hours of forecast, the warnings in force, the station’s report, air quality and pollen

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

Each rating says which span it is for: the rest of today’s daylight, tonight, or the next 24 hours.

Health

  • Arthritisnext 24 hModeratehumid
  • Sinus pressurenext 24 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayIdealfine conditions
  • HikingtodayIdealfine conditions
  • BikingtodayIdealfine conditions
  • GolftodayIdealfine conditions
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayIdealfine conditions
  • Beach and pooltodayGoodcool
  • CampingtonightIdealfine conditions
  • StargazingtonightPoorpartly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayIdealfine conditions
  • GardeningtodayIdealfine conditions
  • Outdoor entertainingtodayIdealfine conditions
  • Drying laundry outsidetodayGoodlittle sun
  • Painting and outdoor projectstodayIdealfine conditions
  • FrosttonightLowmild

Pests

  • MosquitoestodayHighwarm
  • TickstodayVery highwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayHighwarm

Stargazing

Worked out from the NWS hourly forecast and the sun and moon

Tonight has no dark, clear hour without a bright moon in this forecast. Rated poor.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
TuesdayPoor8:15 PM to 5:22 AM0 of 9None88%8 h2 mph
WednesdayPoor8:13 PM to 5:23 AM0 of 9None80%9 h2 mph
ThursdayPoor8:11 PM to 5:24 AM0 of 9None71%9 h3 mph
FridayPoor8:10 PM to 5:25 AM0 of 9None61%6 h6 mph
SaturdayPoor8:08 PM to 5:26 AM0 of 9None50%1 h2 mph
SundayPoor8:06 PM to 5:28 AM0 of 9None39%9 h1 mph
MondayPoor8:05 PM to 5:29 AM0 of 9None29%3 mph

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency in the table is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture. Seeing and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Golden hour and blue hour

Computed from the sun and moon positions
DayBlue hour, morningGolden hour, morningGolden hour, eveningBlue hour, evening
Tue6:25 AM to 6:36 AM6:36 AM to 7:29 AM6:07 PM to 7:00 PM7:00 PM to 7:11 PM
Wed6:26 AM to 6:37 AM6:37 AM to 7:30 AM6:05 PM to 6:58 PM6:58 PM to 7:09 PM
Thu6:27 AM to 6:38 AM6:38 AM to 7:31 AM6:03 PM to 6:57 PM6:57 PM to 7:07 PM
Fri6:28 AM to 6:39 AM6:39 AM to 7:33 AM6:02 PM to 6:55 PM6:55 PM to 7:06 PM
Sat6:29 AM to 6:40 AM6:40 AM to 7:34 AM6:00 PM to 6:53 PM6:53 PM to 7:04 PM
Sun6:31 AM to 6:41 AM6:41 AM to 7:35 AM5:58 PM to 6:52 PM6:52 PM to 7:02 PM
Mon6:32 AM to 6:42 AM6:42 AM to 7:36 AM5:57 PM to 6:50 PM6:50 PM to 7:01 PM
NESWSRSSMRMS
  • SR Sunrise 6:53 AM, 93° E
  • SS Sunset 6:43 PM, 267° W
  • MR Moonrise 8:02 PM, 60° ENE
  • MS Moonset 10:21 AM, 298° WNW
  • Waning gibbous, 90% lit

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

Drone flying

NWS hourly forecast, SWPC Kp, FAA TFRs and 14 CFR Part 107

This hour: good to fly. Next good stretch: Tue 2 PM to 6 PM, 4 hours.

Today: civil twilight for Part 107 6:23 AM to sunrise 6:53 AM, and sunset 6:43 PM to 7:13 PM. Anti-collision lighting is required in those minutes and at night.

Tue6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Tue 2 PMGood67130%10 mi400 ft67°nothing against it
Tue 3 PMGood67120%10 mi400 ft67°nothing against it
Tue 4 PMGood67120%10 mi400 ft67°nothing against it
Tue 5 PMGood56110%10 mi400 ft67°nothing against it
Tue 6 PMCaution3490%10 mi400 ft65°civil twilight: lighting required (107.29)
Tue 7 PMCaution38120%10 mi63°night: lighting and night training required (107.29)
Tue 8 PMCaution2690%10 mi61°night: lighting and night training required (107.29)
Tue 9 PMCaution2690%10 mi60°night: lighting and night training required (107.29)
Tue 10 PMCaution29110%10 mi59°night: lighting and night training required (107.29)
Tue 11 PMCaution29110%10 mi58°night: lighting and night training required (107.29)
Wed 12 AMCaution1570%10 mi57°night: lighting and night training required (107.29)
Wed 1 AMCaution1570%10 mi56°night: lighting and night training required (107.29)
Wed 2 AMCaution1570%10 mi55°night: lighting and night training required (107.29)
Wed 3 AMCaution1560%10 mi55°night: lighting and night training required (107.29)
Wed 4 AMCaution1560%9 mi54°night: lighting and night training required (107.29)
Wed 5 AMCaution1560%8 mi53°night: lighting and night training required (107.29)
Wed 6 AMCaution1560%7 mi53°night: lighting and night training required (107.29)
Wed 7 AMGood1130%8 mi53°nothing against it
Wed 8 AMGood1130%9 mi54°nothing against it
Wed 9 AMGood1130%10 mi58°nothing against it
Wed 10 AMGood1140%10 mi62°nothing against it
Wed 11 AMGood2360%10 mi65°nothing against it
Wed 12 PMGood2370%10 mi400 ft67°nothing against it
Wed 1 PMGood3480%10 mi400 ft69°nothing against it

Flight restrictions nearby

Reading the FAA’s temporary flight restrictions.

Flight restrictions on the map. TFRs are not the whole picture: controlled airspace around airports needs LAANC authorization. Check the FAA’s B4UFLY.

Wind at 400 ft is estimated from the 10 m forecast by the power law, with exponents for each Pasquill stability class (Irwin 1979, rural, as in EPA dispersion models; the class from wind, sun height and cloud, after Turner 1970); gusts keep the ground gust’s margin. Caution from three quarters of your limit; the default 24 mph is the wind resistance printed for common sub-250 g drones. 14 CFR 107.51: “The minimum flight visibility, as observed from the location of the control station must be no less than 3 statute miles” and at least “500 feet below the cloud”. 14 CFR 107.29: “No person may operate a small unmanned aircraft system during periods of civil twilight unless the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles”; civil twilight is the 30 minutes before sunrise and after sunset, in Alaska the Air Almanac’s. Kp: SWPC’s scales say satellite navigation problems may occur at G3 (Kp 7) and navigation is “degraded for hours” at G4 (Kp 8); Kp 5 is the typical app warning. Typical limits, not rules: rain chance 30% caution and 60% no-fly, thunder 10% and 20%, below 0 °C caution and −10 °C no-fly, over 40 °C caution. Your drone’s manual and the airspace come first.

Spraying and field work

Worked out from the NWS hourly forecast

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

  • Tue 2 PM to 7 PM 5 hours, every hour within the rules
  • Wed 1 PM to 8 PM 7 hours, every hour within the rules
  • Thu 12 PM to 7 PM 7 hours, every hour within the rules
  • Fri 11 AM to 1 PM 2 hours, every hour within the rules
  • Sat 10 AM to 4 PM 6 hours, every hour within the rules
  • Mon 7 PM to Tue 1 AM 6 hours, every hour within the rules
  • Tue 9 AM to 5 PM 8 hours, every hour within the rules
Tue6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM
Fri12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
TuesdayDry0%0.00 in73%6 mph5 d
WednesdayDry0%0.00 in68%3 mph4 d
ThursdayDry1%0.00 in73%5 mph3 d
FridayDry15%0.00 in67%7 mph2 d
SaturdayDry11%0.00 in56%5 mph1 d
SundayShowers possible45%0.00 in75%3 mph
MondayDry6%0.00 in54%7 mph2 d
TuesdayDry0%0.00 in47%5 mph1 d

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

Solunar times

Computed from the moon’s position

The best-rated day this week is Tuesday, rated good.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Tue Good1:48 AM to 3:48 AM2:15 PM to 4:15 PM9:51 AM to 10:51 AM7:32 PM to 8:32 PM 90%6:53 AM, 6:43 PM
Wed Poor2:44 AM to 4:44 AM3:13 PM to 5:13 PM11:07 AM to 12:07 PM8:14 PM to 9:14 PM 83%6:54 AM, 6:42 PM
Thu Fair3:44 AM to 5:44 AM4:15 PM to 6:15 PM12:21 PM to 1:21 PM9:07 PM to 10:07 PM 74%6:55 AM, 6:40 PM
Fri Fair4:46 AM to 6:46 AM5:17 PM to 7:17 PM1:26 PM to 2:26 PM10:10 PM to 11:10 PM 64%6:56 AM, 6:38 PM
Sat Fair5:49 AM to 7:49 AM6:19 PM to 8:19 PM2:20 PM to 3:20 PM11:22 PM to 12:22 AM 54%6:57 AM, 6:37 PM
Sun Fair6:49 AM to 8:49 AM7:17 PM to 9:17 PM3:04 PM to 4:04 PM 43%6:58 AM, 6:35 PM
Mon Fair7:45 AM to 9:45 AM8:11 PM to 10:11 PM12:38 AM to 1:38 AM3:38 PM to 4:38 PM 33%6:59 AM, 6:33 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

In words

NWS forecast periods, as issued
  1. This Afternoon69° · NW 5 mph

    Partly sunny, with a high near 69. Northwest wind around 5 mph.

  2. Tonight52° · W 0–5 mph

    Patchy fog after 9pm. Partly cloudy, with a low around 52. West wind 0 to 5 mph.

  3. Wednesday73° · SW 0–5 mph

    Patchy fog before 10am. Mostly sunny, with a high near 73. Southwest wind 0 to 5 mph.

  4. Wednesday Night59° · SW 0–5 mph

    Mostly cloudy, with a low around 59. Southwest wind 0 to 5 mph.

  5. Thursday75° · 1% · SW 0–5 mph

    Partly sunny, with a high near 75. Southwest wind 0 to 5 mph.

  6. Thursday Night62° · SW 0–5 mph

    Partly cloudy, with a low around 62.

  7. Friday79° · 15% · SW 0–5 mph

    A slight chance of rain showers after 2pm. Mostly sunny, with a high near 79.

  8. Friday Night55° · 33% · NW 5 mph

    A chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

  9. Saturday67° · 16% · N 0–5 mph

    A slight chance of rain showers before 8am. Mostly sunny, with a high near 67.

  10. Saturday Night48° · 30% · 0 mph

    A chance of rain showers after 2am. Partly cloudy, with a low around 48. Chance of precipitation is 30%.

  11. Sunday62° · 45% · E 0–5 mph

    A chance of rain showers. Partly sunny, with a high near 62. Chance of precipitation is 50%.

  12. Sunday Night49° · 45% · 0 mph

    A chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

  13. Monday63° · 15% · NW 0–5 mph

    A slight chance of rain showers before 8am. Mostly sunny, with a high near 63.

  14. Monday Night41° · 3% · NW 0–5 mph

    Mostly clear, with a low around 41.

The forecaster’s discussion

NWS Philadelphia/Mt Holly · issued Sep 29, 1:51 PM EDT

Written by the forecaster on duty for their own colleagues and for anyone who wants to know why the forecast says what it says. It is not edited for the public, so it uses the office’s shorthand; it is also the most honest thing any weather service publishes.

What Has Changed

Coastal Flood Advisories for Ocean County (NJ) and Sussex County (DE) have been extended through 9 PM this evening.

Otherwise, no significant changes have been made to the forecast.

KEY Messages

1. Low pressure over the Gulf of Maine departs as high pressure builds over the area.

2. Minor tidal flooding continues in the back bays of New Jersey and Delaware through tonight.

3. Unsettled weather possible Friday through Sunday.

Discussion

KEY MESSAGE 1...Low pressure over the Gulf of Maine departs as high pressure builds over the area.

The former nor'easter, now weak low pressure, over the Gulf of Maine continues to depart late tonight. High pressure centered near West Virginia will build east late tonight and into Wednesday.

Clouds over the area will gradually scatter out late tonight. With abundant low level moisture over the area and winds becoming nearly calm, patchy fog will develop during the early morning hours. Fog will lift and dissipate Wednesday morning, giving way to mostly sunny skies. Mild with slightly above normal temperatures on Wednesday with highs in the mid to upper 70s.

KEY MESSAGE 2...Minor tidal flooding continues in the back bays of New Jersey and Delaware through tonight.

Another round of tidal flooding is expected to occur through this afternoon and potentially into early Wednesday morning's high tide cycle. With water continuing to slowly drain out of the back bays with light offshore flow, the most prone areas of minor tidal flooding will be in the back bays of Barnegat Bay, Rehoboth Bay, Jefferson Creek and Little Assawoman Bay. As a result, the Coastal Flood Advisories for Ocean County, NJ and Sussex County, DE have been extended until 9 PM this evening. Waters should continue to recede below advisory levels on Wednesday

Outside of these areas, a few spots may reach spotty minor with tonight's high tide cycle, otherwise, no further tidal flooding is expected elsewhere.

KEY MESSAGE 3...Unsettled weather possible Friday through Sunday.

A cold front is forecast to move across the area late Friday into Friday night. As it moves into the area, there will be a chance of showers. However, as the vorticity impulse aloft weakens, the showers may dissipate for many areas as the move eastward. However, additional rain fall is expected to move back into the area Saturday night into Sunday. An area of low pressure is forecast to develop along the front as it stalls to our south Saturday, then move northward across the area through Sunday. Showers will increase Saturday night into Sunday as a couple of short wave/vorticity impulses move into the area, along with the surface low pressure.

Aviation · 18Z Tuesday Through Sunday

The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Rest of today...Lingering MVFR CIGs giving way to VFR by 21Z. VFR otherwise. W-NW winds less than 10 kt. High confidence.

Tonight...VFR initially, then VSBY restrictions, generally as low as MVFR, in fog possible. Winds LGT/VRB to nearly calm. Moderate confidence.

Wednesday...VFR. W-SW winds less than 10 kt. High confidence.

Outlook...

Friday night through Saturday...Occasional MVFR conditions with a chance of showers.

Saturday night through Sunday...MVFR conditions increase, possible IFR, with increasing rain chances.

Marine

Sub-Small Craft Advisory conditions tonight through Wednesday. Overall, a westerly flow around 10 kt, becoming south to southwest Wednesday afternoon. Seas 2 to 3 feet.

Outlook...

Wednesday through Saturday night...Conditions expected to remain below Small Craft Advisory levels.

Sunday...SCA conditions possible.

Rip Currents...

For Tuesday...Northwest winds in the morning around 10 mph will become west-southwest in the afternoon. Breaking wave heights of 1 to 3 feet are expected with a lingering 2 foot easterly swell around 7 to 9 seconds. Given these conditions, have opted to maintain a LOW risk for the development of dangerous rip currents for both the Jersey Shore and Delaware Beaches.

For Wednesday...Northwest winds in the morning around 5 to 10 mph will become south in the afternoon. Breaking wave heights of 1 to 2 feet are expected with a lingering 1 to 2 foot easterly swell around 8 to 10 seconds. Given these conditions, have opted to go with a LOW risk for rip currents for both the Jersey Shore and Delaware Beaches.

The surf season will conclude for the year on September 30th. No further rip current forecasts will be issued beyond September 30th until 2027.

For specific beach forecasts, visit weather.gov/phi

PHI Watches / Warnings / Advisories

PA...None. NJ...Coastal Flood Advisory until 9 PM EDT this evening for NJZ020- 026. DE...Coastal Flood Advisory until 9 PM EDT this evening for DEZ003- 004. MD...None. MARINE...None.

Hazardous weather outlook Sep 29, 5:05 AM EDT

The office’s own seven-day heads-up for spotters and emergency managers.

FLUS41 KPHI 290905
HWOPHI

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
505 AM EDT Tue Sep 29 2026

MDZ012-015-019-020-300915-
Kent MD-Queen Annes-Talbot-Caroline-
505 AM EDT Tue Sep 29 2026

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

The outlooks beyond

SPC, WPC, CPC and the Drought Monitor, read at this point

The national centers each publish a judgment the local grid does not carry. Read here at this exact coordinate.

Severe weather

  1. Day 1 · Tue Sep 29No risk area
  2. Day 2 · Wed Sep 30No risk area
  3. Day 3 · Thu Oct 1No risk area
  4. Day 4 · Fri Oct 2No risk area
  5. Day 5 · Sat Oct 3No risk area
  6. Day 6 · Sun Oct 4No risk area
  7. Day 7 · Mon Oct 5No risk area
  8. Day 8 · Tue Oct 6No risk area

Rainfall

  1. Day 1 · Tue Sep 29Under 0.01 in
  2. Day 2 · Wed Sep 30Under 0.01 in
  3. Day 3 · Thu Oct 10.01 in
  4. Day 4-5 · Oct 2–Oct 30.50 in
  5. Day 6-7 · Oct 4–Oct 50.01 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · TemperatureNear normal most likelyOct 4–Oct 8
  2. Days 6–10 · Precipitation33% chance above normalOct 4–Oct 8
  3. Days 8–14 · Temperature33% chance below normalOct 6–Oct 12
  4. Days 8–14 · PrecipitationNear normal most likelyOct 6–Oct 12

Frost and climate

NOAA 1991-2020 normals, Sussex AP

The last spring freeze (32°F) usually comes around May 1 and the first fall freeze around October 12: a growing season of about 164 days.

One fall in ten brings a freeze by September 30; one spring in ten still has one after May 18.

Climate of 41.14, -74.54: normals, records and every month

Everything else on the grid

NWS forecast grid · 29 elements

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.

ElementTueWedThuFriSatSunMonTue
HeatRisk max0 · Little0 · Little1 · Minor1 · Minor1 · Minor0 · Little0 · Little0 · Little
Wet bulb globe temperature max65°69°72°75°64°59°60°54°
Heat index max72°73°77°
Wind chill min49°48°39°
Chance of thunder max1%0%0%9%9%2%3%2%
Cloud ceiling min2,000 ft12,300 ft
Visibility min10 mi7 mi7 mi
Mixing height max3,300 ft3,100 ft2,000 ft3,700 ft3,600 ft2,700 ft5,000 ft4,300 ft
Transport wind max14 mph9 mph12 mph17 mph13 mph13 mph17 mph15 mph
Twenty-foot wind max6 mph3 mph5 mph6 mph6 mph3 mph6 mph5 mph
Atmospheric dispersion index max272980
Low visibility risk max8897

Against the record

NOAA GHCN · Sussex_airport (FWN) · 5.9 mi away

Each forecast day against the same calendar date at the nearest long-record station: the 1991 to 2020 normal, and the record high and low with the year they were set.

DayForecastNormalRecord highRecord low
Tue Sep 2969° / 54°70° / 49°81° (2015)38° (2002)
Wed Sep 3073° / 59°67° / 46°80° (2014)34° (2006)
Thu Oct 175° / 62°68° / 46°81° (2019)36° (2005)
Fri Oct 279° / 55°69° / 46°91° (2019)35° (2017)
Sat Oct 367° / 48°69° / 46°83° (2023)30° (2003)
Sun Oct 462° / 49°70° / 47°86° (2007)32° (2008)
Mon Oct 563° / 41°69° / 46°87° (2025)30° (2019)
Tue Oct 658° / 39°68° / 44°84° (2007)31° (2003)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Tue6:25 AM6:53 AM6:43 PM7:11 PM11 h 50 min Waning gibbous · 90% lit
Wed6:26 AM6:54 AM6:42 PM7:09 PM11 h 48 min Waning gibbous · 83% lit
Thu6:27 AM6:55 AM6:40 PM7:07 PM11 h 45 min Waning gibbous · 74% lit
Fri6:28 AM6:56 AM6:38 PM7:06 PM11 h 42 min Waning gibbous · 64% lit
Sat6:29 AM6:57 AM6:37 PM7:04 PM11 h 40 min Last quarter · 54% lit
Sun6:31 AM6:58 AM6:35 PM7:02 PM11 h 37 min Last quarter · 43% lit
Mon6:32 AM6:59 AM6:33 PM7:01 PM11 h 34 min Waning crescent · 33% lit
Tue6:33 AM7:00 AM6:32 PM6:59 PM11 h 32 min Waning crescent · 23% lit

Forecast from the National Weather Service forecast grid at api.weather.gov, updated by the local office through the day; the written periods and hourly digest are the NWS’s own. Outlooks from the Storm Prediction Center, the Weather Prediction Center and the Climate Prediction Center via NOAA’s map services. Records and normals from NOAA’s Global Historical Climatology Network. Sun and moon computed here. Place names from GeoNames (CC BY 4.0).

What is here

Seven days
The high, the low, the chance and amount of rain and snow, the wind and the forecaster’s words for each day and night, from the National Weather Service grid for the exact cell your town sits in.
Hour by hour
Temperature, what it feels like, dew point, humidity, chance and amount of precipitation, wind and gusts, sky cover, the chance of thunder, pressure, visibility and ceiling, as a chart and as a table, with nights shaded.
Everything else on the grid
The office edits about sixty fields for every cell. The ones the mainstream forecast pages leave out are here as a daily table: HeatRisk, wet bulb globe temperature, lightning activity, mixing height, transport wind, the fire weather indices, and at the coast the waves and swell.
The discussion
The Area Forecast Discussion the forecaster wrote to explain the forecast, in their own words, with the specialist annexes folded away. Also the office’s hazardous weather outlook.
Beyond the week
The Storm Prediction Center’s severe weather category for each of the next eight days, the Weather Prediction Center’s rainfall forecast to day seven and its winter storm severity, and the Climate Prediction Center’s odds for days six to fourteen, all read at your coordinate.
Against the record
Each forecast day beside the same date at the nearest long-record station: the thirty-year normal and the record high and low with their years, so a forecast high that would break a record says so.
The next 90 days
The forecast as far as the grid, the National Blend and the global models reach, and the calendar after that: the normal and the record for every date, with the Climate Prediction Center’s lean for the weeks, the month and the season drawn over them. No made-up highs for a date three months out.

Common questions

Where does this forecast come from?

From the National Weather Service forecast grid published at api.weather.gov, the same grid the local forecast office edits through the day and the source of every forecast on weather.gov. The written periods, the hourly digest and the forecaster’s discussion are the NWS’s own products, shown as issued. Nothing here is a blend a website made.

How far ahead does it go?

The grid runs seven days ahead, hour by hour for the first days and in three to six hour steps after that. The National Blend of Models carries the days to eleven and the global models to sixteen. Beyond that the page carries the national centers’ outlooks, severe weather to day eight, rainfall to day seven, and the Climate Prediction Center’s odds for the coming weeks, month and season, over a ninety-day calendar of the normal and the record for each date. No forecast has skill day by day past about two weeks, and this page does not print one.

Why is this different from the app on my phone?

Most forecast apps show a blend of models chosen by the company that makes the app. This page shows the forecast the local National Weather Service office issues, edited by the forecasters who will also issue the warnings, and it shows all of it rather than the six numbers that fit on a phone. The discussion explains the reasoning, which no app carries.

What is a place’s address here?

Every town has its own page, such as /forecast/us/oklahoma/oklahoma-city/, and every day at a town has one too. A ZIP code typed into the search goes to the town it belongs to. Any coordinate at all can be looked up, and the page names the nearest town.

What the weather actually was · Open the live radar · Where the data comes from