47.4560, -91.2320

1. Sat11 PM50°1%6 mph
2. Sun12 AM49°1%7 mph
3. 1 AM48°5%9 mph
4. 2 AM47°5%9 mph
5. 3 AM46°4%10 mph
6. 4 AM46°4%10 mph
7. 5 AM44°4%10 mph
8. 6 AM44°2%10 mph
9. 7 AM44°9 mph
10. 8 AM43°9 mph
11. 9 AM47°1%10 mph
12. 10 AM51°10 mph
13. 11 AM54°10 mph
14. 12 PM55°12 mph
15. 1 PM57°12 mph
16. 2 PM57°13 mph
17. 3 PM57°13 mph
18. 4 PM58°12 mph
19. 5 PM56°9 mph
20. 6 PM54°6%7 mph
21. 7 PM51°1%6 mph
22. 8 PM46°3%5 mph
23. 9 PM45°1%3 mph
24. 10 PM44°3 mph
25. 11 PM43°3 mph
26. Mon12 AM41°3 mph
27. 1 AM40°3 mph
28. 2 AM40°3 mph
29. 3 AM38°3 mph
30. 4 AM38°3 mph
31. 5 AM37°3 mph
32. 6 AM36°3 mph
33. 7 AM35°3 mph
34. 8 AM37°2 mph
35. 9 AM43°2 mph
36. 10 AM48°1 mph
37. 11 AM52°2 mph
38. 12 PM54°3 mph
39. 1 PM54°3 mph
40. 2 PM55°5 mph
41. 3 PM54°6 mph
42. 4 PM53°6 mph
43. 5 PM51°5 mph
44. 6 PM48°3 mph
45. 7 PM45°2 mph
46. 8 PM44°2 mph
47. 9 PM44°2 mph
48. 10 PM44°2 mph

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

1. TodayOct 352°43°Partly Cloudy79%0.14 inwind 6 mph · gusts 16 mph
2. SunOct 459°35°Sunny6%0.01 inwind 13 mph · gusts 28 mph
3. MonOct 556°42°Areas Of Frost then Mostly Sunny0%wind 6 mph · gusts 12 mph
4. TueOct 669°46°Mostly Sunny1%wind 12 mph · gusts 26 mph
5. WedOct 763°41°Sunny5%wind 16 mph · gusts 32 mph
6. ThuOct 859°39°Mostly Sunny10%wind 8 mph · gusts 21 mph
7. FriOct 957°41°Mostly Sunny7%wind 5 mph · gusts 14 mph
8. SatOct 1061°47°Slight Chance Rain Showers18%wind 12 mph · gusts 26 mph
9. SunOct 1161°41°35%wind 12 mph · gusts 26 mph
10. MonOct 1254°36°National Blend26%wind 12 mph · gusts 25 mph
11. TueOct 1351°36°National Blend17%wind 8 mph · gusts 20 mph
12. WedOct 14~51°42°Model mean0.32 in
13. ThuOct 15~50°38°Model mean0.42 in
14. FriOct 16~39°34°Model mean0.02 in
15. SatOct 17~46°34°Model mean
16. SunOct 18~55°43°Model mean

• Feels like48°
• WindW 6 mphgusts 16 mph
• Radar over this pointno reading
• Humidity92%
• Dew point48°
• Pressure—
• UV index—
• Air quality—
• Visibility9 mi
• Sunrise and sunsetSunrise · Sunset · set
• Moonrise11:35 PMMoonset 3:28 PM
• Moon phaseLast quarter53% lit

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. TodayOct 3—43°NWS grid 52° / 43°rain 65%wind 8 mph · gusts 22 mph
2. SunOct 459°36°NWS grid 59° / 35°rain 14%0.01 inwind 13 mph · gusts 28 mph
3. MonOct 556°42°NWS grid 56° / 42°rain 1%wind 5 mph · gusts 13 mph
4. TueOct 669°46°NWS grid 69° / 46°rain 1%wind 9 mph · gusts 22 mph
5. WedOct 764°41°NWS grid 63° / 41°rain 4%wind 15 mph · gusts 32 mph
6. ThuOct 860°39°NWS grid 59° / 39°rain 12%wind 9 mph · gusts 21 mph
7. FriOct 957°41°NWS grid 57° / 41°rain 12%wind 5 mph · gusts 14 mph
8. SatOct 1060°45°NWS grid 61° / 47°rain 17%wind 13 mph · gusts 28 mph
9. SunOct 1160°41°NWS grid 61° / 41°rain 31%0.08 inwind 10 mph · gusts 24 mph
10. MonOct 1254°36°Beyond the NWS gridrain 26%wind 12 mph · gusts 25 mph
11. TueOct 1351°36°Beyond the NWS gridrain 17%wind 8 mph · gusts 20 mph
12. WedOct 1453°—Beyond the NWS gridrain 21%wind 10 mph · gusts 22 mph

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.

NWS gridBlendHRRRGFSGEFS ± spreadECMWFECMWF AI

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

ECMWF ensemble meteogram

10 daysTemperature plume

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 Sun Oct 18, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normal

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.

The sun is down, so each rating says which span it is for: tomorrow’s daylight, tonight, or the next 24 hours.

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

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 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.

This hour: no-fly (gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)). Next good stretch: Mon 8 AM to 6 PM, 10 hours.

Today: civil twilight for Part 107 6:37 AM to sunrise 7:07 AM, and sunset 6:40 PM to 7:10 PM. Anti-collision lighting is required in those minutes and at night.

Good Caution No-fly

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.

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

• Sun 9 PM to Mon 12 AM 3 hours, every hour within the rules
• Mon 12 PM to 7 PM 7 hours, every hour within the rules
• Wed 11 PM to Thu 4 AM 5 hours, every hour within the rules
• Thu 8 AM to 10 AM 2 hours, every hour within the rules
• Thu 7 PM to 11 PM 4 hours, every hour within the rules
• Fri 9 AM to 7 PM 10 hours, every hour within the rules

Good Marginal No

Field days

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.

The best-rated day this week is Friday, rated best.

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.

1. Tonight43° · 5% · NW 5–10 mph

   Partly cloudy, with a low around 43. Northwest wind 5 to 10 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible.

2. Sunday59° · 2% · NW 10–15 mph

   Sunny. High near 59, with temperatures falling to around 56 in the afternoon. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

3. Sunday Night35° · 6% · NW 5 mph

   Areas of frost after 5am. Mostly clear. Low around 35, with temperatures rising to around 37 overnight. Northwest wind around 5 mph, with gusts as high as 25 mph.

4. Monday56° · SW 0–5 mph

   Areas of frost before 9am. Mostly sunny, with a high near 56. Southwest wind 0 to 5 mph.

5. Monday Night42° · SE 0–5 mph

   Mostly cloudy, with a low around 42. Southeast wind 0 to 5 mph.

6. Tuesday69° · 1% · SW 5–10 mph

   Mostly sunny, with a high near 69. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.

7. Tuesday Night46° · 1% · NW 5–10 mph

   Mostly clear, with a low around 46. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

8. Wednesday63° · 5% · NW 10–15 mph

   Sunny, with a high near 63. Northwest wind 10 to 15 mph, with gusts as high as 35 mph.

9. Wednesday Night41° · 5% · NW 5–10 mph

   Mostly clear, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

10. Thursday59° · 10% · NW 5–10 mph

    Mostly sunny, with a high near 59. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

11. Thursday Night39° · 7% · NW 0–5 mph

    Partly cloudy, with a low around 39. Northwest wind 0 to 5 mph, with gusts as high as 20 mph.

12. Friday57° · 7% · NW 5 mph

    Mostly sunny, with a high near 57. Northwest wind around 5 mph.

13. Friday Night41° · 9% · NE 0–5 mph

    Mostly cloudy, with a low around 41. Northeast wind 0 to 5 mph.

14. Saturday61° · 18% · SE 5–10 mph

    A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 61. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.

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.

FLUS43 KDLH 032133
HWODLH

Hazardous Weather Outlook
National Weather Service Duluth MN
433 PM CDT Sat Oct 3 2026

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-042145-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
433 PM CDT Sat Oct 3 2026

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Tonight

An isolated lightning strike may occur from an embedded
thunderstorm or two late this afternoon into the early evening. 

.DAYS TWO THROUGH SEVEN...Sunday through Friday

A widespread frost is expected on Sunday night into Monday 
morning for locations away from Lake Superior. A Frost Advisory 
will likely be needed with the potential for Freeze Warnings. 

.SPOTTER INFORMATION STATEMENT...

Skywarn spotter activation will not be needed tonight.

$$

LSZ121-140>148-150-042145-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
433 PM CDT Sat Oct 3 2026

This Hazardous Weather Outlook is for portions of Lake Superior
and the Nearshore waters of western Lake Superior.

.DAY ONE...Tonight

Breezy southerly winds and elevated wave heights will create
conditions hazardous to smaller vessels across western Lake
Superior this evening into tonight. Small Craft Advisories remain
in effect. 

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Several rounds of gusty winds are expected through late next 
week. Additional time periods will likely need Small Craft 
Advisories.

$$

Unruh

More information may be obtained at the following web address: 
http://www.weather.gov/duluth

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

The last spring freeze (32°F) usually comes around May 15 and the first fall freeze around October 1: a growing season of about 137 days.

One fall in ten brings a freeze by September 17; one spring in ten still has one after May 31.

Climate of 47.46, -91.23: normals, records and every month

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.

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.