Current weather · Sep 20, 8:53 PM GMT+3

Riihimäki, Finland

55°

CloudyFeels like 53° · Humidity 76%MET Norway forecast for this hourForecast by MET Norway
High
55°
Low
51°
Precip today
12%
Sunrise
7:00 AM
Sunset
7:28 PM

Hour by hour

MET Norway, hourly to about 60 hours, then every six hours

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

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Sun 8 PM55°53°48°76%0%SW9 mph17 mph98%4%29.53 inHg—
Sun 9 PM55°53°48°80%5%SSW5 mph15 mph98%12%29.53 inHg—
Sun 10 PM54°53°49°82%10%S5 mph9 mph83%13%29.53 inHg—
Sun 11 PM53°51°51°92%12%S6 mph11 mph54%14%29.53 inHg—
Mon 12 AM53°51°51°94%15%SSW6 mph12 mph96%19%29.53 inHg—
Mon 1 AM52°50°49°88%24%SSW6 mph12 mph86%18%29.52 inHg—
Mon 2 AM52°51°51°95%28%SSW5 mph11 mph91%14%29.53 inHg—
Mon 3 AM52°51°51°97%22%WSW4 mph8 mph60%14%29.52 inHg—
Mon 4 AM51°49°51°99%11%SE5 mph8 mph79%16%29.52 inHg—
Mon 5 AM51°50°51°99%10%S4 mph9 mph100%14%29.54 inHg—
Mon 6 AM51°50°51°100%13%S3 mph8 mph100%27%29.54 inHg—
Mon 7 AM51°51°51°99%12%SSW2 mph6 mph100%9%29.55 inHg—
Mon 8 AM51°51°49°96%11%NNE1 mph4 mph100%6%29.56 inHg—
Mon 9 AM52°51°51°97%9%SSW3 mph7 mph94%6%29.58 inHg—
Mon 10 AM53°53°51°95%9%WNW2 mph7 mph91%3%29.61 inHg—
Mon 11 AM54°54°51°90%8%N3 mph7 mph82%1%29.64 inHg—
Mon 12 PM56°56°51°82%3%N3 mph8 mph59%5%29.66 inHg—
Mon 1 PM58°59°51°77%1%N3 mph8 mph68%6%29.68 inHg—
Mon 2 PM59°59°52°77%1%N5 mph11 mph83%11%29.70 inHg—
Mon 3 PM60°60°51°72%3%N5 mph11 mph95%12%29.72 inHg—
Mon 4 PM60°60°51°72%4%NNE6 mph11 mph96%11%29.75 inHg—
Mon 5 PM59°59°50°72%4%NNE5 mph11 mph61%10%29.76 inHg—
Mon 6 PM59°59°50°74%5%N4 mph9 mph27%12%29.79 inHg—
Mon 7 PM57°57°52°86%12%NNE2 mph7 mph34%13%29.83 inHg—
Mon 8 PM54°53°51°91%9%NNW4 mph7 mph56%11%29.87 inHg—
Mon 9 PM53°50°49°90%9%N6 mph11 mph65%7%29.90 inHg—
Mon 10 PM51°50°47°87%4%N4 mph12 mph27%5%29.93 inHg—
Mon 11 PM51°49°48°94%4%NNW5 mph8 mph26%1%29.96 inHg—
Tue 12 AM49°47°48°97%6%NNW5 mph9 mph11%1%29.97 inHg—
Tue 1 AM49°47°48°97%7%NNW5 mph8 mph4%0%30.00 inHg—
Tue 2 AM48°46°47°97%7%NNW5 mph9 mph2%0%30.02 inHg—
Tue 3 AM47°45°46°96%2%NNW5 mph8 mph1%30.04 inHg—
Tue 4 AM46°44°45°97%1%NNW4 mph8 mph1%30.06 inHg—
Tue 5 AM45°42°44°98%0%NNW5 mph9 mph2%30.08 inHg—
Tue 6 AM44°41°43°97%0%NNW5 mph9 mph0%30.10 inHg—
Tue 7 AM43°40°42°98%0%NNW5 mph9 mph0%30.12 inHg—
Tue 8 AM44°40°42°96%0%NNW6 mph9 mph0%30.14 inHg—
Tue 9 AM45°42°43°92%0%NNW6 mph12 mph0%30.16 inHg—
Tue 10 AM48°45°44°84%0%N7 mph13 mph0%30.17 inHg—
Tue 11 AM52°50°44°73%0%N7 mph14 mph0%1%30.18 inHg—
Tue 12 PM56°53°44°64%0%N9 mph17 mph0%1%30.19 inHg—
Tue 1 PM58°56°44°60%0%N9 mph18 mph8%0%30.19 inHg—
Tue 2 PM59°57°43°56%0%N9 mph18 mph16%0%30.20 inHg—
Tue 3 PM59°59°42°52%0%N8 mph17 mph12%0%30.20 inHg—
Tue 4 PM59°59°40°50%1%NNE8 mph17 mph9%0%30.20 inHg—
Tue 5 PM59°58°39°50%0%NNE7 mph16 mph4%0%30.21 inHg—
Tue 6 PM57°56°40°54%0%NNE7 mph15 mph1%0%30.21 inHg—
Tue 7 PM54°53°41°64%0%NNE5 mph13 mph0%0%30.22 inHg—

The next 16 days

MET Norway forecast updated Sep 20, 8:29 PM GMT+3 to day 11, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2055°51°Cloudy12%wind 9 mph · gusts 17 mph
  2. MonSep 2160°45°Cloudy28%wind 6 mph · gusts 12 mph
  3. TueSep 2259°42°Mostly clear7%wind 9 mph · gusts 18 mph
  4. WedSep 2357°47°Cloudy18%wind 9 mph
  5. ThuSep 2457°51°Partly cloudy32%wind 7 mph
  6. FriSep 2559°50°Partly cloudy32%wind 9 mph
  7. SatSep 2658°53°Cloudy16%wind 9 mph
  8. SunSep 2760°51°Partly cloudy16%wind 9 mph
  9. MonSep 2861°49°Partly cloudy8%wind 9 mph
  10. TueSep 2959°49°Cloudy16%wind 10 mph
  11. WedSep 3059°49°Cloudy16%wind 9 mph
  12. ThuOct 1~60°49°Model mean
  13. FriOct 2~62°52°Model mean0.01 in
  14. SatOct 3~60°51°Model mean0.08 in
  15. SunOct 4~60°48°Model mean0.02 in
  16. MonOct 5~59°46°Model mean

Right now

MET Norway forecast for this hour
  • Feels like53°
  • WindSW 9 mphgusts 17 mph
  • Humidity76%
  • Dew point48°
  • Pressure29.53 inHg
  • UV index0 · Lowclear-sky peak 2 Monday
  • Sunrise and sunsetSunrise · Sunset · set
  • Moonrise6:41 PMMoonset 10:55 PM
  • Moon phaseWaxing gibbous62% lit

The models, side by side

GFS Sep 20, 3:00 PM GMT+3 · GEFS Sep 20, 9:00 AM GMT+3 · ECMWF Sep 20, 3:00 AM GMT+3 · ECMWF AI Sep 20, 3:00 AM GMT+3

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°50°68°MonTueWedThuFriSatSun

DayNWS gridGFSGEFSECMWFECMWF AI
Today Sep 2055° 51°~61° 49°~58° 49°0.02 in62° 52°0.07 in~61° 51°0.07 in
Mon Sep 2160° 45°61° 46°0.02 in60° 46°0.07 in59° 47°0.02 in~57° 47°0.08 in
Tue Sep 2259° 42°57° 45°56° 44°58° 44°~56° 45°
Wed Sep 2357° 47°49° 46°0.04 in53° 45°0.03 in57° 45°0.06 in~55° 43°
Thu Sep 2457° 51°54° 45°0.17 in56° 46°0.06 in55° 49°0.26 in~55° 40°
Fri Sep 2559° 50°60° 47°57° 48°0.02 in55° 52°0.22 in~57° 41°
Sat Sep 2658° 53°58° 49°57° 47°0.02 in~60° 49°0.10 in~55° 51°0.02 in
Sun Sep 2760° 51°54° 50°0.02 in57° 47°0.02 in~62° 51°~56° 49°0.05 in
Mon Sep 2861° 49°58° 47°0.02 in58° 48°0.02 in~53° 49°~56° 47°
Tue Sep 2959° 49°59° 45°58° 47°~63° 53°0.04 in~60° 51°
Wed Sep 3059° 49°60° 44°~50° 48°~63° 47°~64° 52°
Thu Oct 1—~55° 45°0.01 in—~66° 51°~59° 51°
Fri Oct 2—~57° 48°0.04 in—~66° 55°~63° 52°
Sat Oct 3—~49° 48°0.23 in—~62° 53°~69° 51°
Sun Oct 4—~56° 47°0.07 in—~56° 47°~66° 50°
Mon Oct 5—~59° 46°—~48° 48°~54° 54°

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

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.

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

Health

  • Arthritisnext 24 hVery highpressure swing
  • Sinus pressurenext 24 hVery highpressure swing
  • Common coldtomorrowLowmild
  • FlutomorrowLowmild
  • Migrainenext 24 hVery highpressure swing
  • Asthmanext 24 hLowclean air
  • Heat stresstomorrowLowmild
  • SunburntomorrowLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtomorrowVery goodhumid
  • HikingtomorrowIdealfine conditions
  • BikingtomorrowIdealfine conditions
  • GolftomorrowIdealfine conditions
  • FishingtomorrowGoodpressure swing
  • Boating and paddlingtomorrowIdealfine conditions
  • Beach and pooltomorrowFaircool
  • CampingtonightVery goodthunderstorms
  • StargazingtonightPoormostly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtomorrowIdealfine conditions
  • GardeningtomorrowIdealfine conditions
  • Outdoor entertainingtomorrowVery goodhumid
  • Drying laundry outsidetomorrowGoodhumid
  • Painting and outdoor projectstomorrowVery goodhumid
  • FrosttonightLowmild

Pests

  • MosquitoestomorrowHighwarm
  • TickstomorrowVery highwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststomorrowModeratehumid

In words

Written here from the MET Norway forecast

  1. Tonight51° · 28% · SSW 4–9 mph

    Cloudy. Low near 11°C. Southsouthwest wind 6 to 14 km/h. Chance of precipitation is 28%.

  2. Monday60° · 13% · N 1–6 mph

    Cloudy. High near 16°C. North wind 1 to 9 km/h. Chance of precipitation is 13%.

  3. Monday Night45° · 12% · NNW 2–6 mph

    Partly cloudy. Low near 7°C. Northnorthwest wind 3 to 10 km/h. Chance of precipitation is 12%.

  4. Tuesday59° · 1% · N 6–9 mph

    Mostly clear. High near 15°C. North wind 9 to 14 km/h. Chance of precipitation is 1%.

  5. Tuesday Night42° · 8% · N 4–7 mph

    Clear. Low near 6°C. North wind 7 to 11 km/h. Chance of precipitation is 8%.

  6. Wednesday57° · 18% · N 9–9 mph

    Cloudy. High near 14°C. North wind 14 to 15 km/h. Chance of precipitation is 18%.

  7. Wednesday Night47° · 8% · ENE 4–6 mph

    Cloudy. Low near 8°C. Eastnortheast wind 7 to 9 km/h. Chance of precipitation is 8%.

  8. Thursday57° · 26% · NNE 6–6 mph

    Partly cloudy. High near 14°C. Northnortheast wind 9 to 10 km/h. Chance of precipitation is 26%.

  9. Thursday Night51° · 32% · NNE 7–8 mph

    Cloudy. Low near 11°C. Northnortheast wind 11 to 13 km/h. Chance of precipitation is 32%.

  10. Friday59° · 16% · NE 8–9 mph

    Partly cloudy. High near 15°C. Northeast wind 13 to 14 km/h. Chance of precipitation is 16%.

  11. Friday Night50° · 8% · ENE 6–6 mph

    Partly cloudy. Low near 10°C. Eastnortheast wind 9 to 10 km/h. Chance of precipitation is 8%.

  12. Saturday58° · 16% · ESE 7–9 mph

    Cloudy. High near 15°C. Eastsoutheast wind 11 to 14 km/h. Chance of precipitation is 16%.

  13. Saturday Night53° · 16% · SSW 7–7 mph

    Partly cloudy. Low near 11°C. Southsouthwest wind 11 to 12 km/h. Chance of precipitation is 16%.

  14. Sunday60° · 16% · SSE 7–9 mph

    Partly cloudy. High near 16°C. Southsoutheast wind 12 to 14 km/h. Chance of precipitation is 16%.

  15. Sunday Night51° · 6% · SSW 6 mph

    Cloudy. Low near 11°C. Southsouthwest wind around 10 km/h. Chance of precipitation is 6%.

  16. Monday61° · 8% · SW 6–9 mph

    Partly cloudy. High near 16°C. Southwest wind 10 to 15 km/h. Chance of precipitation is 8%.

  17. Monday Night49° · 12% · S 7–8 mph

    Partly cloudy. Low near 9°C. South wind 12 to 13 km/h. Chance of precipitation is 12%.

  18. Tuesday59° · 14% · SSW 9–10 mph

    Cloudy. High near 15°C. Southsouthwest wind 14 to 16 km/h. Chance of precipitation is 14%.

  19. Tuesday Night49° · 16% · SSW 7–9 mph

    Partly cloudy. Low near 10°C. Southsouthwest wind 12 to 14 km/h. Chance of precipitation is 16%.

  20. Wednesday59° · 12% · SSW 6–8 mph

    Cloudy. High near 15°C. Southsouthwest wind 10 to 13 km/h. Chance of precipitation is 12%.

Everything else on the grid

MET Norway · 15 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.

ElementSunMonTueWedThuFriSatSunMonTueWed
Chance of thunder max14%27%1%0%
Pressure min29.53 inHg29.52 inHg29.97 inHg30.06 inHg29.93 inHg29.89 inHg30.01 inHg30.04 inHg30.14 inHg30.16 inHg30.16 inHg

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sun6:17 AM7:00 AM7:28 PM8:10 PM12 h 28 min Waxing gibbous · 62% lit
Mon6:19 AM7:02 AM7:24 PM8:07 PM12 h 22 min Waxing gibbous · 72% lit
Tue6:22 AM7:05 AM7:21 PM8:04 PM12 h 16 min Waxing gibbous · 81% lit
Wed6:24 AM7:07 AM7:18 PM8:01 PM12 h 11 min Waxing gibbous · 89% lit
Thu6:27 AM7:09 AM7:15 PM7:57 PM12 h 6 min Waxing gibbous · 94% lit
Fri6:29 AM7:12 AM7:12 PM7:54 PM12 h 0 min Waxing gibbous · 98% lit
Sat6:32 AM7:14 AM7:09 PM7:51 PM11 h 55 min Full moon · 100% lit
Sun6:34 AM7:17 AM7:06 PM7:48 PM11 h 49 min Full moon · 99% lit
Mon6:37 AM7:19 AM7:03 PM7:45 PM11 h 44 min Waning gibbous · 97% lit
Tue6:39 AM7:22 AM6:59 PM7:42 PM11 h 37 min Waning gibbous · 92% lit
Wed6:42 AM7:24 AM6:56 PM7:39 PM11 h 32 min Waning gibbous · 85% lit

Forecast from MET Norway’s Locationforecast (the Norwegian Meteorological Institute, CC BY 4.0), built on the ECMWF model and refined by MET, updated through the day; the written periods are composed here from its hourly data. Global model lines from NOAA’s GFS and ECMWF’s open data where they are ingested. 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