Snohomish County weather, town by town
66 places in Snohomish County, Washington, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1894 to 2026. Station extremes, not official state records.
Snohomish County Weather Facts
Snohomish County has 66 places on myweatherrock (47 census-designated places, 17 cities, 2 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 112°F at Darrington Rs on June 29, 2021. The coldest night is -11°F at Darrington Rs on January 11, 1916. The wettest day brought 8.6 inches of rain at Alpine Meadows on October 20, 2003. The biggest single-day snow measured 24.02 inches at Darrington Rs on January 20, 1943. Those are station measurements from NOAA's daily records, 1894 to 2026, not official state records. By area the largest place is Everett, about 34 square miles.
About Snohomish County weather
The map on the Now tab shows every Snohomish County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 66 Snohomish County towns with station normals, the warmest month is August, when the day usually reaches 76°F, and the coldest is December, when the night usually falls to 34°F. March is the wettest, with rain on about 18 days. August afternoons run from about 66°F in Index to 81°F in Darrington. December nights run from about 29°F in Index to 37°F in Bothell East.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Snohomish County weather records
Measured at the NOAA stations serving these towns, daily records 1894 to 2026. Station extremes, not official state records.
Common questions about Snohomish County weather
- What is the hottest temperature recorded at a Snohomish County station?
- 112°F at Darrington Rs on June 29, 2021, in the NOAA daily station records myweatherrock holds (1894 to 2026).
- What is the coldest temperature recorded at a Snohomish County station?
- -11°F at Darrington Rs on January 11, 1916.
- What is the most rain a Snohomish County station has measured in one day?
- 8.6 inches at Alpine Meadows on October 20, 2003.
- What is the biggest one-day snowfall at a Snohomish County station?
- 24.02 inches at Darrington Rs on January 20, 1943.
- How many Snohomish County towns have a weather page here?
- 66: 47 census-designated places, 17 cities, 2 towns. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Snohomish County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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