Cowlitz County weather, town by town
10 places in Cowlitz 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 1925 to 2026. Station extremes, not official state records.
Cowlitz County Weather Facts
Cowlitz County has 10 places on myweatherrock (5 census-designated places, 5 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 116°F at Scappoose Ind Ap on June 28, 2021. The coldest night is -6°F at Longview on January 17, 1930. The wettest day brought 7.5 inches of rain at Cougar 6 E on November 7, 2006. The biggest single-day snow measured 24.02 inches at Cougar 6 E on January 4, 1954. Those are station measurements from NOAA's daily records, 1925 to 2026, not official state records. By area the largest place is Longview, about 15 square miles.
About Cowlitz County weather
The map on the Now tab shows every Cowlitz 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 5 Cowlitz County towns with station normals, the warmest month is August, when the day usually reaches 81°F, and the coldest is December, when the night usually falls to 35°F. January is the wettest, with rain on about 22 days. December nights run from about 33°F in Woodland to 36°F in Longview.
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.
Cowlitz County weather records
Measured at the NOAA stations serving these towns, daily records 1925 to 2026. Station extremes, not official state records.
Common questions about Cowlitz County weather
- What is the hottest temperature recorded at a Cowlitz County station?
- 116°F at Scappoose Ind Ap on June 28, 2021, in the NOAA daily station records myweatherrock holds (1925 to 2026).
- What is the coldest temperature recorded at a Cowlitz County station?
- -6°F at Longview on January 17, 1930.
- What is the most rain a Cowlitz County station has measured in one day?
- 7.5 inches at Cougar 6 E on November 7, 2006.
- What is the biggest one-day snowfall at a Cowlitz County station?
- 24.02 inches at Cougar 6 E on January 4, 1954.
- How many Cowlitz County towns have a weather page here?
- 10: 5 census-designated places, 5 cities. 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 Cowlitz 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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