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Weather in Oso, WA · National Weather Service + NOAA

Oso stays cool in summer

Oso has mild winters and cool summers, with plenty of rain. A typical July afternoon reaches 75°, a January night drops to 33°, and about 16 inches of snow falls in a normal winter. A typical November afternoon reaches 48°, and nights fall to 36°.

Right now
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Sunrise 10:03 am · sunset 7:39 pm

Getting the latest forecast from the National Weather Service…

What stands out about Oso’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
A normal year

Where today sits in Oso’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
44° / 33°
5 days with an inch or more of snow
Spring
58° / 39°
Last frost around Mar 28
Summer
73° / 51°
3 days reach 90° in a normal year
Fall now
58° / 42°
First frost around Nov 14

Weather talk

Road reports, first frosts and storm memories from neighbors in Oso.

Town Square →
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Is summer the best season in Oso?

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Oso itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Concrete Ppl Fish Stn, WA (19 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.