Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

52°F

11°C

Humidity 70%
Wind Speed S 2 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 28 Feb 02:15 PM PST
Extended Forecast for

Onalaska WA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 51. North wind 3 to 5 mph.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: Widespread dense fog, mainly after 4am.  Otherwise, mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy
    then Dense
    Fog

  • Sunday

    Sunday: Widespread dense fog, mainly before 9am.  Otherwise, partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Dense Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain.  Mostly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 10am.  High near 50. Chance of precipitation is 90%.

    High: 50 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 42.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Cloudy, with a high near 48.

    High: 48 °F

    Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 51. North wind 3 to 5 mph.
Tonight
Widespread dense fog, mainly after 4am. Otherwise, mostly cloudy, with a low around 33. Calm wind.
Sunday
Widespread dense fog, mainly before 9am. Otherwise, partly sunny, with a high near 55. Calm wind.
Sunday Night
Partly cloudy, with a low around 34. Calm wind.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 56. Calm wind.
Monday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 41.
Tuesday
Rain, mainly after 10am. High near 50. Chance of precipitation is 90%.
Tuesday Night
Rain. Cloudy, with a low around 42.
Wednesday
Rain. Cloudy, with a high near 48.
Wednesday Night
Rain. Cloudy, with a low around 39.
Thursday
Rain. Cloudy, with a high near 45.
Thursday Night
Rain likely. Cloudy, with a low around 39.
Friday
Rain likely. Cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
1:25 pm PST Feb 28, 2026
2pm PST Feb 28, 2026-6pm PST Mar 6, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database