Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

30°F

-1°C

Humidity 98%
Wind Speed WNW 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 02 Mar 03:30 AM PST
Extended Forecast for

Onalaska WA

  • Overnight

    Overnight: Areas of fog.  Otherwise, mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Areas Fog

  • Monday

    Monday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Rain likely, mainly after 4am.  Increasing clouds, with a low around 43. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain.  High near 50. South wind 3 to 6 mph.  Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 44. South wind around 5 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 49. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Rain

  • Thursday

    Thursday: Rain.  Cloudy, with a high near 46.

    High: 46 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely.  Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Areas of fog. Otherwise, mostly clear, with a low around 34. Calm wind.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 57. Calm wind.
Monday Night
Rain likely, mainly after 4am. Increasing clouds, with a low around 43. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 50. South wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 44. South wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 49. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 39. Chance of precipitation is 80%.
Thursday
Rain. Cloudy, with a high near 46.
Thursday Night
Rain likely. Mostly cloudy, with a low around 40.
Friday
Rain likely. Cloudy, with a high near 49.
Friday Night
Rain likely. Cloudy, with a low around 43.
Saturday
Rain likely. Cloudy, with a high near 51.
Saturday Night
Rain likely. Cloudy, with a low around 39.
Sunday
Rain likely. Cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
1:25 am PST Mar 2, 2026
3am PST Mar 2, 2026-6pm PDT Mar 8, 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