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

52°F

11°C

Humidity 75%
Wind Speed WSW 4 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 44°F (7°C)
Visibility NA
Last update 01 Mar 12:30 PM PST
Extended Forecast for

Onalaska WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 4am.  Patchy fog before 1am.  Otherwise, increasing clouds, with a low around 43. Calm wind.

    Low: 43 °F

    Chance Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain, mainly after 10am.  High near 49. South wind 3 to 7 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 43. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 47. Chance of precipitation is 100%.

    High: 47 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Cloudy, with a low around 38.

    Low: 38 °F

    Rain

  • Thursday

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

    High: 46 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 55. Calm wind.
Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 34. Calm wind.
Monday
Mostly sunny, with a high near 58. Calm wind.
Monday Night
A 30 percent chance of rain, mainly after 4am. Patchy fog before 1am. Otherwise, increasing clouds, with a low around 43. Calm wind.
Tuesday
Rain, mainly after 10am. High near 49. South wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 43. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 47. Chance of precipitation is 100%.
Wednesday Night
Rain. Cloudy, with a low around 38.
Thursday
Rain. Cloudy, with a high near 46.
Thursday Night
Rain. Cloudy, with a low around 40.
Friday
Rain likely. Cloudy, with a high near 48.
Friday Night
Rain likely. Mostly cloudy, with a low around 40.
Saturday
Rain. 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)
7:00 am PST Mar 1, 2026
12pm PST Mar 1, 2026-6pm PST Mar 7, 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