Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Hazardous Weather Conditions

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

30°F

-1°C

Humidity 100%
Wind Speed ESE 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 14 Mar 06:15 AM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

Flood Watch March 14, 06:44am until March 15, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 14, 06:44am until March 15, 05:00pm

    NOW until 5:00pm Sun

    Flood Watch

  • Today

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Light and variable wind.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of rain after 11am.  Cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm.  Cloudy, with a low around 40. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Monday

    Monday: Rain likely.  Cloudy, with a high near 57. Light south southeast wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain Likely

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  High near 55. Chance of precipitation is 90%.

    High: 55 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 47.

    Low: 47 °F

    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 46. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 28. Light and variable wind.
Sunday
A 50 percent chance of rain after 11am. Cloudy, with a high near 48. Calm wind.
Sunday Night
Rain likely, mainly before 11pm. Cloudy, with a low around 40. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely. Cloudy, with a high near 57. Light south southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 43.
Tuesday
Rain. High near 55. Chance of precipitation is 90%.
Tuesday Night
Rain. Cloudy, with a low around 47.
Wednesday
Rain. Cloudy, with a high near 56.
Wednesday Night
Rain. Cloudy, with a low around 48.
Thursday
Rain. Cloudy, with a high near 60.
Thursday Night
Rain likely. Mostly cloudy, with a low around 47.
Friday
A chance of rain. Mostly cloudy, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.52°N 122.75°W (Elev. 423 ft)
2:25 am PDT Mar 14, 2026
6am PDT Mar 14, 2026-6pm PDT Mar 20, 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