Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

44°F

7°C

Humidity 88%
Wind Speed WNW 0 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 41°F (5°C)
Visibility NA
Last update 18 Apr 11:30 PM PDT
Extended Forecast for

4 Miles SSW Onalaska WA

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 74. Light and variable wind.

    High: 74 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 46. West wind around 5 mph becoming calm  in the evening.

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Calm wind.
Sunday
Partly sunny, with a high near 74. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 74. Light and variable wind.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 46. West wind around 5 mph becoming calm in the evening.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 55.
Wednesday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 42.
Thursday
A slight chance of rain. Partly sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Onalaska WA
 46.52°N 122.75°W (Elev. 423 ft)
11:26 pm PDT Apr 18, 2026
11pm PDT Apr 18, 2026-6pm PDT Apr 25, 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