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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

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

NA

47°F

8°C

Humidity 88%
Wind Speed WNW 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 44°F (7°C)
Visibility NA
Last update 12 Apr 11:15 PM PDT
Extended Forecast for

Onalaska WA

  • Tonight

    Tonight: A 40 percent chance of rain, mainly between midnight and 5am. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: Rain likely before 4pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 52. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely

  • Monday Night

    Monday Night: A slight chance of rain before 11pm, then a chance of rain after 1am. Mostly cloudy, with a low around 39. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 48. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 35. South southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain then
    Rain Likely

  • Wednesday

    Wednesday: A chance of rain, then showers and possibly a thunderstorm after 11am. High near 48. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 48 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Showers then
    Chance Rain

  • Thursday

    Thursday: A chance of rain, mainly after 11am. Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly between midnight and 5am. Mostly cloudy, with a low around 44. Calm wind.
Monday
Rain likely before 4pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 52. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of rain before 11pm, then a chance of rain after 1am. Mostly cloudy, with a low around 39. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
Rain. High near 48. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 35. South southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A chance of rain, then showers and possibly a thunderstorm after 11am. High near 48. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then rain, mainly between 8pm and 11pm. Low around 32. Chance of precipitation is 80%.
Thursday
A chance of rain, mainly after 11am. Partly sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 55.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 61.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42.
Sunday
Rain likely. Mostly cloudy, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WA
 46.58°N 122.74°W (Elev. 600 ft)
Last Update:
11:27 pm PDT Apr 12, 2026
Forecast Valid:
11pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation