Thunderstorms and Heavy Rain Possible in the Northern and Central Plains and New Mexico; Dangerous Heat Continues

Severe thunderstorms, capable of producing damaging winds and isolated large hail, and heavy rainfall are possible across the northern and central Plains. Monsoonal thunderstorms may produce heavy rainfall and possible flash flooding across New Mexico. Dangerous, long duration heat will continue over much of the central and eastern U.S. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 564.0ft.

NA

79°F

26°C

Humidity 51%
Wind Speed W 2 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 59°F (15°C)
Visibility NA
Heat Index80°F (27°C)
Last update 29 Jul 12:30 PM PDT
Extended Forecast for

4 Miles SSE Onalaska WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Northwest wind 7 to 10 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am.  Otherwise, increasing clouds, with a low around 53. Northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A 20 percent chance of showers.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 77. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Showers

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 77.

    High: 77 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Northwest wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 51. Northwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Wednesday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 53. Northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Friday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77.
Friday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 49.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 76.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 72.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 50.
Monday
A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Onalaska WA
 46.52°N 122.69°W (Elev. 413 ft)
8:01 am PDT Jul 29, 2025
12pm PDT Jul 29, 2025-6pm PDT Aug 4, 2025
 
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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