National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Excessive Rainfall Thursday

Severe thunderstorms posing a risk for strong gusts and/or large hail are possible across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic Thursday afternoon and evening. Excessive rainfall may bring flash and urban flooding over the Mid-Mississippi and Ohio Valleys, and Mid-Atlantic on Thursday. Read More >

Current conditions at

CHEHALIS (CLSW1)

Lat: 46.61°NLon: 122.90833°WElev: 262.0ft.

NA

52°F

11°C

Humidity 81%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 09 Jul 01:09 AM PDT
Extended Forecast for

6 Miles SW Onalaska WA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a steady temperature around 47. Calm wind.

    Low: 47 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 76 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 48. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 48 °F

    Clear then
    Patchy Fog

  • Friday

    Friday: Mostly cloudy, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Areas of fog after 5am. Otherwise, mostly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Cloudy
    then Areas
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a steady temperature around 47. Calm wind.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 48. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 72. Calm wind.
Friday Night
Areas of fog after 5am. Otherwise, mostly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Onalaska WA
 46.53°N 122.81°W (Elev. 417 ft)
Last Update:
11:26 pm PDT Jul 8, 2026
Forecast Valid:
2am PDT Jul 9, 2026-6pm PDT Jul 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation