Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

CHEHALIS (CLSW1)

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

NA

89°F

32°C

Humidity 26%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index86°F (30°C)
Last update 15 Jul 06:09 PM PDT
Extended Forecast for

5 Miles ESE Napavine WA

Heat Advisory July 15, 07:15pm until July 16, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 15, 07:15pm until July 16, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Tonight

    Low: 58 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 50. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, sunny, with a high near 85. Light west northwest wind.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Tonight
Clear, with a low around 58. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 50. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 85. Light west northwest wind.
Thursday Night
Mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 51.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 74.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 51.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Napavine WA
 46.55°N 122.82°W (Elev. 440 ft)
2:25 pm PDT Jul 15, 2025
7pm PDT Jul 15, 2025-6pm PDT Jul 22, 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