Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

CHEHALIS (CLSW1)

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

NA

48°F

9°C

Humidity 69%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 13 Apr 08:09 PM PDT
Extended Forecast for

6 Miles SE Napavine WA

  • Tonight

    Tonight: A 40 percent chance of rain, mainly between 1am and 5am.  Mostly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 10am.  High near 48. South wind 6 to 11 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 34. South southwest wind 5 to 10 mph becoming light southwest  after midnight.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain, then showers and possibly a thunderstorm after 11am.  High near 48. Calm wind becoming west around 6 mph in the afternoon.  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: Rain likely before 11pm, then a slight chance of rain and snow.  Mostly cloudy, with a low around 31. West wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of rain after 11am.  Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly between 1am and 5am. Mostly cloudy, with a low around 40. Light and variable wind.
Tuesday
Rain, mainly after 10am. High near 48. South wind 6 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 34. South southwest wind 5 to 10 mph becoming light southwest after midnight. 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. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain likely before 11pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
A 30 percent chance of rain after 11am. Partly sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly cloudy, with a high near 57.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42.
Sunday
Rain likely. Mostly cloudy, with a high near 55.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 39.
Monday
A chance of rain. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Napavine WA
 46.53°N 122.81°W (Elev. 417 ft)
11:27 am PDT Apr 13, 2026
8pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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