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

Areas of Heavy Rainfall and Heat Early This Week

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and lower Mississippi River Valley today into Thursday. Rainfall totals of 5 to 10 inches are expected. Hot temperatures may cause heat illnesses over central and northern California and the Pacific Northwest through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Chehalis-Centralia Airport (KCLS)

Lat: 46.677°NLon: 122.9827°WElev: 177.0ft.

Clear

88°F

31°C

Humidity 23%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Jun 12:55 PM PDT
Extended Forecast for

3 Miles WSW Chehalis WA

Heat Advisory June 15, 01:06pm until June 16, 05:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 15, 01:06pm until June 16, 05:00am

    NOW until 5:00am Tue

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.

    Low: 56 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Light west southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 49. West wind 6 to 11 mph becoming light west southwest in the evening. Winds could gust as high as 21 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Light west wind.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 97. West northwest wind 3 to 8 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 75. Light west southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Increasing clouds, with a low around 49. West wind 6 to 11 mph becoming light west southwest in the evening. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 79. Light west wind.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 55.
Juneteenth
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Chehalis WA
 46.65°N 123.01°W (Elev. 154 ft)
Last Update:
12:25 pm PDT Jun 15, 2026
Forecast Valid:
1pm PDT Jun 15, 2026-6pm PDT Jun 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation