Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Overcast

68°F

20°C

Humidity 68%
Wind Speed SSW 9 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 27 Aug 12:55 PM PDT
Extended Forecast for

3 Miles WSW Rochester WA

  • This Afternoon

    This Afternoon: A 20 percent chance of rain before 2pm.  Partly sunny, with a high near 69. West southwest wind around 7 mph.

    High: 69 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Increasing clouds, with a low around 54. West wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 4am.  Mostly cloudy, with a low around 52. West southwest wind around 8 mph.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 11am.  Partly sunny, with a high near 68. West wind 5 to 8 mph.

    High: 68 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 2pm. Partly sunny, with a high near 69. West southwest wind around 7 mph.
Tonight
Increasing clouds, with a low around 54. West wind around 6 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 52. West southwest wind around 8 mph.
Saturday
A 30 percent chance of rain, mainly after 11am. Partly sunny, with a high near 68. West wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Partly sunny, with a high near 73.
Monday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 53.
Tuesday
A chance of rain. Mostly cloudy, with a high near 70.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Wednesday
Rain likely. Mostly cloudy, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Rochester WA
 46.8°N 123.15°W (Elev. 144 ft)
12:56 pm PDT Aug 27, 2026
1pm PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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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