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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Overcast

64°F

18°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 10:55 AM PDT
Extended Forecast for

Rochester WA

  • Today

    Today: Mostly sunny, with a high near 72. West wind 5 to 8 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of rain after 5am. Increasing clouds, with a low around 51. Southwest wind 6 to 9 mph.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain between 8am and noon. Partly sunny, with a high near 68. West wind 5 to 10 mph.

    High: 68 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Southwest wind 5 to 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 70. Light west wind.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, mainly after 11am. Partly sunny, with a high near 69.

    High: 69 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 72. West wind 5 to 8 mph.
Tonight
A 30 percent chance of rain after 5am. Increasing clouds, with a low around 51. Southwest wind 6 to 9 mph.
Saturday
A 30 percent chance of rain between 8am and noon. Partly sunny, with a high near 68. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 49. Southwest wind 5 to 10 mph.
Sunday
Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 70. Light west wind.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 75.
Monday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 52.
Tuesday
A chance of rain, mainly after 11am. Partly sunny, with a high near 69.
Tuesday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.
Wednesday
Rain likely. Mostly cloudy, with a high near 63.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Thursday
Rain likely. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rochester WA
 46.81°N 123.09°W (Elev. 200 ft)
Last Update:
11:26 pm PDT Aug 27, 2026
Forecast Valid:
11am PDT Aug 28, 2026-6pm PDT Sep 3, 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