Storms and Heavy Rainfall in the Plains and Southern Appalachians; Hazardous Heat in the South and Southeast

Severe thunderstorms with heavy rainfall will be possible across the southern Appalachians through this evening. Thunderstorms are also expected from the northern/central Plains into portions of the Midwest through Tuesday, and severe storms may produce large hail and damaging wind gusts. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

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

Clear

79°F

26°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 02:35 PM PDT
Extended Forecast for

4 Miles WSW Rochester WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. Northwest wind 3 to 5 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. West northwest wind 3 to 6 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming west around 6 mph in the afternoon.

    High: 76 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 56. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of rain before 11am.  Mostly cloudy, with a high near 75.

    High: 75 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 80. Northwest wind 3 to 5 mph.
Tonight
Increasing clouds, with a low around 55. West northwest wind 3 to 6 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 56. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Mostly cloudy, with a high near 77. Calm wind.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of rain before 11am. Mostly cloudy, with a high near 75.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 56.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly cloudy, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Rochester WA
 46.8°N 123.18°W (Elev. 200 ft)
11:26 am PDT Aug 17, 2026
2pm PDT Aug 17, 2026-6pm PDT Aug 23, 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