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Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

90°F

32°C

Humidity 32%
Wind Speed N 0 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 24 Jul 12:55 PM PDT
Extended Forecast for

Prosser WA

Red Flag Warning July 25, 10:00am until July 25, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • This Afternoon

    This Afternoon: Patchy smoke. Sunny and hot, with a high near 98. Calm wind becoming south around 5 mph.

    High: 98 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke before 8pm. Clear, with a low around 62. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 62 °F

    Patchy Smoke
    then Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 29 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West wind 12 to 17 mph becoming light southwest after midnight. Winds could gust as high as 31 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Patchy smoke. Sunny and hot, with a high near 98. Calm wind becoming south around 5 mph.
Tonight
Patchy smoke before 8pm. Clear, with a low around 62. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 91. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 29 mph.
Saturday Night
Mostly clear, with a low around 55. West wind 12 to 17 mph becoming light southwest after midnight. Winds could gust as high as 31 mph.
Sunday
Sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 89.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
11:46 am PDT Jul 24, 2026
Forecast Valid:
1pm PDT Jul 24, 2026-6pm PDT Jul 30, 2026
 
Forecast Discussion
 
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Additional Resources

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