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

Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

81°F

27°C

Humidity 32%
Wind Speed NW 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Jun 11:20 AM PDT
Extended Forecast for

Prosser WA

Heat Advisory June 30, 09:00am until July 1, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 92. Northeast wind 5 to 7 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. Northeast wind around 6 mph becoming west after midnight.

    Low: 59 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. West wind around 6 mph becoming north in the morning.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Light and variable wind becoming northwest 5 to 7 mph after midnight.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. West wind 5 to 7 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 92. Northeast wind 5 to 7 mph.
Tonight
Clear, with a low around 59. Northeast wind around 6 mph becoming west after midnight.
Monday
Sunny and hot, with a high near 99. West wind around 6 mph becoming north in the morning.
Monday Night
Mostly clear, with a low around 64. Light and variable wind becoming northwest 5 to 7 mph after midnight.
Tuesday
Sunny and hot, with a high near 101. West wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 54.
Independence Day
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 91.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
Last Update:
10:15 am PDT Jun 29, 2025
Forecast Valid:
11am PDT Jun 29, 2025-6pm PDT Jul 5, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation