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

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

50°F

10°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 09 Sep 04:53 AM PDT
Extended Forecast for

Pasco WA

  • Today

    Today: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. South wind 3 to 6 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 86. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77. Southwest wind 3 to 5 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers before 11am. Partly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind.
Tonight
Increasing clouds, with a low around 53. South wind 3 to 6 mph.
Thursday
Mostly cloudy, with a high near 86. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 49. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 77. Southwest wind 3 to 5 mph.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 73.
Saturday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers before 11am. Partly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.26°N 119.11°W (Elev. 400 ft)
Last Update:
4:06 am PDT Sep 9, 2026
Forecast Valid:
5am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
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