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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave is underway for the Intermountain West, Northern Plains, and Upper Great Lakes, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. In southwest Texas, excessive rainfall may bring a risk for potentially life-threatening flash and arroyo flooding through Thursday. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

93°F

34°C

Humidity 17%
Wind Speed SSE 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 14 Jul 02:20 PM PDT
Extended Forecast for

Pasco WA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 95. Northeast wind around 5 mph.

    High: 95 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming light and variable.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 11am. Mostly sunny, with a high near 97. Southwest wind 3 to 8 mph.

    High: 97 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Mostly clear, with a low around 63.

    Low: 63 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 95. Northeast wind around 5 mph.
Tonight
Increasing clouds, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy through mid morning, then gradual clearing and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming light and variable.
Thursday
A 30 percent chance of showers before 11am. Mostly sunny, with a high near 97. Southwest wind 3 to 8 mph.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly clear, with a low around 63.
Friday
Sunny, with a high near 93.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 95.
Saturday Night
Clear, with a low around 64.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.26°N 119.14°W (Elev. 469 ft)
Last Update:
11:46 am PDT Jul 14, 2026
Forecast Valid:
2pm PDT Jul 14, 2026-6pm PDT Jul 20, 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