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

Heavy Rain Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

Heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding to the Desert Southwest into Sunday. The tropical wave (AL94) continues to bring heavy rainfall to Puerto Rico and the US Virgin Islands. The close proximity of Tropical Storm Humberto and AL94 could lead to interaction between them, but details of their track and intensity forecasts remain uncertain Read More >

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

55°F

13°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 48°F (9°C)
Visibility 8.00 mi
Last update 25 Sep 08:20 AM PDT
Extended Forecast for

8 Miles NNE Pasco WA

Red Flag Warning September 25, 01:00pm until September 25, 11:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Widespread haze before 11am. Sunny, with a high near 83. South wind 5 to 8 mph becoming west in the afternoon.

    High: 83 °F

    Haze then
    Sunny

  • Tonight

    Tonight: Widespread haze between 8pm and 11pm. Partly cloudy, with a low around 47. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Haze then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73. South wind around 7 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48. South wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 73.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
Widespread haze before 11am. Sunny, with a high near 83. South wind 5 to 8 mph becoming west in the afternoon.
Tonight
Widespread haze between 8pm and 11pm. Partly cloudy, with a low around 47. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 73. South wind around 7 mph.
Friday Night
Mostly clear, with a low around 48. South wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 78. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 73.
Monday Night
A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 52.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Pasco WA
 46.36°N 119.08°W (Elev. 545 ft)
Last Update:
4:20 am PDT Sep 25, 2025
Forecast Valid:
8am PDT Sep 25, 2025-6pm PDT Oct 1, 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