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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Partly Cloudy

72°F

22°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 16 Aug 10:53 PM PDT
Extended Forecast for

19 Miles ESE Mattawa WA

  • Tonight

    Tonight: Mostly clear, with a low around 59. West wind around 8 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. West wind around 6 mph becoming south in the morning.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming south in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 90. Southwest wind 5 to 7 mph.

    High: 90 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. West wind 7 to 9 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. West wind around 8 mph.
Sunday
Sunny, with a high near 86. West wind around 6 mph becoming south in the morning.
Sunday Night
Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming south in the evening.
Monday
Partly sunny, then gradually becoming sunny, with a high near 90. Southwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 60. West wind 7 to 9 mph.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 91.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 95.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
19 Miles ESE Mattawa WA
 46.59°N 119.58°W (Elev. 600 ft)
Last Update:
10:15 pm PDT Aug 16, 2025
Forecast Valid:
11pm PDT Aug 16, 2025-6pm PDT Aug 23, 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