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

Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Severe thunderstorms producing damaging winds, hail and possibly a few tornadoes are expected across parts of the central Plains and the Missouri Valley. Heavy rainfall and flash flooding is also expected in the area. Thunderstorms and heavy rain may also bring additional flooding impacts to the central Appalachians. High temperatures and critical fire weather conditions expected in the Southwest. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

84°F

29°C

Humidity 23%
Wind Speed SW 8 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Jun 03:00 PM PDT
Extended Forecast for

18 Miles SE Mattawa WA

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. West wind 13 to 18 mph, with gusts as high as 29 mph.

    Low: 52 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83. West wind 5 to 8 mph becoming south in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. South wind 6 to 10 mph becoming west in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers. Partly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 58. West wind 8 to 11 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 88. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 52. West wind 13 to 18 mph, with gusts as high as 29 mph.
Juneteenth
Mostly sunny, with a high near 83. West wind 5 to 8 mph becoming south in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. South wind 6 to 10 mph becoming west in the evening.
Friday
Partly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 50.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 70.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Partly sunny, with a high near 75.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 53.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles SE Mattawa WA
 46.59°N 119.61°W (Elev. 600 ft)
Last Update:
1:07 pm PDT Jun 17, 2025
Forecast Valid:
3pm PDT Jun 17, 2025-6pm PDT Jun 24, 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