Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

51°F

11°C

Humidity 79%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 31 Aug 02:53 AM PDT
Extended Forecast for

4 Miles NNW West Richland WA

  • Overnight

    Overnight: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Light north wind increasing to 5 to 9 mph in the morning.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 60. Northwest wind 6 to 9 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 88. Light and variable wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 88 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 11pm.  Mostly cloudy, with a low around 58. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 11am.  Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely.  Cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Thursday

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

    High: 73 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 88. Light north wind increasing to 5 to 9 mph in the morning.
Monday Night
Increasing clouds, with a low around 60. Northwest wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 88. Light and variable wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 58. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Wednesday
A 30 percent chance of showers before 11am. Partly sunny, with a high near 77.
Wednesday Night
Showers likely. Cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 48.
Friday
A slight chance of showers before 11am. Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
A slight chance of showers. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW West Richland WA
 46.38°N 119.42°W (Elev. 499 ft)
2:41 am PDT Aug 31, 2026
3am PDT Aug 31, 2026-6pm PDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database