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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

79°F

26°C

Humidity 36%
Wind Speed SSE 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 11:35 AM PDT
Extended Forecast for

Kennewick WA

  • Today

    Today: Sunny, with a high near 86. Southwest wind around 7 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. Southwest wind around 6 mph.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 89. Southwest wind 5 to 7 mph.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. Southwest wind 6 to 8 mph.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southwest wind 3 to 6 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Southwest wind around 7 mph.
Tonight
Mostly cloudy, with a low around 65. Southwest wind around 6 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 89. Southwest wind 5 to 7 mph.
Monday Night
Clear, with a low around 63. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 90. Southwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 95.
Friday Night
Clear, with a low around 64.
Saturday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kennewick WA
 46.21°N 119.19°W (Elev. 512 ft)
Last Update:
10:15 am PDT Aug 17, 2025
Forecast Valid:
11am PDT Aug 17, 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