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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

35°F

2°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 15 Oct 08:53 AM PDT
Extended Forecast for

3 Miles WSW West Pasco WA

  • Today

    Today: Patchy frost before 11am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.

    High: 61 °F

    Patchy Frost
    then Sunny

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, mostly clear, with a low around 37. South wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Thursday

    Thursday: Patchy frost before 8am. Otherwise, increasing clouds, with a high near 63. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 63 °F

    Patchy Frost
    then
    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Southwest wind 7 to 9 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 66. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy frost before 11am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Patchy frost after 5am. Otherwise, mostly clear, with a low around 37. South wind around 5 mph becoming calm in the evening.
Thursday
Patchy frost before 8am. Otherwise, increasing clouds, with a high near 63. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 44. Southwest wind 7 to 9 mph.
Friday
Sunny, with a high near 66. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 50.
Sunday
A 50 percent chance of showers. Mostly sunny, with a high near 62.
Sunday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW West Pasco WA
 46.23°N 119.23°W (Elev. 407 ft)
Last Update:
4:20 am PDT Oct 15, 2025
Forecast Valid:
9am PDT Oct 15, 2025-6pm PDT Oct 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation