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

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

27°F

-3°C

Humidity 79%
Wind Speed N 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 31 Mar 02:25 AM PDT
Extended Forecast for

Pasco WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. Light northwest wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. Calm wind.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Increasing clouds, with a low around 39. Light southeast wind.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers. High near 58. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly before 11pm. Low around 38. Southwest wind 9 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Light northwest wind.
Tuesday
Mostly cloudy, with a high near 55. Calm wind.
Tuesday Night
A 20 percent chance of showers after 2am. Increasing clouds, with a low around 39. Light southeast wind.
Wednesday
Showers. High near 58. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers, mainly before 11pm. Low around 38. Southwest wind 9 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.26°N 119.11°W (Elev. 400 ft)
Last Update:
2:30 am PDT Mar 31, 2026
Forecast Valid:
2am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
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