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

Yakima Air Terminal - McAllister Field (KYKM)

Lat: 46.56402°NLon: 120.53484°WElev: 1043.0ft.

Clear

46°F

8°C

Humidity 28%
Wind Speed S 6 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 30 Mar 07:20 PM PDT
Extended Forecast for

Union Gap WA

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Light and variable wind.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. Light and variable wind.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Light southeast wind.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 54. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 31. South wind 6 to 8 mph becoming west after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain
    then Slight
    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 54. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 35. Light southeast wind.
Wednesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 54. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 31. South wind 6 to 8 mph becoming west after midnight. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union Gap WA
 46.56°N 120.47°W (Elev. 997 ft)
Last Update:
4:15 pm PDT Mar 30, 2026
Forecast Valid:
7pm PDT Mar 30, 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