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

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Yakima Air Terminal - McAllister Field (KYKM)

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

Overcast

57°F

14°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 06 Sep 02:00 PM PDT
Extended Forecast for

Union Gap WA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 67. West wind around 6 mph.

    High: 67 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. North wind 3 to 6 mph.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 67. West wind around 6 mph.
Tonight
A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 52. Calm wind.
Labor Day
Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 50. North wind 3 to 6 mph.
Tuesday
Sunny, with a high near 79. Light and variable wind.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Sunny, with a high near 78.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 52.
Saturday
A slight chance of showers. Mostly sunny, with a high near 76.
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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:
1:02 pm PDT Sep 6, 2026
Forecast Valid:
2pm PDT Sep 6, 2026-6pm PDT Sep 12, 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