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

Washington Regional Airport (KFYG)

Lat: 38.59°NLon: 90.99°WElev: 489ft.

Fair

91°F

33°C

Humidity 52%
Wind Speed Vrbl 6 mph
Barometer 29.93 in
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Heat Index98°F (37°C)
Last update 6 Sep 4:55 pm CDT
Extended Forecast for

3 Miles SSW Washington MO

  • Tonight

    Tonight: Partly cloudy, with a low around 64. East wind 3 to 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 89. Light east wind.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Light south wind.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. Southeast wind 3 to 6 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 60.

    Low: 60 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. East wind 3 to 5 mph.
Labor Day
Sunny, with a high near 89. Light east wind.
Monday Night
Partly cloudy, with a low around 62. Calm wind.
Tuesday
Mostly sunny, with a high near 95. Light south wind.
Tuesday Night
Mostly clear, with a low around 71. Southeast wind 3 to 6 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Wednesday Night
Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 83.
Thursday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 60.
Friday
A 20 percent chance of showers before 1pm. Sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 63.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 65.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Washington MO
 38.51°N 91.06°W (Elev. 699 ft)
Last Update:
2:26 pm CDT Sep 6, 2026
Forecast Valid:
4pm CDT Sep 6, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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