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 >

Hazardous Weather Conditions

Current conditions at

Jamestown, Jamestown Municipal Airport (KJMS)

Lat: 46.93°NLon: 98.68°WElev: 1499ft.

Overcast

81°F

27°C

Humidity 77%
Wind Speed S 10 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 6 Sep 1:56 pm CDT
Extended Forecast for

Jamestown ND

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 80. Southeast wind around 11 mph, with gusts as high as 21 mph.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between midnight and 1am. Mostly cloudy, with a low around 64. Southeast wind around 11 mph becoming northeast in the evening. Winds could gust as high as 20 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 81. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    T-storms
    Likely and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 62. South wind 8 to 15 mph becoming west after midnight. Winds could gust as high as 28 mph.

    Low: 62 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 37 mph.

    High: 78 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Breezy, with a west wind 20 to 22 mph, with gusts as high as 36 mph.

    Low: 54 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Windy, with a northwest wind 18 to 25 mph, with gusts as high as 37 mph.

    High: 72 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Southwest wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 81 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 80. Southeast wind around 11 mph, with gusts as high as 21 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between midnight and 1am. Mostly cloudy, with a low around 64. Southeast wind around 11 mph becoming northeast in the evening. Winds could gust as high as 20 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 81. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 62. South wind 8 to 15 mph becoming west after midnight. Winds could gust as high as 28 mph.
Tuesday
Sunny, with a high near 78. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 37 mph.
Tuesday Night
Mostly clear, with a low around 54. Breezy, with a west wind 20 to 22 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 72. Windy, with a northwest wind 18 to 25 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly clear, with a low around 49. Northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 81. Southwest wind 6 to 16 mph, with gusts as high as 26 mph.
Thursday Night
Mostly clear, with a low around 56. South wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 74. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 49. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 66. Northwest wind 11 to 18 mph, with gusts as high as 29 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jamestown ND
 46.9°N 98.7°W
Last Update:
1:31 pm CDT Sep 6, 2026
Forecast Valid:
2pm CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
Forecast Discussion
 
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Additional Resources

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