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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Jamestown, Jamestown Municipal Airport (KJMS)

Lat: 46.93°NLon: 98.68°WElev: 1499ft.

Fair

57°F

14°C

Humidity 78%
Wind Speed S 5 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 27 Aug 11:56 pm CDT
Extended Forecast for

Jamestown ND

  • Overnight

    Overnight: Partly cloudy, with a low around 52. Southeast wind 7 to 9 mph.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 81. Southeast wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Increasing clouds, with a low around 61. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers between 9am and 10am. Cloudy, then gradually becoming mostly sunny, with a high near 83. East wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 82. Northeast wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. East wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: Sunny, with a high near 80. West wind 10 to 17 mph, with gusts as high as 30 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. West wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. Southeast wind 7 to 9 mph.
Friday
Partly sunny, with a high near 81. Southeast wind 8 to 15 mph, with gusts as high as 25 mph.
Friday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Increasing clouds, with a low around 61. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
A slight chance of showers between 9am and 10am. Cloudy, then gradually becoming mostly sunny, with a high near 83. East wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind 6 to 8 mph. Chance of precipitation is 70%.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 82. Northeast wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. East wind 8 to 10 mph becoming west after midnight. Chance of precipitation is 70%.
Monday
Sunny, with a high near 80. West wind 10 to 17 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 55. West wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 81. Northwest wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 56. North wind around 6 mph becoming southeast after midnight.
Wednesday
Mostly sunny, with a high near 84. Southeast wind 6 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. South wind 8 to 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jamestown ND
 46.92°N 98.67°W
Last Update:
12:01 am CDT Aug 28, 2026
Forecast Valid:
12am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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