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

Jamestown, Jamestown Municipal Airport (KJMS)

Lat: 46.93°NLon: 98.68°WElev: 1499ft.

Fair

57°F

14°C

Humidity 87%
Wind Speed S 3 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 17 Aug 12:56 am CDT
Extended Forecast for

Sibley ND

  • Overnight

    Overnight: Partly cloudy, with a low around 55. South southwest wind 3 to 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Scattered showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 81. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. Northwest wind 8 to 13 mph becoming light north northwest after midnight.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 75. Light northwest wind increasing to 6 to 11 mph in the morning.

    High: 75 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 54. South wind around 6 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Southwest wind 6 to 16 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. West southwest wind 7 to 10 mph.

    Low: 58 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. South southwest wind 3 to 6 mph.
Monday
Scattered showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 81. South southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 51. Northwest wind 8 to 13 mph becoming light north northwest after midnight.
Tuesday
A 20 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 75. Light northwest wind increasing to 6 to 11 mph in the morning.
Tuesday Night
Mostly clear, with a low around 48. North northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the morning.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 54. South wind around 6 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Southwest wind 6 to 16 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. West southwest wind 7 to 10 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 82. North northwest wind 8 to 17 mph.
Friday Night
Mostly clear, with a low around 54. North wind 5 to 14 mph.
Saturday
Mostly sunny, with a high near 80. North northwest wind 5 to 11 mph becoming northeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 56. East wind 7 to 10 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 83. South southeast wind 7 to 17 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sibley ND
 47.21°N 97.97°W
Last Update:
12:36 am CDT Aug 17, 2026
Forecast Valid:
1am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation