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

Hazardous Weather Conditions

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

Lat: 46.78°NLon: 100.76°WElev: 1677ft.

Overcast

80°F

27°C

Humidity 67%
Wind Speed SW 15 G 20 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 2:52 pm CDT
Extended Forecast for

Napoleon ND

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 75. West wind around 15 mph, with gusts as high as 32 mph.

    High: 75 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 61. Northwest wind 7 to 10 mph.

    Low: 61 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. North wind 7 to 9 mph becoming west in the morning.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 63. North wind around 6 mph becoming southeast after midnight.

    Low: 63 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 83. South wind 6 to 8 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Southeast wind 7 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. South wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. South wind 15 to 18 mph, with gusts as high as 26 mph.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 14 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 75. West wind around 15 mph, with gusts as high as 32 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 61. Northwest wind 7 to 10 mph.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. North wind 7 to 9 mph becoming west in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 63. North wind around 6 mph becoming southeast after midnight.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 83. South wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 64. Southeast wind 7 to 10 mph.
Wednesday
Sunny, with a high near 85. South wind 10 to 18 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 67. South wind 15 to 18 mph, with gusts as high as 26 mph.
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South wind 14 to 16 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 56. North wind 10 to 14 mph.
Friday
Sunny, with a high near 74. Northwest wind 9 to 16 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 50. Northwest wind 8 to 14 mph.
Saturday
Sunny, with a high near 67. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napoleon ND
 46.52°N 99.76°W
Last Update:
2:49 pm CDT Aug 17, 2025
Forecast Valid:
3pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
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