Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

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

Fair

79°F

26°C

Humidity 38%
Wind Speed NW 9 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 25 Aug 7:52 pm CDT
Extended Forecast for

Napoleon ND

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind becoming northwest 5 to 9 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Southeast wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 82. Breezy, with a southeast wind 16 to 23 mph, with gusts as high as 34 mph.

    High: 82 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 60. Southeast wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 60 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 83. South wind 7 to 10 mph becoming northeast in the afternoon.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 57. Northeast wind 5 to 9 mph.

    Low: 57 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind becoming northwest 5 to 9 mph after midnight.
Wednesday
Sunny, with a high near 77. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 51. North wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. Southeast wind 8 to 14 mph, with gusts as high as 23 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Breezy, with a southeast wind 16 to 23 mph, with gusts as high as 34 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 60. Southeast wind 9 to 17 mph, with gusts as high as 26 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. South wind 7 to 10 mph becoming northeast in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. Northeast wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 80. North wind 6 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 53. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 78. West wind 10 to 17 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 53. West wind 7 to 11 mph becoming southeast in the evening.
Tuesday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Napoleon ND
 46.5°N 99.76°W
7:36 pm CDT Aug 25, 2026
8pm CDT Aug 25, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database