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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

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

Fair

78°F

26°C

Humidity 42%
Wind Speed W 7 mph
Barometer 29.97 in (1014.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 10:52 am CDT
Extended Forecast for

Bismarck ND

  • Today

    Today: Mostly sunny, with a high near 86. Northwest wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85. Light northwest wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. North wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59. Southeast wind 6 to 9 mph.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Southeast wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 82 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 61 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 87. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 86. Northwest wind 8 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 57. Northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 85. Light northwest wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 55. North wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 59. Southeast wind 6 to 9 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. Southeast wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind 8 to 15 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 87. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 60. West wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 84. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 56. Northwest wind 5 to 10 mph becoming light north after midnight.
Wednesday
Sunny, with a high near 83. Calm wind becoming north 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bismarck ND
 46.81°N 100.8°W
Last Update:
10:36 am CDT Aug 20, 2026
Forecast Valid:
11am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation