Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

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

Fair

76°F

24°C

Humidity 54%
Wind Speed SE 7 mph
Barometer 29.96 in (1013.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Aug 11:52 am CDT
Extended Forecast for

Bismarck ND

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 86. South wind 5 to 9 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 59. South wind 6 to 8 mph.

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: 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 18 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Light north wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. North wind 8 to 13 mph becoming light northeast  after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Calm wind becoming east around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58. East wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers.  Mostly cloudy, with a high near 84. Southeast wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 84 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 5 to 9 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 59. South wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 87. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
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 18 mph.
Friday
Sunny, with a high near 87. Light north wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 55. North wind 8 to 13 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 82. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 58. East wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
A slight chance of showers. Mostly cloudy, with a high near 84. Southeast wind 10 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 60. South wind 8 to 14 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 88. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 58. Northwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Bismarck ND
 46.79°N 100.76°W
10:36 am CDT Aug 19, 2026
12pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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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