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

Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

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

Fair

83°F

28°C

Humidity 57%
Wind Speed SE 5 mph
Barometer 29.79 in (1007.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 29 Aug 1:52 pm CDT
Extended Forecast for

Bismarck ND

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 83. East wind around 9 mph.

    High: 83 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. East wind 5 to 9 mph becoming southeast in the afternoon. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 10pm. Low around 53. Southwest wind 5 to 9 mph becoming northwest in the evening. Chance of precipitation is 80%.

    Low: 53 °F

    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. West wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 57. Southeast wind 3 to 6 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 84. Southeast wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 83. East wind around 9 mph.
Tonight
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. East wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. East wind 5 to 9 mph becoming southeast in the afternoon. Chance of precipitation is 20%.
Sunday Night
Showers and thunderstorms, mainly before 10pm. Low around 53. Southwest wind 5 to 9 mph becoming northwest in the evening. Chance of precipitation is 80%.
Monday
Sunny, with a high near 82. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Mostly clear, with a low around 53. West wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 57. Southeast wind 3 to 6 mph.
Wednesday
Sunny, with a high near 84. Southeast wind 5 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers before 1am. Partly cloudy, with a low around 60. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 86. South wind 5 to 9 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 60. North wind around 6 mph becoming southeast after midnight.
Friday
Mostly sunny, with a high near 87. Southeast wind 6 to 11 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bismarck ND
 46.81°N 100.8°W
Last Update:
1:31 pm CDT Aug 29, 2026
Forecast Valid:
2pm CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
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