Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Bismarck, Bismarck Municipal Airport (KBIS)

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

Mostly Cloudy and Breezy

77°F

25°C

Humidity 45%
Wind Speed W 23 G 29 mph
Barometer 29.69 in (1005.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 30 Jun 2:52 pm CDT
Extended Forecast for

Napoleon ND

Wind Advisory June 30, 03:16pm until June 30, 07:00pm
Click here for hazard details and duration
...
  •  
    Wind Advisory June 30, 03:16pm until June 30, 07:00pm

    NOW until 7:00pm Tue

    Wind Advisory

  • Tonight

    Low: 57 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 81. South wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 18 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. West wind 5 to 9 mph becoming light and variable  in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 86. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 60. East wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. East wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Partly cloudy, with a low around 61. East wind 8 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Independence Day

    Independence Day: A chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 83. Southeast wind 7 to 9 mph becoming southwest in the afternoon.

    High: 83 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. Breezy, with a west wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 36 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 81. South wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 57. West wind 5 to 9 mph becoming light and variable in the evening.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Southeast wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. East wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. East wind 10 to 13 mph, with gusts as high as 20 mph.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 61. East wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Independence Day
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 83. Southeast wind 7 to 9 mph becoming southwest in the afternoon.
Saturday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 60. Northeast wind 5 to 8 mph becoming south after midnight.
Sunday
Mostly sunny, with a high near 85. South wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 63. Southeast wind 8 to 10 mph.
Monday
Mostly sunny, with a high near 85. Southeast wind 10 to 14 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 64. Southeast wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Napoleon ND
 46.5°N 99.76°W
2:01 pm CDT Jun 30, 2026
3pm CDT Jun 30, 2026-6pm CDT Jul 7, 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