Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

70°F

21°C

Humidity 14%
Wind Speed SW 14 G 28 mph
Barometer 29.74 in (1001.6 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 30 Mar 3:53 pm MDT
Extended Forecast for

4 Miles SW Mount Rushmore SD

Red Flag Warning March 30, 03:58pm until March 30, 08:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning March 30, 03:58pm until March 30, 08:00pm

    NOW until 8:00pm Mon

    Red Flag Warning

  • Tonight

    Low: 27 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow.  Cloudy, with a high near 35. Wind chill values as low as 17. North wind 7 to 10 mph becoming east in the afternoon. Winds could gust as high as 25 mph.  New snow accumulation of around an inch possible.

    High: 35 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely.  Cloudy, with a low around 22. Wind chill values as low as 12. Southeast wind around 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow Likely

  • Wednesday

    Wednesday: Snow likely, mainly after noon.  Cloudy, with a high near 38. Wind chill values as low as 14. Southeast wind 8 to 10 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight.  Cloudy, with a low around 25. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely before 1pm, then rain likely between 1pm and 5pm, then rain and snow likely after 5pm.  Partly sunny, with a high near 44. South wind 6 to 9 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 44 °F

    Chance Snow
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain and snow, becoming all snow after midnight.  Low around 26. East wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 80%.

    Low: 26 °F

    Rain/Snow
    then Snow

  • Friday

    Friday: Snow.  Mostly cloudy, with a high near 33. West wind 13 to 15 mph becoming north in the morning. Winds could gust as high as 31 mph.

    High: 33 °F

    Snow

Detailed Forecast

Tonight
A slight chance of rain before midnight, then a chance of rain and snow between midnight and 1am, then a chance of snow after 1am. Mostly cloudy, with a low around 27. Wind chill values as low as 19. West wind 13 to 16 mph becoming north in the evening. Winds could gust as high as 37 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of snow. Cloudy, with a high near 35. Wind chill values as low as 17. North wind 7 to 10 mph becoming east in the afternoon. Winds could gust as high as 25 mph. New snow accumulation of around an inch possible.
Tuesday Night
Snow likely. Cloudy, with a low around 22. Wind chill values as low as 12. Southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow likely, mainly after noon. Cloudy, with a high near 38. Wind chill values as low as 14. Southeast wind 8 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before midnight. Cloudy, with a low around 25. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Snow likely before 1pm, then rain likely between 1pm and 5pm, then rain and snow likely after 5pm. Partly sunny, with a high near 44. South wind 6 to 9 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Rain and snow, becoming all snow after midnight. Low around 26. East wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Friday
Snow. Mostly cloudy, with a high near 33. West wind 13 to 15 mph becoming north in the morning. Winds could gust as high as 31 mph.
Friday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 20.
Saturday
A chance of snow, mainly before noon. Mostly sunny, with a high near 42.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
3:38 pm MDT Mar 30, 2026
3pm MDT Mar 30, 2026-6pm MDT Apr 6, 2026
 
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Additional Resources

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