Fire Weather Concerns in the Intermountain West into the Plains

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the Plains though early this week. Another elevated risk is possible across the central Appalachians. A rapid warm-up is in the forecast beginning Monday across the central and eastern U.S.. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

40°F

4°C

Humidity 45%
Wind Speed Calm
Barometer 29.86 in (1007.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 29 Mar 11:53 pm MDT
Extended Forecast for

3 Miles NNE Keystone SD

Red Flag Warning March 30, 12:00pm until March 30, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  • Overnight

    Overnight: Mostly clear, with a temperature rising to around 52 by 5am. Southwest wind around 6 mph becoming west. Winds could gust as high as 16 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 73. West wind 5 to 15 mph, with gusts as high as 36 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: 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 31. West wind 9 to 15 mph becoming north in the evening. Winds could gust as high as 33 mph.  Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow.  Mostly cloudy, with a high near 42. North wind 7 to 9 mph becoming east in the afternoon. Winds could gust as high as 22 mph.

    High: 42 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 25. Southeast wind around 7 mph, with gusts as high as 20 mph.  New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow likely, mainly before noon.  Mostly cloudy, with a high near 41. Southeast wind 7 to 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow.  Mostly cloudy, with a low around 29. South wind 7 to 9 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Chance Snow

  • Thursday

    Thursday: A slight chance of rain and snow before noon, then a chance of rain.  Mostly sunny, with a high near 59. South wind 7 to 13 mph, with gusts as high as 32 mph.

    High: 59 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely before midnight, then rain and snow likely.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly clear, with a temperature rising to around 52 by 5am. Southwest wind around 6 mph becoming west. Winds could gust as high as 16 mph.
Monday
Mostly sunny, with a high near 73. West wind 5 to 15 mph, with gusts as high as 36 mph.
Monday Night
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 31. West wind 9 to 15 mph becoming north in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 42. North wind 7 to 9 mph becoming east in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25. Southeast wind around 7 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly before noon. Mostly cloudy, with a high near 41. Southeast wind 7 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 29. South wind 7 to 9 mph, with gusts as high as 23 mph.
Thursday
A slight chance of rain and snow before noon, then a chance of rain. Mostly sunny, with a high near 59. South wind 7 to 13 mph, with gusts as high as 32 mph.
Thursday Night
Rain likely before midnight, then rain and snow likely. Mostly cloudy, with a low around 35.
Friday
Snow likely. Mostly cloudy, with a high near 45.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26.
Saturday
A chance of snow. Partly sunny, with a high near 41.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Keystone SD
 43.92°N 103.41°W (Elev. 4708 ft)
10:37 pm MDT Mar 29, 2026
12am MDT Mar 30, 2026-6pm MDT Apr 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database