Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

45°F

7°C

Humidity 37%
Wind Speed W 6 mph
Barometer 30.19 in (1021.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 12 Jan 9:53 am MST
Extended Forecast for

3 Miles SSE Custer County Airport SD

  • Today

    Today: Mostly sunny, with a high near 54. West wind around 10 mph, with gusts as high as 28 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. West wind around 9 mph, with gusts as high as 24 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before 8am, then a chance of rain.  Partly sunny, with a high near 48. Northwest wind 11 to 14 mph, with gusts as high as 33 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 11pm.  Partly cloudy, with a low around 28. Northwest wind 7 to 11 mph, with gusts as high as 32 mph.  Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. Northwest wind 5 to 7 mph, with gusts as high as 17 mph.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Light west wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 31 mph.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 44. Northwest wind 14 to 17 mph, with gusts as high as 39 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Northwest wind around 18 mph, with gusts as high as 45 mph.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 29. Blustery.

    High: 29 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Today
Mostly sunny, with a high near 54. West wind around 10 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, with a low around 37. West wind around 9 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of snow before 8am, then a chance of rain. Partly sunny, with a high near 48. Northwest wind 11 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
A slight chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 11pm. Partly cloudy, with a low around 28. Northwest wind 7 to 11 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 44. Northwest wind 5 to 7 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 31. Light west wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 31 mph.
Thursday
Sunny, with a high near 44. Northwest wind 14 to 17 mph, with gusts as high as 39 mph.
Thursday Night
Partly cloudy, with a low around 19. Northwest wind around 18 mph, with gusts as high as 45 mph.
Friday
Mostly sunny, with a high near 29. Blustery.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Custer County Airport SD
 43.69°N 103.6°W (Elev. 5400 ft)
10:06 am MST Jan 12, 2026
10am MST Jan 12, 2026-6pm MST Jan 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

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