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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

A Few Clouds

39°F

4°C

Humidity 38%
Wind Speed W 13 G 32 mph
Barometer 30.09 in (1021.0 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 18 Apr 3:53 pm MDT
Extended Forecast for

4 Miles ESE Custer County Airport SD

  • This Afternoon

    This Afternoon: A 30 percent chance of snow showers. Sunny, with a high near 45. Northwest wind around 16 mph, with gusts as high as 34 mph.

    High: 45 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 29. West wind 5 to 15 mph, with gusts as high as 31 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Southeast wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 72. West wind 8 to 10 mph, with gusts as high as 25 mph.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. North wind 5 to 7 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. West wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 22 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Southwest wind 6 to 8 mph becoming northwest in the evening. Winds could gust as high as 18 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after noon. Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of snow showers. Sunny, with a high near 45. Northwest wind around 16 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 29. West wind 5 to 15 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 56. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 36. Southeast wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 72. West wind 8 to 10 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 44. North wind 5 to 7 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 76. West wind 5 to 10 mph becoming south in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 52. Southwest wind 6 to 8 mph becoming northwest in the evening. Winds could gust as high as 18 mph.
Wednesday
A chance of showers after noon. Partly sunny, with a high near 77.
Wednesday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 43.
Thursday
Rain and snow showers likely. Mostly sunny, with a high near 52. Breezy.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Blustery.
Friday
A chance of snow showers. Mostly sunny, with a high near 45.
Friday Night
A slight chance of snow showers. Partly cloudy, with a low around 24.
Saturday
A slight chance of snow showers. Partly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Custer County Airport SD
 43.72°N 103.54°W (Elev. 5351 ft)
Last Update:
3:17 pm MDT Apr 18, 2026
Forecast Valid:
4pm MDT Apr 18, 2026-6pm MDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation