Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

2°F

-17°C

Humidity 63%
Wind Speed W 7 mph
Barometer 30.09 in (1027.3 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 16 Mar 2:53 am MDT
Extended Forecast for

3 Miles SSE Custer County Airport SD

  • Overnight

    Overnight: Partly cloudy, with a low around 4. Calm wind.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. Wind chill values as low as 6. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of freezing rain before 7pm, then a chance of snow between 7pm and 3am, then a chance of rain after 3am.  Mostly cloudy, with a temperature falling to near 27 by 9pm, then rising to around 35 during the remainder of the night. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 17 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 27 °F

    Chance Wintry
    Mix

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Northwest wind 6 to 15 mph, with gusts as high as 39 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Northwest wind 8 to 13 mph becoming light west  after midnight. Winds could gust as high as 34 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 28 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind 3 to 8 mph. Winds could gust as high as 23 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 24 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 4. Calm wind.
Monday
Mostly sunny, with a high near 31. Wind chill values as low as 6. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.
Monday Night
A slight chance of freezing rain before 7pm, then a chance of snow between 7pm and 3am, then a chance of rain after 3am. Mostly cloudy, with a temperature falling to near 27 by 9pm, then rising to around 35 during the remainder of the night. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 59. Northwest wind 6 to 15 mph, with gusts as high as 39 mph.
Tuesday Night
Partly cloudy, with a low around 40. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 34 mph.
Wednesday
Mostly sunny, with a high near 67. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind 3 to 8 mph. Winds could gust as high as 23 mph.
Thursday
Mostly sunny, with a high near 70. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 51.
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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)
1:21 am MDT Mar 16, 2026
3am MDT Mar 16, 2026-6pm MDT Mar 22, 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