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

Lingering Winter Weather in Interior New England; Snow Squalls Developing Downwind of the Lower Great Lakes

A wintry mix will continue in interior New England through tonight as a coastal storm quickly passes to the east. Heavy snow is expected in northern Maine, with a coating of ice expected for much of interior New England. Behind this storm system, lake effect snow and snow squalls will develop from the Ohio Valley to interior New England through Monday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

36°F

2°C

Humidity 28%
Wind Speed W 3 mph
Barometer 30.24 in (1023.7 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 11 Jan 9:53 pm MST
Extended Forecast for

2 Miles ESE Keystone SD

  • Tonight

    Tonight: Partly cloudy, with a low around 40. West wind around 6 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57. West wind 6 to 13 mph, with gusts as high as 30 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. West wind 9 to 11 mph, with gusts as high as 31 mph.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 52. Northwest wind 14 to 16 mph, with gusts as high as 40 mph.

    High: 52 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Northwest wind 10 to 13 mph, with gusts as high as 36 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. Northwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 23 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 36 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 47. Northwest wind 16 to 18 mph, with gusts as high as 44 mph.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23. Blustery.

    Low: 23 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Blustery

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. West wind around 6 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 57. West wind 6 to 13 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 44. West wind 9 to 11 mph, with gusts as high as 31 mph.
Tuesday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 52. Northwest wind 14 to 16 mph, with gusts as high as 40 mph.
Tuesday Night
Partly cloudy, with a low around 33. Northwest wind 10 to 13 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 48. Northwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 34. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 36 mph.
Thursday
Mostly sunny, with a high near 47. Northwest wind 16 to 18 mph, with gusts as high as 44 mph.
Thursday Night
Partly cloudy, with a low around 23. Blustery.
Friday
Partly sunny, with a high near 30. Blustery.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Keystone SD
 43.9°N 103.37°W (Elev. 4199 ft)
Last Update:
9:31 pm MST Jan 11, 2026
Forecast Valid:
10pm MST Jan 11, 2026-6pm MST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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