Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

39°F

4°C

Humidity 45%
Wind Speed NW 10 G 22 mph
Barometer 29.96 in (1016.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 8 Dec 2:53 pm MST
Extended Forecast for

5 Miles SE Custer County Airport SD

  • Tonight

    Tonight: A 10 percent chance of snow after 5am.  Partly cloudy, with a temperature rising to around 37 by 5am. West wind 9 to 18 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 4pm, then a chance of snow.  Sunny, with a high near 47. Breezy, with a west wind 21 to 29 mph, with gusts as high as 46 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. Wind chill values as low as 14. Blustery, with a northwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 39 mph.

    Low: 23 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Snow likely before 4pm, then rain and snow likely.  Mostly cloudy, with a high near 39. Wind chill values as low as 16. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 3am, then a chance of rain and snow.  Mostly cloudy, with a steady temperature around 36. West wind 13 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow before 4pm, then a chance of snow.  Mostly cloudy, with a high near 41. West wind around 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before 11pm.  Mostly cloudy, with a low around 12. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.

    Low: 12 °F

    Snow Likely

  • Friday

    Friday: A chance of snow.  Mostly cloudy, with a high near 19. Southwest wind around 6 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 19 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before 11pm.  Mostly cloudy, with a low around 10.

    Low: 10 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A 10 percent chance of snow after 5am. Partly cloudy, with a temperature rising to around 37 by 5am. West wind 9 to 18 mph, with gusts as high as 25 mph.
Tuesday
A chance of rain and snow before 4pm, then a chance of snow. Sunny, with a high near 47. Breezy, with a west wind 21 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
Partly cloudy, with a low around 23. Wind chill values as low as 14. Blustery, with a northwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 39 mph.
Wednesday
Snow likely before 4pm, then rain and snow likely. Mostly cloudy, with a high near 39. Wind chill values as low as 16. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a steady temperature around 36. West wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before 4pm, then a chance of snow. Mostly cloudy, with a high near 41. West wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 12. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday
A chance of snow. Mostly cloudy, with a high near 19. Southwest wind around 6 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A chance of snow before 11pm. Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Custer County Airport SD
 43.67°N 103.56°W (Elev. 5623 ft)
3:22 pm MST Dec 8, 2025
3pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
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Additional Resources

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