Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

45°F

7°C

Humidity 68%
Wind Speed Calm
Barometer 29.67 in (1002.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Nov 5:53 am MST
Extended Forecast for

3 Miles NW Keystone SD

  • Today

    Today: Rain likely, mainly between 11am and 5pm.  Patchy fog after 2pm.  Otherwise, cloudy, with a temperature falling to around 36 by 5pm. Light and variable wind becoming north around 6 mph in the afternoon.  Chance of precipitation is 70%.

    High: 47 °F

    Rain Likely
    and Patchy
    Fog

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 8pm.  Patchy fog before 11pm.  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. Light and variable wind.

    Low: 34 °F

    Chance Rain
    and Patchy
    Fog then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 39. Calm wind becoming southwest around 6 mph in the evening.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52. West wind around 6 mph becoming light and variable  in the afternoon. Winds could gust as high as 15 mph.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight, then a slight chance of rain and snow.  Mostly cloudy, with a low around 31. Northwest wind around 6 mph.  Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Northwest wind around 6 mph becoming east in the morning. Winds could gust as high as 15 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. West wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly between 11am and 5pm. Patchy fog after 2pm. Otherwise, cloudy, with a temperature falling to around 36 by 5pm. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 70%.
Tonight
A 30 percent chance of rain, mainly before 8pm. Patchy fog before 11pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. Light and variable wind.
Tuesday
Mostly sunny, with a high near 48. Light and variable wind.
Tuesday Night
Mostly cloudy, with a steady temperature around 39. Calm wind becoming southwest around 6 mph in the evening.
Wednesday
Mostly sunny, with a high near 52. West wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. Northwest wind around 6 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 44. Northwest wind around 6 mph becoming east in the morning. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 29. West wind around 6 mph.
Friday
Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Keystone SD
 43.94°N 103.47°W (Elev. 5482 ft)
3:27 am MST Nov 17, 2025
6am MST Nov 17, 2025-6pm MST Nov 23, 2025
 
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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