River Flooding Continues in East Florida; Rain and Thunderstorms from the Mid-Atlantic to the Northeast Thursday; Heavy Rain in Puerto Rico

Significant river flooding is forecast along the St. John’s and the Peace rivers through the end of the week as flood waters will be slow to recede. Periods of rainfall and thunderstorms are expected across the Lower Great Lakes, Central Appalachians, Mid-Atlantic and Northeast Thursday and Friday. In Puerto Rico, increased moisture in the Atlantic will produce heavy rainfall for the island. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

41°F

5°C

Humidity 49%
Wind Speed W 5 mph
Barometer 30.12 in (1019.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 5 Nov 7:53 am MST
Extended Forecast for

3 Miles NW Keystone SD

  • Today

    Today: Sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 39. West wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 53. West wind around 5 mph becoming calm  in the afternoon. Winds could gust as high as 16 mph.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. West wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. West wind 5 to 7 mph becoming calm  in the afternoon. Winds could gust as high as 18 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. West wind 5 to 8 mph, with gusts as high as 17 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 52. Light and variable wind.
Tonight
Partly cloudy, with a steady temperature around 39. West wind 6 to 9 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 53. West wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 16 mph.
Friday Night
Mostly clear, with a low around 35. West wind 5 to 9 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 57. West wind 5 to 7 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 38. West wind 5 to 8 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 39.
Veterans Day
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Keystone SD
 43.94°N 103.47°W (Elev. 5482 ft)
6:21 am MST Nov 5, 2026
8am MST Nov 5, 2026-6pm MST Nov 11, 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