East Coast Storm; Heavy Rain and Flooding in the Southwest U.S.; Typhoon Remnants Impacting Alaska

A coastal storm continues to bring heavy rain, coastal flooding, high surf, dangerous rip currents, and gusty winds to the East Coast into early Tuesday. A heavy rain and flash flood risk continues for the Southwest/Four Corners region with lingering tropical moisture through Monday. Typhoon remnants are causing strong winds, heavy rain, and coastal flooding across western Alaska through Monday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Mostly Cloudy

42°F

6°C

Humidity 60%
Wind Speed SE 8 mph
Barometer 30.14 in (1020.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 13 Oct 8:53 pm MDT
Extended Forecast for

4 Miles SSE Keystone SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southeast wind 8 to 11 mph, with gusts as high as 17 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon.  Cloudy, then gradually becoming mostly sunny, with a high near 58. South wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 58 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight.  Increasing clouds, with a low around 45. East wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 58. East wind around 6 mph, with gusts as high as 16 mph.  Chance of precipitation is 30%.

    High: 58 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a steady temperature around 53. Northeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph.  Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers.  Mostly cloudy, with a high near 58. Northwest wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 41. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59. West wind 9 to 13 mph, with gusts as high as 28 mph.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after midnight.  Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Southeast wind 8 to 11 mph, with gusts as high as 17 mph.
Tuesday
A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 58. South wind 7 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Increasing clouds, with a low around 45. East wind around 6 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 58. East wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 53. Northeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 58. Northwest wind 7 to 9 mph, with gusts as high as 21 mph.
Thursday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 41. West wind 6 to 10 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 59. West wind 9 to 13 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 40.
Saturday
A slight chance of rain. Mostly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 47.
Monday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Keystone SD
 43.83°N 103.37°W (Elev. 4400 ft)
6:27 pm MDT Oct 13, 2025
8pm MDT Oct 13, 2025-6pm MDT Oct 20, 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