Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

61°F

16°C

Humidity 29%
Wind Speed NE 9 G 18 mph
Barometer 30.20 in (1018.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 18 Oct 12:53 pm MDT
Extended Forecast for

6 Miles N Keystone SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 62. Northeast wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. Light and variable wind.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Southeast wind around 6 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. West wind 3 to 5 mph. Winds could gust as high as 16 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind becoming west around 5 mph. Winds could gust as high as 18 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 62. Northeast wind 5 to 7 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 34. Light and variable wind.
Monday
Sunny, with a high near 58. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Clear, with a low around 44. Southeast wind around 6 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 74. West wind 3 to 5 mph. Winds could gust as high as 16 mph.
Tuesday Night
Mostly clear, with a low around 44. Calm wind becoming west around 5 mph. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 53.
Friday
A slight chance of rain. Partly sunny, with a high near 70.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43.
Saturday
A slight chance of rain. Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Keystone SD
 43.98°N 103.44°W (Elev. 4600 ft)
12:31 pm MDT Oct 18, 2026
12pm MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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