National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

69°F

21°C

Humidity 29%
Wind Speed S 5 mph
Barometer 29.77 in (1001.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 10 Oct 5:53 pm MDT
Extended Forecast for

Edgemont SD

  • Tonight

    Tonight: A slight chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Breezy, with a northwest wind 5 to 10 mph becoming east 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 72 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 45. Breezy, with an east wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 36 mph.

    Low: 45 °F

    Chance
    Showers and
    Breezy

  • Columbus Day

    Columbus Day: Cloudy through mid morning, then gradual clearing, with a high near 68. Breezy, with an east wind 9 to 14 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 68 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of rain. Increasing clouds, with a low around 42. North wind 13 to 18 mph becoming southeast 7 to 12 mph after midnight. Winds could gust as high as 25 mph.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 60. East wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 60 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
A slight chance of showers between 8pm and 10pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 72. Breezy, with a northwest wind 5 to 10 mph becoming east 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45. Breezy, with an east wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 36 mph.
Columbus Day
Cloudy through mid morning, then gradual clearing, with a high near 68. Breezy, with an east wind 9 to 14 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
A 40 percent chance of rain. Increasing clouds, with a low around 42. North wind 13 to 18 mph becoming southeast 7 to 12 mph after midnight. Winds could gust as high as 25 mph.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 60. East wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 56.
Wednesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Partly sunny, with a high near 61. Breezy.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 37. Breezy.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgemont SD
 43.29°N 103.83°W (Elev. 3589 ft)
Last Update:
3:36 pm MDT Oct 10, 2026
Forecast Valid:
6pm MDT Oct 10, 2026-6pm MDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation