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

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

60°F

16°C

Humidity 32%
Wind Speed NE 5 mph
Barometer 30.19 in (1018.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 7 Oct 6:53 pm MDT
Extended Forecast for

Edgemont SD

Fire Weather Watch October 9, 11:00am until October 9, 08:00pm
Click here for hazard details and duration
Fire Weather Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 49. East wind 5 to 11 mph, with gusts as high as 16 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Light northwest wind becoming west 13 to 18 mph in the morning. Winds could gust as high as 33 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southwest wind 9 to 14 mph, with gusts as high as 29 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. West wind 8 to 18 mph becoming south in the afternoon. Winds could gust as high as 31 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 47. Breezy.

    Low: 47 °F

    Chance Rain
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain before noon. Partly sunny, with a high near 60. Breezy.

    High: 60 °F

    Slight Chance
    Rain then
    Partly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Rain Likely
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. East wind 5 to 11 mph, with gusts as high as 16 mph.
Thursday
Sunny, with a high near 78. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 49. Northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Light northwest wind becoming west 13 to 18 mph in the morning. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 58. Southwest wind 9 to 14 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 86. West wind 8 to 18 mph becoming south in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 47. Breezy.
Sunday
A slight chance of rain before noon. Partly sunny, with a high near 60. Breezy.
Sunday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 40. Breezy.
Columbus Day
A chance of rain, mainly before noon. Partly sunny, with a high near 53.
Monday Night
A chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly sunny, with a high near 61. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edgemont SD
 43.32°N 103.8°W (Elev. 3504 ft)
Last Update:
4:41 pm MDT Oct 7, 2026
Forecast Valid:
6pm MDT Oct 7, 2026-6pm MDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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