Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

64°F

18°C

Humidity 29%
Wind Speed NE 3 mph
Barometer 30.16 in (1016.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 8 Oct 9:53 am MDT
Extended Forecast for

6 Miles NNW Keystone SD

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

    Today: Sunny, with a high near 76. Light and variable wind. Winds could gust as high as 18 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 16 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Southwest wind 5 to 11 mph, with gusts as high as 29 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Southwest wind around 7 mph, with gusts as high as 29 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. West wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 29 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight.  Mostly cloudy, with a low around 45. Calm wind becoming north around 5 mph. Winds could gust as high as 21 mph.

    Low: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain.  Mostly cloudy, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly after midnight.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain

  • Columbus Day

    Columbus Day: Rain likely before 9am, then rain and snow likely between 9am and noon, then a chance of rain after noon.  Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain/Snow
    Likely then
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 76. Light and variable wind. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 51. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 16 mph.
Friday
Sunny, with a high near 83. Southwest wind 5 to 11 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 60. Southwest wind around 7 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 81. West wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 45. Calm wind becoming north around 5 mph. Winds could gust as high as 21 mph.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 56.
Sunday Night
Rain, mainly after midnight. Mostly cloudy, with a low around 34.
Columbus Day
Rain likely before 9am, then rain and snow likely between 9am and noon, then a chance of rain after noon. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain before midnight. Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 58.
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.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
9:21 am MDT Oct 8, 2026
10am MDT Oct 8, 2026-6pm MDT Oct 14, 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