Heavy Rainfall Across South Texas and the Northeast; Thunderstorms in the Southern Appalachians and Rio Grande Valley

Widespread showers and thunderstorms producing heavy rain may bring flooding to South Texas and parts of the Northeast U.S. tonight into Friday morning. Scattered severe thunderstorms with damaging gusts and large hail are expected over parts of the southern Appalachians, and Rio Grande Valley of Texas into Friday morning. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

49°F

9°C

Humidity 56%
Wind Speed NW 6 mph
Barometer 30.28 in (1020.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 9 May 2:53 am MDT
Extended Forecast for

5 Miles WSW Mount Rushmore SD

  • Overnight

    Overnight: Partly cloudy, with a low around 48. West wind around 8 mph, with gusts as high as 16 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 67. Northwest wind 5 to 8 mph becoming east in the afternoon. Winds could gust as high as 18 mph.

    High: 67 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 43. Light and variable wind becoming southwest 5 to 7 mph after midnight.

    Low: 43 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75. South wind 7 to 10 mph, with gusts as high as 24 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. South wind 9 to 11 mph, with gusts as high as 26 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Southwest wind around 10 mph, with gusts as high as 28 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56. Southwest wind 10 to 13 mph, with gusts as high as 28 mph.

    Low: 56 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. Southwest wind 10 to 13 mph, with gusts as high as 30 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 53.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 48. West wind around 8 mph, with gusts as high as 16 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Northwest wind 5 to 8 mph becoming east in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 43. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Saturday
Sunny, with a high near 75. South wind 7 to 10 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 53. South wind 9 to 11 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 80. Southwest wind around 10 mph, with gusts as high as 28 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56. Southwest wind 10 to 13 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 78. Southwest wind 10 to 13 mph, with gusts as high as 30 mph.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53.
Tuesday
A slight chance of showers after noon. Mostly sunny, with a high near 74.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 48.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 61.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
3:31 am MDT May 9, 2025
3am MDT May 9, 2025-6pm MDT May 15, 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