Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

61°F

16°C

Humidity 65%
Wind Speed NW 5 mph
Barometer 30.04 in (1010.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 15 Jul 6:53 am MDT
Extended Forecast for

5 Miles SE Keystone SD

  • Today

    Today: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 70 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am.  Patchy fog after midnight. Low around 54. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%.

    Low: 54 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  Areas of fog before 10am. High near 55. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%.

    High: 55 °F

    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 74. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 61. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 61 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. North wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Patchy fog after midnight. Low around 54. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Areas of fog before 10am. High near 55. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 74. South wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61. Southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 82. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 63.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Keystone SD
 43.83°N 103.37°W (Elev. 4400 ft)
6:29 am MDT Jul 15, 2025
7am MDT Jul 15, 2025-6pm MDT Jul 21, 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