Heavy Rain and Strong-to-Severe Thunderstorms from the Central Miss. Valley to the Mid-Atlantic

A slow-moving weather system in the eastern U.S. will focus showers and thunderstorms from the mid-Mississippi River Valley to the Mid-Atlantic on Thursday. Abundant moisture will allow occasionally heavy rainfall. Flash Flood Watches are in effect in these areas. Severe thunderstorms with damaging wind gusts and large hail will also be possible in this same area. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

A Few Clouds

65°F

18°C

Humidity 59%
Wind Speed N 10 G 16 mph
Barometer 30.25 in (1018.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 28 Jul 2:53 pm MDT
Extended Forecast for

Keystone SD

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms.  Mostly cloudy, with a steady temperature around 67. North wind around 6 mph becoming east.  Chance of precipitation is 50%.

    Scattered
    T-storms

    High: 67 °F

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 5am.  Mostly cloudy, with a low around 55. East wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 40%.

    Scattered
    T-storms

    Low: 55 °F

  • Friday

    Friday: A slight chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 76. Light and variable wind becoming southeast 5 to 8 mph in the morning.  Chance of precipitation is 40%.

    Chance
    T-storms

    High: 76 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 57. Calm wind becoming southwest around 6 mph after midnight.

    Slight Chance
    T-storms

    Low: 57 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after noon.  Mostly sunny, with a high near 81. Southwest wind 7 to 9 mph becoming southeast in the afternoon.

    Chance
    T-storms

    High: 81 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 62. Southeast wind 8 to 10 mph becoming southwest after midnight.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 62 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 87.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 87 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms, mainly after midnight.  Partly cloudy, with a low around 63.

    Chance
    T-storms

    Low: 63 °F

  • Monday

    Monday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 86.

    Slight Chance
    T-storms

    High: 86 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a steady temperature around 67. North wind around 6 mph becoming east. Chance of precipitation is 50%.
Tonight
Scattered showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 55. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. Light and variable wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57. Calm wind becoming southwest around 6 mph after midnight.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 81. Southwest wind 7 to 9 mph becoming southeast in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. Southeast wind 8 to 10 mph becoming southwest after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 63.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 60.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
Keystone SD
 43.89°N 103.43°W (Elev. 4541 ft)
2:27 pm MDT Jul 28, 2016
3pm MDT Jul 28, 2016-6pm MDT Aug 4, 2016
 
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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