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Heavy Rain and a Few Severe Thunderstorms Across Nation's Mid-Section Wednesday

A slow-moving front will bring multiple rounds of thunderstorms across parts of the Missouri River Valley into the Mid-Mississippi and the Tennessee River Valleys through Wednesday night. Local flooding from the heavy rains can be expected in some areas, so Flash Flood Watches are in effect. In addition, some of the stronger storms may produce damaging winds, large hail, and isolated tornadoes.
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Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

79°F

26°C

Humidity 34%
Wind Speed N 5 mph
Barometer 30.14 in (1013.5 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 1 Jul 2:53 pm MDT
Extended Forecast for

Keystone SD

  • Tonight

    Chance Thunderstorms Chance for Measurable Precipitation 40%

    Chance
    Thunderstorms

    Low: 58 °F

  • Thursday

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 77 °F

  • Thursday
    Night

    Partly Cloudy

    Partly
    Cloudy

    Low: 56 °F

  • Friday

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    High: 79 °F

  • Friday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 58 °F

  • Independence
    Day

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 83 °F

  • Saturday
    Night

    Partly Cloudy

    Partly
    Cloudy

    Low: 61 °F

  • Sunday

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 78 °F

  • Sunday
    Night

    Chance Thunderstorms Chance for Measurable Precipitation 40%

    Chance
    Thunderstorms

    Low: 56 °F

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North wind 5 to 8 mph becoming light and variable.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 77. North wind 5 to 11 mph, with gusts as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 56. North wind 5 to 7 mph becoming light and variable after midnight.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Light and variable wind becoming east around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. Light and variable wind becoming south around 6 mph in the evening.
Independence Day
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. South wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
  Click Map For Forecast
Point Forecast:
Keystone SD
 43.89°N 103.43°W (Elev. 4541 ft)
2:28 pm MDT Jul 1, 2015
4pm MDT Jul 1, 2015-6pm MDT Jul 8, 2015
 
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