Severe Thunderstorms and Heavy Rain in the Mississippi Valley; Fire Weather Concerns in the Southern High Plains

Severe thunderstorms and the threat for excessive rainfall will move into the mid-Mississippi and lower Ohio Valleys today. There is potential for a few strong tornadoes, damaging wind gusts, large hail, and scattered flash flooding. Low humidity and windy conditions will continue to produce elevated to critical fire weather conditions across the southern High Plains into midweek. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

30°F

-1°C

Humidity 82%
Wind Speed N 5 mph
Barometer 29.91 in (1015.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 27 Apr 10:53 am MDT
Extended Forecast for

4 Miles SW Mount Rushmore SD

  • Today

    Today: A slight chance of snow before noon, then a chance of snow showers, mainly after 2pm.  Cloudy, with a high near 35. Wind chill values as low as 18. North wind 9 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 50%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 35 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 3am.  Cloudy, with a low around 27. Northeast wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 16 mph.  New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Slight Chance
    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Snow before noon, then snow, possibly mixed with rain.  High near 37. Light and variable wind. Winds could gust as high as 16 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Snow then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers before midnight.  Partly cloudy, with a low around 28. Calm wind becoming west 5 to 8 mph in the evening. Winds could gust as high as 17 mph.

    Low: 28 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Wednesday

    Wednesday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 47. Northwest wind 6 to 8 mph, with gusts as high as 21 mph.  Chance of precipitation is 40%.

    High: 47 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Northwest wind around 7 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow showers between noon and 2pm, then a slight chance of rain showers after 2pm.  Mostly sunny, with a high near 47. Northwest wind around 7 mph becoming northeast in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 20%.

    High: 47 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Calm wind becoming west 5 to 8 mph after midnight. Winds could gust as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
A slight chance of snow before noon, then a chance of snow showers, mainly after 2pm. Cloudy, with a high near 35. Wind chill values as low as 18. North wind 9 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 50 percent chance of snow, mainly after 3am. Cloudy, with a low around 27. Northeast wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 16 mph. New snow accumulation of less than a half inch possible.
Tuesday
Snow before noon, then snow, possibly mixed with rain. High near 37. Light and variable wind. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 28. Calm wind becoming west 5 to 8 mph in the evening. Winds could gust as high as 17 mph.
Wednesday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 47. Northwest wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 29. Northwest wind around 7 mph, with gusts as high as 21 mph.
Thursday
A slight chance of snow showers between noon and 2pm, then a slight chance of rain showers after 2pm. Mostly sunny, with a high near 47. Northwest wind around 7 mph becoming northeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 28. Calm wind becoming west 5 to 8 mph after midnight. Winds could gust as high as 21 mph.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 36.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 39.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
8:37 am MDT Apr 27, 2026
11am MDT Apr 27, 2026-6pm MDT May 3, 2026
 
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Additional Resources

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