National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

55°F

13°C

Humidity 31%
Wind Speed NE 15 G 25 mph
Barometer 29.91 in (1007.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 15 May 9:53 pm MDT
Extended Forecast for

5 Miles E Custer SD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 42. Northeast wind 3 to 6 mph. Winds could gust as high as 20 mph.

    Low: 42 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 24 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers before 9pm, then showers and possibly a thunderstorm between 9pm and midnight, then showers after midnight. Low around 46. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly after noon. Mostly cloudy, with a high near 63. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    High: 63 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers likely before 5am, then rain and snow showers likely. Mostly cloudy, with a low around 33. North wind 7 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Monday

    Monday: Rain and snow showers. Steady temperature around 35. North wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Rain/Snow

  • Monday Night

    Monday Night: A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Tuesday

    Tuesday: A slight chance of snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Some thunder is also possible. Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 42. Northeast wind 3 to 6 mph. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Showers before 9pm, then showers and possibly a thunderstorm between 9pm and midnight, then showers after midnight. Low around 46. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Sunday
Showers likely, mainly after noon. Mostly cloudy, with a high near 63. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers likely before 5am, then rain and snow showers likely. Mostly cloudy, with a low around 33. North wind 7 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Rain and snow showers. Steady temperature around 35. North wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
A chance of rain and snow showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Tuesday
A slight chance of snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Some thunder is also possible. Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 64.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 42.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Custer SD
 43.76°N 103.51°W (Elev. 5249 ft)
Last Update:
9:38 pm MDT May 15, 2026
Forecast Valid:
10pm MDT May 15, 2026-6pm MDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation