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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

49°F

9°C

Humidity 43%
Wind Speed W 5 mph
Barometer 29.99 in (1011.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Mar 1:53 am MDT
Extended Forecast for

3 Miles SSE Custer County Airport SD

Red Flag Warning March 18, 10:00am until March 18, 07:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 46. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. West wind 7 to 16 mph, with gusts as high as 31 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 28 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 25 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. Light northwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 23 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 28 mph.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 46. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 69. West wind 7 to 16 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 28 mph.
Thursday
Mostly sunny, with a high near 72. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 72. Light northwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Mostly clear, with a low around 47. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Saturday
Mostly sunny, with a high near 76. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 28 mph.
Saturday Night
A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 50.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Custer County Airport SD
 43.69°N 103.6°W (Elev. 5400 ft)
Last Update:
2:37 am MDT Mar 18, 2026
Forecast Valid:
2am MDT Mar 18, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation