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

Heavy Rainfall and Flooding in the Southwest and Four Corners; Unsettled Weather in Florida

Heavy to excessive rainfall will continue today across portions of the Southwest and Four Corners Region, leading to flash, urban and small stream flooding. Significant river flooding is expected through Monday. Heavy rainfall is expected across southern and eastern Florida through Monday, with isolated flash flooding possible. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Light Rain Fog

48°F

9°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.85 in (1008.7 mb)
Dewpoint 48°F (9°C)
Visibility 0.15 mi
Wind Chill44°F (7°C)
Last update 1 Nov 2:53 pm MST
Extended Forecast for

Custer SD

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly after 5pm. Cloudy, with a high near 55. Southeast wind around 9 mph, with gusts as high as 28 mph.

    High: 55 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly after 8pm. Steady temperature around 47. South wind 5 to 7 mph becoming light and variable. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 47 °F

    Rain

  • Monday

    Monday: Rain. Temperature rising to near 44 by 8am, then falling to around 38 during the remainder of the day. North wind 13 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.

    High: 44 °F⇓

    Rain

  • Monday Night

    Monday Night: Rain likely before 10pm, then rain and snow likely between 10pm and 1am, then a chance of snow after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 31. Northwest wind 10 to 17 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Sunny, with a high near 50. Northwest wind 5 to 9 mph, with gusts as high as 29 mph.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 31. Northwest wind 3 to 5 mph.

    Low: 31 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly after 5pm. Cloudy, with a high near 55. Southeast wind around 9 mph, with gusts as high as 28 mph.
Tonight
Rain, mainly after 8pm. Steady temperature around 47. South wind 5 to 7 mph becoming light and variable. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Monday
Rain. Temperature rising to near 44 by 8am, then falling to around 38 during the remainder of the day. North wind 13 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.
Monday Night
Rain likely before 10pm, then rain and snow likely between 10pm and 1am, then a chance of snow after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 31. Northwest wind 10 to 17 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
Sunny, with a high near 50. Northwest wind 5 to 9 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly clear, with a low around 31. Northwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 52.
Friday Night
A slight chance of rain and snow. Partly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Custer SD
 43.76°N 103.6°W (Elev. 5417 ft)
Last Update:
3:21 pm MST Nov 1, 2026
Forecast Valid:
3pm MST Nov 1, 2026-6pm MST Nov 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation