Custer County, SD Weather Forecast
County weather hub
Chance Light Snow
Compare major city weather across Custer County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of snow. Cloudy, with a low around 31. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
County Weather Overview
This county weather page brings together forecast coverage for Custer County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Custer County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 3:03 AM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer County
Wednesday looks like the warmest upcoming period in Custer County at 81 degrees F.
Friday Night is the coolest period ahead with temperatures near 25 degrees F.
The strongest winds are forecast for Thursday at about 15 to 20 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 3:03 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- UNR
- Radar station
- KUDX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of snow before noon. Mostly cloudy, with a high near 41. Northwest wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 25. Wind chill values as low as 17. Northwest wind 8 to 15 mph, with gusts as high as 29 mph.
A slight chance of snow showers between noon and 5pm, then a slight chance of rain and snow showers. Mostly sunny, with a high near 49. Wind chill values as low as 19. Northwest wind 9 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 29 mph.
Sunny, with a high near 66. Northeast wind 6 to 9 mph, with gusts as high as 21 mph.
Mostly clear, with a low around 40. North wind 5 to 8 mph, with gusts as high as 17 mph.
Mostly sunny, with a high near 76. West wind 7 to 14 mph, with gusts as high as 28 mph.
Partly cloudy, with a low around 47.
Sunny, with a high near 79.
Partly cloudy, with a low around 53.
A chance of rain showers after noon. Mostly sunny, with a high near 81.
A chance of rain showers. Mostly cloudy, with a low around 49.
A chance of rain showers. Partly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 17
|
Chance Light Snow
|
31°F |
10 to 14 mph
N
|
|
Friday
Apr 17
|
Slight Chance Light Snow then Mostly Cloudy
|
41°F |
10 to 16 mph
NW
|
|
Friday Night
Apr 17
|
Mostly Clear
|
25°F |
8 to 15 mph
NW
|
|
Saturday
Apr 18
|
Mostly Sunny then Slight Chance Snow Showers
|
49°F |
9 to 17 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
33°F |
5 to 15 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
66°F |
6 to 9 mph
NE
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
40°F |
5 to 8 mph
N
|
|
Monday
Apr 20
|
Mostly Sunny
|
76°F |
7 to 14 mph
W
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
47°F |
5 to 8 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
79°F |
5 to 10 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
53°F |
8 mph
SW
|
|
Wednesday
Apr 22
|
Mostly Sunny then Chance Rain Showers
|
81°F |
6 to 14 mph
SW
|
|
Wednesday Night
Apr 22
|
Chance Rain Showers
|
49°F |
14 mph
W
|
|
Thursday
Apr 23
|
Chance Rain Showers
|
65°F |
15 to 20 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Custer County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Custer County.
Largest mapped city population in this region: 1,926.
