Custer County, SD Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Custer County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 62. Northwest wind around 5 mph.
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
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 6:05 AM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer County
Sunday looks like the warmest upcoming period in Custer County at 96 degrees F.
Overnight is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Monday Night at about 7 to 13 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 6:05 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 showers and thunderstorms after noon. Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Northeast wind 3 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 68. Northeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunny, with a high near 93. East wind 6 to 10 mph, with gusts as high as 22 mph.
Partly cloudy, with a low around 71. South wind 3 to 9 mph, with gusts as high as 22 mph.
A slight chance of showers and thunderstorms after noon. Mostly sunny. High near 96, with temperatures falling to around 92 in the afternoon. South wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 70.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 67.
Partly sunny, with a high near 82.
A slight chance of showers and thunderstorms before midnight, then showers and thunderstorms likely. Mostly cloudy, with a low around 63.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 80.
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 17
|
Mostly Clear
|
62°F |
5 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
3 to 9 mph
NE
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
68°F |
6 to 9 mph
NE
|
|
Saturday
Jul 18
|
Sunny
|
93°F |
6 to 10 mph
E
|
|
Saturday Night
Jul 18
|
Partly Cloudy
|
71°F |
3 to 9 mph
S
|
|
Sunday
Jul 19
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
96°F |
8 mph
S
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
7 mph
N
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
7 to 10 mph
N
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
67°F |
7 to 13 mph
NE
|
|
Tuesday
Jul 21
|
Partly Sunny
|
82°F |
9 mph
NE
|
|
Tuesday Night
Jul 21
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
3 to 9 mph
SE
|
|
Wednesday
Jul 22
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
80°F |
3 to 9 mph
SE
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms
|
63°F |
2 to 9 mph
N
|
|
Thursday
Jul 23
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
82°F |
2 to 7 mph
NE
|
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.
