Fall River County, SD Weather Forecast
County weather hub
Chance Rain And Snow
Compare major city weather across Fall River County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain before 2am, then a chance of rain and snow. Cloudy, with a low around 32. North wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
County Weather Overview
This county weather page brings together forecast coverage for Fall River 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 Fall River County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 2:41 AM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Fall River County
Tuesday looks like the warmest upcoming period in Fall River County at 85 degrees F.
Friday Night is the coolest period ahead with temperatures near 22 degrees F.
The strongest winds are forecast for Thursday at about 16 to 33 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 2:41 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 chance of snow before noon. Mostly cloudy, with a high near 45. Northwest wind 10 to 29 mph, with gusts as high as 43 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible.
Mostly clear, with a low around 22. Wind chill values as low as 12. West wind 10 to 25 mph, with gusts as high as 38 mph.
Mostly sunny, with a high near 54. West wind 10 to 26 mph, with gusts as high as 41 mph.
Mostly clear, with a low around 26. West wind 6 to 23 mph, with gusts as high as 35 mph.
Sunny, with a high near 71. West wind 6 to 10 mph, with gusts as high as 17 mph.
Mostly clear, with a low around 35. East wind 6 to 9 mph.
Mostly sunny, with a high near 82. West wind 7 to 18 mph, with gusts as high as 30 mph.
Partly cloudy, with a low around 41.
Sunny, with a high near 85.
Partly cloudy, with a low around 50.
A chance of rain showers after noon. Mostly sunny, with a high near 85.
A chance of rain showers. Mostly cloudy, with a low around 47.
A chance of rain showers. Partly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 17
|
Chance Rain And Snow
|
32°F |
13 mph
N
|
|
Friday
Apr 17
|
Chance Light Snow then Mostly Cloudy
|
45°F |
10 to 29 mph
NW
|
|
Friday Night
Apr 17
|
Mostly Clear
|
22°F |
10 to 25 mph
W
|
|
Saturday
Apr 18
|
Mostly Sunny
|
54°F |
10 to 26 mph
W
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
26°F |
6 to 23 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
71°F |
6 to 10 mph
W
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
35°F |
6 to 9 mph
E
|
|
Monday
Apr 20
|
Mostly Sunny
|
82°F |
7 to 18 mph
W
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
41°F |
5 to 14 mph
NE
|
|
Tuesday
Apr 21
|
Sunny
|
85°F |
5 to 14 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
50°F |
7 to 13 mph
S
|
|
Wednesday
Apr 22
|
Mostly Sunny then Chance Rain Showers
|
85°F |
7 to 21 mph
S
|
|
Wednesday Night
Apr 22
|
Chance Rain Showers
|
47°F |
15 to 21 mph
W
|
|
Thursday
Apr 23
|
Chance Rain Showers
|
70°F |
16 to 33 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Fall River County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Fall River County.
Largest mapped city population in this region: 3,502.
