Sioux County, IA Weather Forecast
County weather hub
Rain Showers
Compare major city weather across Sioux County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers. Cloudy, with a high near 57. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
County Weather Overview
This county weather page brings together forecast coverage for Sioux County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 6 of 6 mapped cities in Sioux County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 4:11 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Sioux County
Tuesday looks like the warmest upcoming period in Sioux County at 71 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Thursday Night at about 15 to 20 mph NW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Oct 14, 2026 4:11 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 40. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly sunny, with a high near 54. North northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Widespread frost after 1am. Clear, with a low around 33.
Widespread frost before 7am. Sunny, with a high near 61.
Clear, with a low around 44.
Sunny, with a high near 64.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 67.
Clear, with a low around 47.
Sunny, with a high near 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Rain Showers
|
57°F |
5 to 15 mph
N
|
|
Thursday Night
Oct 15
|
Mostly Cloudy
|
40°F |
15 to 20 mph
NW
|
|
Friday
Oct 16
|
Mostly Sunny
|
54°F |
10 to 20 mph
NNW
|
|
Friday Night
Oct 16
|
Clear then Widespread Frost
|
33°F |
0 to 5 mph
W
|
|
Saturday
Oct 17
|
Widespread Frost then Sunny
|
61°F |
10 to 20 mph
SSW
|
|
Saturday Night
Oct 17
|
Clear
|
44°F |
15 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
64°F |
10 to 15 mph
SSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
45°F |
0 to 5 mph
SSE
|
|
Monday
Oct 19
|
Mostly Sunny
|
67°F |
0 to 5 mph
E
|
|
Monday Night
Oct 19
|
Clear
|
47°F |
0 to 5 mph
SE
|
|
Tuesday
Oct 20
|
Sunny
|
71°F |
5 to 10 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Sioux County.
Coverage
Forecast coverage currently spans 6 of 6 mapped cities in Sioux County.
Largest mapped city population in this region: 7,665.
