City of South Sioux City Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for City of South Sioux City in one place.
A slight chance of rain showers between 7am and 4pm. Partly sunny, with a high near 70. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for City of South Sioux City is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 3:53 AM CDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for City of South Sioux City.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 3:53 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in City of South Sioux City
Friday looks like the warmest upcoming period in City of South Sioux City at 82 degrees F.
Sunday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Friday at about 15 mph SSE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 3:53 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KOAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 1am. Mostly cloudy. Low around 59, with temperatures rising to around 62 overnight. South southeast wind 0 to 5 mph. Chance of precipitation is 40%.
Rain showers likely before 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. East wind 0 to 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 55.
Partly sunny, with a high near 70.
Partly cloudy, with a low around 51.
Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Slight Chance Rain Showers
|
70°F |
5 to 10 mph
ESE
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
59°F |
0 to 5 mph
SSE
|
|
Thursday
Sep 17
|
Rain Showers Likely
|
77°F |
0 to 5 mph
E
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms
|
61°F |
10 mph
ESE
|
|
Friday
Sep 18
|
Showers And Thunderstorms
|
82°F |
15 mph
SSE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms Likely
|
62°F |
5 to 15 mph
SW
|
|
Saturday
Sep 19
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
76°F |
10 mph
NNW
|
|
Saturday Night
Sep 19
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
55°F |
5 to 10 mph
N
|
|
Sunday
Sep 20
|
Partly Sunny
|
70°F |
5 to 10 mph
N
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
51°F |
0 to 5 mph
NE
|
|
Monday
Sep 21
|
Mostly Sunny
|
70°F |
0 to 5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around City of South Sioux City.