See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
14°
Clear
Feels Like: 10°
Min: 13°
Max: 20°
The next few hours will be overcast, with today reaching 18°C and dropping to 15°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:13
Sunrise
19:26
Sunset
Moon
Waxing Crescent
13:16
Moonrise
21:26
Moonset
Daily Forecast
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Weather in South Sioux City today, September 16, 2026
Expect a muted, overcast feel in South Sioux City on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.
The day peaks near 20°C and cools toward 13°C. Moisture in the air spans 66%-100%, with the highest values around 23:00. Winds stay light, near 4.2 km/h by 12:00, so the day feels still more than breezy.
Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.0 km, briefly nearer 8.9 km. The sun rises at 07:13 and sets at 19:26, for a total of 12 hours 13 minutes of sunlight today.
The practical takeaway for South Sioux City on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 20°C.
Frequently asked questions about weather in South Sioux City
How warm does it get in South Sioux City?
The warmest month in South Sioux City is July, with average high temperatures of 30°C. The average temperature during this period is around 25°C.
How cold does it get in South Sioux City?
The coldest month in South Sioux City is January, with average low temperatures of -9°C. The average temperature during this period is around -6°C.
What is the wettest time of year in South Sioux City?
The wettest month in South Sioux City is May, with an average of 128mm of precipitation.
What is the driest time of year in South Sioux City?
The driest month in South Sioux City is February, with an average of 27mm of precipitation.
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