Saturday
Mostly cloudy
High:
10°F
Mostly cloudy, with a high near 10. Calm wind becoming south around 5 mph in the morning.
Sioux City, IA Weather - Tomorrow’s Forecast
Saturday Night
Mostly cloudy
Overnight low:
-3°F
Mostly cloudy, with a low around -3. South southeast wind around 5 mph becoming calm in the evening.