Currently: 25 °F. Fog. (Weather station: Sioux City Sioux Gateway Airport, USA). See more current weatherAnnual Weather Averages Near Sioux City
Averages are for Sioux City Sioux Gateway Airport, which is 6 miles from Sioux City.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Sioux City
High Temp: 86 °F
Low Temp: 11 °F
Mean Temp: 49 °F
Precipitation: 2.34"
Humidity: 70%
Dew Point: 39 °F
Wind: 16 mph
Pressure: 30.04 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Sioux City
High Temp: 30 °F
Low Temp: 11 °F
Mean Temp: 21 °F
Precipitation: 0.71"
Humidity: 77%
Dew Point: 15 °F
Wind: 17 mph
Pressure: 30.16 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Sioux City
High Temp: 34 °F
Low Temp: 15 °F
Mean Temp: 25 °F
Precipitation: 0.79"
Humidity: 75%
Dew Point: 18 °F
Wind: 17 mph
Pressure: 30.15 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Sioux City
High Temp: 48 °F
Low Temp: 26 °F
Mean Temp: 37 °F
Precipitation: 1.65"
Humidity: 69%
Dew Point: 27 °F
Wind: 18 mph
Pressure: 30.09 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Sioux City
High Temp: 61 °F
Low Temp: 36 °F
Mean Temp: 49 °F
Precipitation: 2.84"
Humidity: 62%
Dew Point: 36 °F
Wind: 19 mph
Pressure: 29.99 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Sioux City
High Temp: 72 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 3.96"
Humidity: 63%
Dew Point: 47 °F
Wind: 18 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Sioux City
High Temp: 83 °F
Low Temp: 59 °F
Mean Temp: 71 °F
Precipitation: 3.86"
Humidity: 66%
Dew Point: 59 °F
Wind: 15 mph
Pressure: 29.90 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Sioux City
High Temp: 86 °F
Low Temp: 64 °F
Mean Temp: 75 °F
Precipitation: 3.44"
Humidity: 73%
Dew Point: 65 °F
Wind: 12 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Sioux City
High Temp: 83 °F
Low Temp: 61 °F
Mean Temp: 72 °F
Precipitation: 3.80"
Humidity: 75%
Dew Point: 64 °F
Wind: 12 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Sioux City
High Temp: 77 °F
Low Temp: 51 °F
Mean Temp: 64 °F
Precipitation: 2.77"
Humidity: 69%
Dew Point: 54 °F
Wind: 14 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Sioux City
High Temp: 64 °F
Low Temp: 38 °F
Mean Temp: 51 °F
Precipitation: 2.09"
Humidity: 66%
Dew Point: 39 °F
Wind: 16 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Sioux City
High Temp: 48 °F
Low Temp: 25 °F
Mean Temp: 37 °F
Precipitation: 1.18"
Humidity: 70%
Dew Point: 27 °F
Wind: 16 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Sioux City
High Temp: 35 °F
Low Temp: 15 °F
Mean Temp: 25 °F
Precipitation: 0.95"
Humidity: 77%
Dew Point: 18 °F
Wind: 16 mph
Pressure: 30.12 "Hg
Visibility: 9 mi