Currently: 79 °F. Passing clouds. (Weather station: Southern Illinois Airport, USA). See more current weatherAnnual Weather Averages in Southern Illinois Airport
Southern Illinois Airport is 51 miles from 38°29'29.5"N, 89°01'42.9"W, so the actual climate in 38°29'29.5"N, 89°01'42.9"W can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 89 °F
Low Temp: 25 °F
Mean Temp: 57 °F
Precipitation: 3.48"
Humidity: 71%
Dew Point: 47 °F
Wind: 11 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
January Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 42 °F
Low Temp: 25 °F
Mean Temp: 34 °F
Precipitation: 2.54"
Humidity: 73%
Dew Point: 26 °F
Wind: 14 mph
Pressure: 30.16 "Hg
Visibility: 9 mi
February Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 47 °F
Low Temp: 29 °F
Mean Temp: 38 °F
Precipitation: 2.49"
Humidity: 70%
Dew Point: 28 °F
Wind: 14 mph
Pressure: 30.13 "Hg
Visibility: 9 mi
March Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 57 °F
Low Temp: 37 °F
Mean Temp: 47 °F
Precipitation: 4.08"
Humidity: 66%
Dew Point: 36 °F
Wind: 14 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
April Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 68 °F
Low Temp: 46 °F
Mean Temp: 57 °F
Precipitation: 4.74"
Humidity: 65%
Dew Point: 45 °F
Wind: 15 mph
Pressure: 29.98 "Hg
Visibility: 10 mi
May Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 77 °F
Low Temp: 56 °F
Mean Temp: 67 °F
Precipitation: 4.26"
Humidity: 71%
Dew Point: 57 °F
Wind: 12 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
June Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 86 °F
Low Temp: 65 °F
Mean Temp: 76 °F
Precipitation: 4.19"
Humidity: 70%
Dew Point: 65 °F
Wind: 10 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
July Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 89 °F
Low Temp: 69 °F
Mean Temp: 79 °F
Precipitation: 3.62"
Humidity: 73%
Dew Point: 69 °F
Wind: 8 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
August Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 87 °F
Low Temp: 66 °F
Mean Temp: 77 °F
Precipitation: 2.72"
Humidity: 74%
Dew Point: 68 °F
Wind: 7 mph
Pressure: 30.01 "Hg
Visibility: 8 mi
September Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 81 °F
Low Temp: 57 °F
Mean Temp: 69 °F
Precipitation: 3.09"
Humidity: 73%
Dew Point: 60 °F
Wind: 7 mph
Pressure: 30.04 "Hg
Visibility: 8 mi
October Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 70 °F
Low Temp: 46 °F
Mean Temp: 58 °F
Precipitation: 3.46"
Humidity: 69%
Dew Point: 48 °F
Wind: 10 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
November Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 57 °F
Low Temp: 36 °F
Mean Temp: 46 °F
Precipitation: 3.51"
Humidity: 70%
Dew Point: 36 °F
Wind: 13 mph
Pressure: 30.14 "Hg
Visibility: 9 mi
December Climate & Weather Averages in 38°29'29.5"N, 89°01'42.9"W
High Temp: 46 °F
Low Temp: 29 °F
Mean Temp: 37 °F
Precipitation: 3.10"
Humidity: 75%
Dew Point: 30 °F
Wind: 13 mph
Pressure: 30.14 "Hg
Visibility: 9 mi