Belleville, IL Weather

Belleville, IL climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.

The warmest month of the year is July with an average maximum temperature of 89.60 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 22.10 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 24 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.

The annual average precipitation at Belleville is 39.37 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 4.18 Inches.

Weather Data

Current Conditions

(Updated: 12:55 PM CST TUE NOV 24 2009)

Light Rain, 53°F	Humidity: 99%	Dewpoint: 53°F
	Wind Speed: SE 13.8 MPH (12 KT)	Heat Index: 53°F
	Barometer: 29.85 in.	Wind Chill: 49°F

Weather Forecast

(Generated: 12:19 PM CST TUE NOV 24 2009)

	Hi: 55°F	This afternoon: Showers likely and isolated thunderstorms. High in the mid 50s. Temperature steady or slowly falling through late afternoon. South wind 10 to 15 mph with gusts to around 25 mph. Chance of rain 70 percent.
	Lo: 40°F
	Hi: 51°F	Wednesday: Mostly cloudy. High in the lower 50s. West wind 10 to 15 mph with gusts to around 25 mph.
	Lo: 31°F
	Hi: 41°F	Thanksgiving day: Colder. Mostly cloudy. High in the lower 40s. West wind around 15 mph with gusts to around 25 mph.
	Lo: 30°F
	Hi: 49°F	Friday: Partly cloudy. High in the upper 40s.
	Lo: 35°F
	Hi: 59°F	Saturday: Mostly clear. Low in the mid 30s. High in the upper 50s.
	Lo: 41°F
	Hi: 51°F	Sunday: Mostly cloudy with a 30 percent chance of rain. High in the lower 50s. Low in the lower 40s.
	Lo: 41°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:21 AM CST	Sunrise: 6:50 AM CST
		Sunset: 4:41 PM CST	Civil Twilight: 5:10 PM CST

Normal Climate

Normal Temperatures

(BELLEVILLE SIU RESEARCH Weather station, 7.24 miles from Belleville)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	39.6	46.1	57.2	68.0	77.3	85.7	89.6	87.8	81.6	71.0	56.0	43.7	67.0
Mean °F	30.9	36.4	46.4	56.3	65.6	74.1	78.1	75.8	68.8	58.0	46.1	35.1	56.0
Min °F	22.1	26.7	35.5	44.6	53.9	62.5	66.5	63.7	56.0	45.0	36.1	26.5	44.9

Normal Precipitation