Chicago, IL Weather

Chicago, 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 20's.

The warmest month of the year is July with an average maximum temperature of 84.40 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 18.30 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 18 degrees Fahrenheit, and fairly limited during winter with an average difference of 14 degrees Fahrenheit.

The annual average precipitation at Chicago is 38.01 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.30 Inches.

Weather Data

Current Conditions

(Updated: 5:51 AM CDT TUE MAY 22 2012)

Partly Cloudy, 50°F	Humidity: 83%	Dewpoint: 45°F
	Wind Speed: NW 9.2 MPH (8 KT)	Heat Index: 50°F
	Barometer: 30.09 in.	Wind Chill: 46°F

Weather Forecast

(Generated: 4:03 AM CDT TUE MAY 22 2012)

	Hi: 70°F	Today: Sunny. Highs ranging from the low to mid 60s near the lake to the lower 70s well inland. Northeast winds 10 to 15 mph.

	Hi: 70°F	Wednesday: Sunny...Warmer. Highs from around 70 along the lake to around 80 inland. South winds 10 to 15 mph...Becoming southeast along the lake by afternoon.
	Lo: 60°F
	Hi: 89°F	Thursday: Sunny...Windy. Much warmer. Highs in the upper 80s. South winds 15 to 25 mph with gusts up to 35 mph.
	Lo: 70°F
		Friday: Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs from the mid 70s north shore to the mid to upper 80s south and southwest suburbs.

		Saturday: Mostly clear. Highs from the mid 70s north shore areas to the upper 80s far south. Lows in the mid to upper 60s.

	Hi: 90°F	Sunday: Mostly sunny. Highs near 90.
	Lo: 69°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Crescent Moon	Civil Twilight: 4:51 AM CDT	Sunrise: 5:24 AM CDT
		Sunset: 8:10 PM CDT	Civil Twilight: 8:42 PM CDT

Normal Climate

Normal Temperatures

(CHICAGO UNIVERSITY Weather station, 5.48 miles from Chicago)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	32.2	37.4	47.4	58.9	70.2	80.3	84.4	82.7	76.2	64.3	49.4	37.1	60.0
Mean °F	25.3	30.7	39.8	50.2	60.8	70.6	75.4	74.0	66.8	55.3	42.3	30.3	51.8
Min °F	18.3	23.9	32.2	41.5	51.3	60.8	66.3	65.3	57.4	46.2	35.1	23.5	43.5

Normal Precipitation