Wilmette, IL Weather

Wilmette, 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 83.20 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 13.70 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 20 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.

The annual average precipitation at Wilmette is 36.80 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is August with an average rainfall of 4.84 Inches.

Weather Data

Current Conditions

(Updated: 12:52 AM CST WED NOV 25 2009)

Overcast, 47°F	Humidity: 83%	Dewpoint: 42°F
	Wind Speed: SW 11.5 MPH G 17.3 (10 MPH G 15 KT)	Heat Index: 47°F
	Barometer: 29.72 in.	Wind Chill: 42°F

Weather Forecast

(Generated: 10:08 PM CST TUE NOV 24 2009)

		Tonight: Showers. Lows in the mid 40s. Southeast winds 10 to 15 mph late in the evening shifting to the southwest 10 to 20 mph after midnight. Chance of precipitation 90 percent.
	Lo: 45°F
	Hi: 49°F	Wednesday: Light showers likely. Highs in the upper 40s. West winds 10 to 20 mph. Gusts up to 30 mph late in the morning then 30 mph late in the afternoon. Chance of precipitation 60 percent.
	Lo: 35°F
	Hi: 41°F	Thanksgiving day: Cloudy with light rain showers and light snow showers likely. Highs in the lower 40s. Northwest winds 10 to 20 mph. Chance of precipitation 60 percent.
	Lo: 31°F
	Hi: 41°F	Friday: Partly sunny. Highs in the lower 40s.
	Lo: 31°F
	Hi: 49°F	Saturday: Mostly sunny. Highs in the upper 40s.
	Lo: 35°F
	Hi: 45°F	Sunday: Partly cloudy with a 30 percent chance of light rain. Highs in the mid 40s.
	Lo: 35°F
	Hi: 41°F	Monday: Mostly cloudy with a 20 percent chance of light rain and light snow. Highs in the lower 40s. Lows in the lower 30s.
	Lo: 31°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:20 AM CST	Sunrise: 6:51 AM CST
		Sunset: 4:23 PM CST	Civil Twilight: 4:54 PM CST

Normal Climate

Normal Temperatures

(CHICAGO BOTANICAL GARDEN Weather station, 4.95 miles from Wilmette)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	30.2	35.0	44.5	55.8	67.4	77.8	83.2	81.3	74.5	63.0	48.5	35.7	58.1
Mean °F	22.0	26.6	36.1	46.3	57.1	66.9	72.9	71.5	64.0	52.4	40.3	28.0	48.7
Min °F	13.7	18.1	27.7	36.8	46.7	55.9	62.5	61.7	53.5	41.8	32.1	20.2	39.2

Normal Precipitation