Buffalo Grove, IL Weather

Buffalo Grove, 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 Buffalo Grove 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: 2:52 PM CST WED NOV 25 2009)

Overcast, 48°F	Humidity: 80%	Dewpoint: 42°F
	Wind Speed: SW 4.6 MPH (4 KT)	Heat Index: 48°F
	Barometer: 29.71 in.	Wind Chill: 46°F

Weather Forecast

(Generated: 9:26 AM CST WED NOV 25 2009)

	Hi: 49°F	Rest of today: Cloudy. Chance of showers and patchy drizzle late in the morning...Then showers likely in the afternoon. Highs in the upper 40s. West winds 10 to 15 mph. Chance of measurable precipitation 70 percent.
	Lo: 31°F
	Hi: 41°F	Thanksgiving day: Cloudy. Light rain showers and light snow showers likely in the morning...Then a chance of light snow showers in the afternoon. No snow accumulation. Highs in the lower 40s. Northwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation 60 percent.
	Lo: 29°F
	Hi: 45°F	Friday: Partly cloudy. Highs in the mid 40s. West winds 10 to 15 mph.
	Lo: 31°F
	Hi: 49°F	Saturday: Mostly sunny. Highs in the upper 40s.
	Lo: 31°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: Partly cloudy with a 20 percent chance of light rain and light snow. Highs in the lower 40s. Lows around 30.
	Lo: 30°F
	Hi: 41°F	Tuesday: Partly cloudy with a 20 percent chance of light rain and light snow. Highs in the lower 40s. Lows around 30.
	Lo: 30°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:23 AM CST	Sunrise: 6:53 AM CST
		Sunset: 4:23 PM CST	Civil Twilight: 4:54 PM CST

Normal Climate

Normal Temperatures

(CHICAGO BOTANICAL GARDEN Weather station, 9.33 miles from Buffalo Grove)

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