West Allis, WI Weather

West Allis, WI 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 81.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 12.70 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 16 degrees Fahrenheit, and fairly limited during winter with an average difference of 14 degrees Fahrenheit.

The annual average precipitation at West Allis is 33.86 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is August with an average rainfall of 3.93 Inches.

Weather Data

Current Conditions

(Updated: 5:52 PM CST TUE NOV 24 2009)

Fog And Mist, 48°F	Humidity: 93%	Dewpoint: 46°F
	Wind Speed: E 11.5 MPH (10 KT)	Heat Index: 48°F
	Barometer: 29.88 in.	Wind Chill: 43°F

Weather Forecast

(Generated: 3:32 PM CST TUE NOV 24 2009)

		Tonight: Light rain. Areas of fog in the late evening and overnight. Near steady temperature in the mid 40s. Southeast winds 5 to 10 mph shifting to the south early in the morning. Chance of rain near 100 percent.
	Lo: 45°F
	Hi: 45°F	Wednesday: Cloudy with scattered light rain showers and areas of drizzle. Near steady temperature in the mid 40s. West winds 5 to 15 mph. Chance of showers 50 percent.
	Lo: 35°F
	Hi: 41°F	Thanksgiving day: Cloudy. Rain and snow likely through late morning...Then chance of light snow in the afternoon. Snow accumulation up to 1 inch. Total snow accumulation 1 to 2 inches. Highs in the lower 40s. Northwest winds 10 to 20 mph. Chance of precipitation 60 percent.
	Lo: 31°F
	Hi: 40°F	Friday: Partly sunny. Highs around 40.
	Lo: 30°F
	Hi: 45°F	Saturday: Sunny. Highs in the mid 40s.
	Lo: 35°F
	Hi: 41°F	Sunday: Partly sunny with a 40 percent chance of light rain. Highs in the lower 40s.
	Lo: 31°F
	Hi: 41°F	Monday: Mostly cloudy with a 30 percent chance of light snow. Highs in the lower 40s.
	Lo: 31°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Gibbous Moon	Civil Twilight: 6:23 AM CST	Sunrise: 6:54 AM CST
		Sunset: 4:21 PM CST	Civil Twilight: 4:53 PM CST

Normal Climate

Normal Temperatures

(WEST ALLIS Weather station, 0.41 miles from West Allis)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	27.1	31.8	41.9	54.0	67.2	77.2	81.9	80.0	73.0	60.9	45.9	32.9	56.2
Mean °F	19.9	24.7	34.5	46.1	58.6	68.3	73.8	72.0	64.0	52.3	38.5	26.1	48.2
Min °F	12.7	17.5	27.1	38.2	49.9	59.3	65.6	64.0	54.9	43.7	31.0	19.3	40.3

Normal Precipitation