Chicago, IL Weather Forecast and Current Conditions

Day		Sky	High / Low	Precip	Wind	Humidity
Tue Jul 21		Partly Cloudy/Wind Close Hourly	-º / 62º	21%	NNE 20 mph	77%
11pm		Cloudy/Wind	69º	5%	NNE 20 mph	81%
Wed Jul 22		Partly Cloudy View Hourly	72º / 60º	14%	NNE 12 mph	58%
12am		Cloudy/Wind	68º	4%	NNE 20 mph	81%
1am		Cloudy	67º	5%	NNE 17 mph	78%
2am		Mostly Cloudy	67º	5%	NNE 13 mph	74%
3am		Mostly Cloudy	67º	3%	NNE 12 mph	73%
4am		Partly Cloudy	66º	3%	N 11 mph	72%
5am		Partly Cloudy	65º	11%	N 11 mph	73%
6am		Partly Cloudy	63º	21%	N 11 mph	75%
7am		Partly Cloudy	64º	14%	N 11 mph	74%
8am		Partly Cloudy	65º	2%	N 12 mph	72%
9am		Partly Cloudy	66º	1%	N 12 mph	67%
10am		Partly Cloudy	68º	1%	N 11 mph	63%
11am		Partly Cloudy	68º	2%	N 11 mph	60%
12pm		Partly Cloudy	69º	0%	N 11 mph	59%
1pm		Partly Cloudy	69º	1%	NNE 11 mph	56%
2pm		Mostly Sunny	70º	1%	NNE 11 mph	52%
3pm		Sunny	70º	0%	NNE 11 mph	50%
4pm		Mostly Sunny	71º	0%	NE 10 mph	49%
5pm		Mostly Sunny	71º	0%	NE 10 mph	48%
6pm		Partly Cloudy	71º	0%	NE 9 mph	48%
7pm		Partly Cloudy	70º	0%	NE 8 mph	50%
8pm		Partly Cloudy	69º	0%	NE 6 mph	53%
9pm		Mostly Clear	68º	0%	NE 5 mph	57%
10pm		Clear	67º	0%	NE 4 mph	61%
11pm		Clear	66º	0%	NNE 4 mph	63%
Thu Jul 23		Mostly Sunny View Hourly	76º / 63º	2%	E 8 mph	54%
12am		Clear	65º	1%	NNE 3 mph	64%
1am		Clear	65º	1%	NNE 2 mph	67%
2am		Clear	64º	2%	N 2 mph	70%
3am		Clear	63º	3%	NW 2 mph	75%
4am		Mostly Clear	62º	4%	NW 2 mph	77%
5am		Mostly Clear	61º	4%	WNW 2 mph	79%
6am		Sunny	61º	4%	WNW 3 mph	81%
7am		Sunny	63º	2%	WNW 3 mph	78%
8am		Sunny	66º	1%	WNW 4 mph	69%
9am		Sunny	69º	0%	W 4 mph	60%
10am		Sunny	71º	0%	WNW 4 mph	55%
11am		Sunny	72º	0%	E 4 mph	52%
12pm		Sunny	74º	0%	E 5 mph	49%
1pm		Mostly Sunny	74º	0%	E 6 mph	48%
2pm		Partly Cloudy	74º	0%	E 6 mph	47%
3pm		Partly Cloudy	74º	0%	E 7 mph	47%
4pm		Partly Cloudy	74º	0%	E 8 mph	47%
5pm		Partly Cloudy	75º	0%	ESE 8 mph	47%
6pm		Partly Cloudy	74º	0%	ESE 8 mph	47%
7pm		Partly Cloudy	74º	0%	ESE 7 mph	49%
8pm		Partly Cloudy	73º	0%	SE 6 mph	52%
9pm		Partly Cloudy	72º	0%	SE 5 mph	57%
10pm		Mostly Cloudy	71º	1%	SE 6 mph	61%
Fri Jul 24		Partly Cloudy	80º / 65º	3%	SSE 9 mph	55%
Sat Jul 25		Partly Cloudy	84º / 72º	4%	SW 11 mph	68%
Sun Jul 26		Isolated Thunderstorms	86º / 72º	31%	SW 11 mph	73%
Mon Jul 27		Mostly Sunny	85º / 70º	24%	WNW 13 mph	69%
Tue Jul 28		Mostly Sunny	80º / 68º	17%	N 12 mph	73%

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General Weather Conditions in Chicago, IL

Chicago, IL, is located on the extreme southwestern shore of Lake Michigan and in the northeastern portion of the state. The location averages about 18 days each year with maximum temperatures in excess of 90°F (32.2°C). July is the warmest month with an average high of 84°F (28.9°C) and an average minimum of 63°F (17.2°C). January is the coolest month with an average high of 29°F (-2°C) and an average minimum of 14°F (-10°C). The highest temperature on record for Chicago is 104°F (40°C), recorded in June 1988 and July 1995, and the lowest temperature on record is -27°F (-32.8°C), recorded in January 1985. About 132 days each year experience temperatures below 32°F (0°C), and an average twenty days each year records temperatures below 5°F (-15°C). Every month has seen temperatures at or below 41°F (5°C) and every month except June, July and August has recorded temperatures below freezing (0°C).

The average annual precipitation for Chicago is 35.25 inches (895 mm). An annual maximum occurs during the summer, due mainly to convective activity, and a marked dry period occurs during the winter months. Precipitation falls on about 190 days each year. The wettest month is August with 4.10 inches (104 mm), and the driest, February, averages only 1.37 inches (34.8 mm). An average of 37 thunderstorm days occur each year with June, July and August being the most likely months. Snow falls on about 68 days each year and averages about 38 inches (965 mm) each year. January averages about ten inches (254 mm) per year and December averages about eight inches (203 mm) each year. Ten-inch (254 mm) snowfalls in a 24-hour period have occurred in each month December, January, February and April. About seven days each year have a snowfall total greater than 1.5 inches (38 mm), and snow has fallen in every month except June through September. Fog is present on average 131 days each year and is rather evenly distributed throughout the year with a slight maximum during the winter season. (658) The prevailing wind direction in Chicago is the south-southwest. The average wind speed is nine knots. Winter through early spring is the windiest period, and a maximum gust of 73 knots occurred in March 1991.

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