Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fair

79°F

26°C

Humidity	94%
Wind Speed	S 8 mph
Barometer	29.84 in (1009.3 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	27 Jul 12:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Chicago IL

Overnight
Low: 78 °F
Chance
Showers
Monday
High: 89 °F
Heavy Rain
then Slight
Chance
T-storms
Monday Night
Low: 71 °F
Chance
T-storms
Tuesday
High: 76 °F
Becoming
Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 70 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 78. South southwest wind around 5 mph, with gusts as high as 10 mph.

Monday

Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 89. Heat index values as high as 99. South wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. Southwest wind 10 to 15 mph becoming north after midnight.

Tuesday

Mostly cloudy through mid morning, then gradual clearing, with a high near 76. North wind around 15 mph, with gusts as high as 25 mph.

Tuesday Night

Mostly clear, with a low around 68. North wind 5 to 15 mph, with gusts as high as 20 mph.

Wednesday

Sunny, with a high near 78.

Wednesday Night

Mostly clear, with a low around 68.

Thursday

Sunny, with a high near 84.

Thursday Night

Mostly cloudy, with a low around 70.