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

78°F

26°C

Humidity	93%
Wind Speed	SW 9 mph
Barometer	29.84 in (1009.0 mb)
Dewpoint	76°F (24°C)
Visibility	9.00 mi
Heat Index	81°F (27°C)
Last update	27 Jul 1:53 am CDT

More Information:

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

Extended Forecast for

Orland Park IL

Overnight
Low: 76 °F
Slight Chance
T-storms
Monday
High: 91 °F
T-storms
Likely then
Showers
Likely
Monday Night
Low: 70 °F
Chance
T-storms then
Mostly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Wednesday Night
Low: 65 °F
Mostly Clear
Thursday
High: 85 °F
Sunny
Thursday Night
Low: 68 °F
Partly Cloudy

Detailed Forecast

Overnight

A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 76. South southwest wind around 5 mph.

Monday

Showers and thunderstorms likely before 3pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 91. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A 50 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 70. West southwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

Tuesday

Mostly sunny, with a high near 79. North wind around 15 mph, with gusts as high as 25 mph.

Tuesday Night

Mostly clear, with a low around 64. North wind 5 to 15 mph, with gusts as high as 20 mph.

Wednesday

Sunny, with a high near 82.

Wednesday Night

Mostly clear, with a low around 65.

Thursday

Sunny, with a high near 85.

Thursday Night

Partly cloudy, with a low around 68.