Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

69°F

21°C

Humidity	73%
Wind Speed	SW 10 mph
Barometer	29.94 in (1012.8 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Last update	26 Aug 6:53 am CDT

More Information:

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

Extended Forecast for

Lyons IL

Today
High: 85 °F
Slight Chance
T-storms
Tonight
Low: 67 °F
Mostly Clear
Thursday
High: 81 °F
Sunny then
Slight Chance
Showers
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 63 °F
Partly Cloudy
Saturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Cloudy
Sunday
High: 87 °F
Mostly Sunny

Detailed Forecast

Today

A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 67. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

Thursday

A slight chance of showers between 1pm and 4pm. Increasing clouds, with a high near 81. Northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

Thursday Night

Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 63.

Saturday

Mostly sunny, with a high near 82.

Saturday Night

Mostly cloudy, with a low around 68.

Sunday

Mostly sunny, with a high near 87.