Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair and Windy

91°F

33°C

Humidity	67%
Wind Speed	S 26 G 33 mph
Barometer	29.84 in
Dewpoint	79°F (26°C)
Visibility	10.00 mi
Heat Index	107°F (42°C)
Last update	21 Jun 3:45 pm CDT

More Information:

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

Extended Forecast for

2 Miles WNW Darien IL

Heat Advisory June 21, 04:32pm until June 24, 12:00am

Click here for hazard details and duration

Heat Advisory

Heat Advisory June 21, 04:32pm until June 24, 12:00am
NOW until 12:00am Tue
Heat Advisory
Tonight
Low: 78 °F
Clear and
Breezy then
Clear
Sunday
High: 95 °F
Sunny then
Sunny and
Breezy
Sunday Night
Low: 78 °F
Clear
Monday
High: 96 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 93 °F
Chance
T-storms
Tuesday Night
Low: 71 °F
Chance
T-storms
Wednesday
High: 90 °F
T-storms
Likely

Detailed Forecast

Tonight

Clear, with a low around 78. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 40 mph.

Sunday

Sunny and hot, with a high near 95. Heat index values as high as 105. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

Sunday Night

Clear, with a low around 78. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday

Sunny and hot, with a high near 96. Heat index values as high as 102. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Monday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Wednesday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Thursday

Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71.