Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Mostly Cloudy

87°F

31°C

Humidity 67%
Wind Speed SW 5 mph
Barometer 30.00 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 23 Jul 11:55 am CDT
Extended Forecast for

New Lenox IL

Heat Advisory until July 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until July 23, 07:00pm

    NOW until
    7:00pm Sat

    Heat Advisory

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 3pm.  Partly sunny, with a high near 90. Heat index values as high as 106. Calm wind becoming south southwest around 5 mph.  Chance of precipitation is 30%.

    Scattered
    T-storms

    High: 90 °F

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after midnight.  Mostly cloudy, with a low around 74. South wind around 5 mph.

    Isolated
    T-storms then
    Chance
    T-storms

    Low: 74 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. Heat index values as high as 106. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Chance
    T-storms

    High: 91 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. West southwest wind 5 to 10 mph becoming northwest after midnight.

    Chance
    T-storms

    Low: 71 °F

  • Monday

    Monday: Mostly sunny, with a high near 86. Northwest wind around 5 mph.

    Mostly Sunny

    High: 86 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 66.

    Mostly Clear

    Low: 66 °F

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 67.

    Mostly Clear

    Low: 67 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 90. Heat index values as high as 106. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 30%.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 74. South wind around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 106. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. West southwest wind 5 to 10 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 86. Northwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
New Lenox IL
 41.52°N 87.99°W
11:17 am CDT Jul 23, 2016
12pm CDT Jul 23, 2016-6pm CDT Jul 29, 2016
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database