Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

72°F

22°C

Humidity 100%
Wind Speed S 7 mph
Barometer 30.05 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 16 Aug 4:55 am CDT
Extended Forecast for

2 Miles NNW New Lenox IL

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 72. South southwest wind around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 92. Heat index values as high as 104. South southwest wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 86. Northeast wind 5 to 10 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 104. South southwest wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming north after midnight.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Northeast wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73.
Tuesday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
Partly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW New Lenox IL
 41.54°N 87.99°W
4:26 am CDT Aug 16, 2025
5am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database