Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 27 Jul 3:50 am CDT
Extended Forecast for

Homer Glen IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms.  Patchy fog.  Otherwise, mostly cloudy, with a low around 73. West southwest wind around 5 mph.

    Low: 73 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 104. Southwest wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. West southwest wind around 5 mph becoming south in the evening.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

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

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 73. West southwest wind around 5 mph.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 74. South wind around 5 mph.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 104. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 75. West southwest wind around 5 mph becoming south in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Homer Glen IL
 41.63°N 87.99°W
3:26 am CDT Jul 27, 2025
4am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database