



Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest
Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >
Current conditions at
Lewis University Airport (KLOT)
Lat: 41.6°NLon: 88.1°WElev: 669ft.
Fair
55°F
13°C
Humidity | 72% |
Wind Speed | W 3 mph |
Barometer | 30.11 in |
Dewpoint | 46°F (8°C) |
Visibility | 10.00 mi |
Last update | 6 Sep 10:35 pm CDT |
Extended Forecast for
Lemont IL
Tonight
Low: 43 °F
Slight Chance
SprinklesSunday
High: 69 °F
Sunny
Sunday Night
Low: 45 °F
Mostly Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 51 °F
Partly Cloudy
Tuesday
High: 78 °F
Mostly Sunny
Tuesday Night
Low: 56 °F
Mostly Cloudy
Wednesday
High: 83 °F
Sunny
Wednesday Night
Low: 60 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of sprinkles before midnight. Mostly cloudy, then gradually becoming clear, with a low around 43. West wind around 5 mph.
Sunday
Sunny, with a high near 69. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 73. Light south wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 51. South wind around 5 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Lemont IL
41.65°N 88.01°W
41.65°N 88.01°W
8:56 pm CDT Sep 6, 2025
10pm CDT Sep 6, 2025-6pm CDT Sep 13, 2025