Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

66°F

19°C

Humidity	60%
Wind Speed	S 12 mph
Barometer	29.79 in
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	17 Oct 8:55 pm CDT

More Information:

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

Extended Forecast for

4 Miles SE Lemont IL

Tonight
Low: 63 °F
Mostly Cloudy
then Chance
Showers
Saturday
High: 74 °F
Showers
Likely
Saturday Night
Low: 51 °F
Showers
Sunday
High: 57 °F
Showers
Likely and
Breezy
Sunday Night
Low: 41 °F
Mostly Clear
Monday
High: 65 °F
Sunny
Monday Night
Low: 46 °F
Chance
Showers
Tuesday
High: 54 °F
Mostly Sunny
and Breezy
Tuesday Night
Low: 39 °F
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 63. South southwest wind around 15 mph, with gusts as high as 20 mph.

Saturday

Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers likely and possibly a thunderstorm, then showers after 10pm. Low around 51. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Sunday

Showers likely before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

Sunday Night

Mostly clear, with a low around 41. West wind 5 to 10 mph, with gusts as high as 20 mph.

Monday

Sunny, with a high near 65.

Monday Night

A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 46.

Tuesday

Mostly sunny, with a high near 54. Breezy.

Tuesday Night

Partly cloudy, with a low around 39.

Wednesday

Sunny, with a high near 57.