Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

A Few Clouds

72°F

22°C

Humidity	73%
Wind Speed	S 8 mph
Barometer	30.02 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	30 Aug 1:15 am CDT

More Information:

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

Extended Forecast for

Lemont IL

Overnight
Low: 68 °F
Slight Chance
T-storms
Sunday
High: 84 °F
Chance
T-storms then
Slight Chance
Showers
Sunday Night
Low: 70 °F
Mostly Cloudy
Monday
High: 90 °F
Slight Chance
T-storms then
Mostly Sunny
Monday Night
Low: 73 °F
Partly Cloudy
Tuesday
High: 92 °F
Mostly Sunny
Tuesday Night
Low: 75 °F
Partly Cloudy
Wednesday
High: 93 °F
Sunny
Wednesday Night
Low: 74 °F
Partly Cloudy

Detailed Forecast

Overnight

A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Sunday

A chance of showers and thunderstorms before 1pm, then a slight chance of showers after 3pm. Mostly cloudy, with a high near 84. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Sunday Night

Mostly cloudy, with a low around 70. South southwest wind around 10 mph, with gusts as high as 15 mph.

Monday

A 10 percent chance of showers and thunderstorms before 7am. Partly sunny, with a high near 90. Heat index values as high as 95. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Partly cloudy, with a low around 73. South southwest wind 5 to 10 mph.

Tuesday

Mostly sunny, with a high near 92.

Tuesday Night

Partly cloudy, with a low around 75.

Wednesday

Sunny, with a high near 93.

Wednesday Night

Partly cloudy, with a low around 74.

Thursday

A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89.