Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this 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

73°F

23°C

Humidity	83%
Wind Speed	S 6 mph
Barometer	29.97 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	31 Aug 1:50 am CDT

More Information:

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

Extended Forecast for

Lockport IL

Overnight
Low: 71 °F
Slight Chance
T-storms
Monday
High: 88 °F
Chance
T-storms then
Mostly Sunny
Monday Night
Low: 73 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 90 °F
Slight Chance
T-storms
Tuesday Night
Low: 73 °F
Mostly Clear
Wednesday
High: 92 °F
Sunny
Wednesday Night
Low: 72 °F
Mostly Clear
then Slight
Chance
T-storms
Thursday
High: 88 °F
Chance
T-storms
Thursday Night
Low: 71 °F
Partly Cloudy

Detailed Forecast

Overnight

A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. South wind around 10 mph, with gusts as high as 15 mph.

Monday

A 40 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 88. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 73. South southwest wind 5 to 10 mph.

Tuesday

A slight chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 90. Heat index values as high as 99. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 73. South southwest wind around 5 mph, with gusts as high as 10 mph.

Wednesday

Sunny, with a high near 92.

Wednesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

Thursday

A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.

Thursday Night

Partly cloudy, with a low around 71.

Friday

Mostly sunny, with a high near 88.