Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

74°F

23°C

Humidity	50%
Wind Speed	SE 10 mph
Barometer	30.07 in (1017.6 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	24 Jul 5:51 pm CDT

More Information:

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

Extended Forecast for

Great Lakes IL

Tonight
Low: 63 °F
Mostly Clear
Saturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 70 °F
Partly Cloudy
Sunday
High: 91 °F
Partly Sunny
Sunday Night
Low: 74 °F
Chance
T-storms
Monday
High: 91 °F
Chance
T-storms
Monday Night
Low: 71 °F
Slight Chance
T-storms
Tuesday
High: 81 °F
Mostly Sunny
Tuesday Night
Low: 67 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 63. Southeast wind 5 to 10 mph becoming southwest after midnight.

Saturday

Mostly sunny, with a high near 82. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Saturday Night

Partly cloudy, with a low around 70. Southwest wind around 5 mph, with gusts as high as 10 mph.

Sunday

Partly sunny, with a high near 91. Heat index values as high as 101. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Sunday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. West southwest wind around 10 mph, with gusts as high as 15 mph.

Monday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

Monday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.

Tuesday

Mostly sunny, with a high near 81.

Tuesday Night

Mostly clear, with a low around 67.

Wednesday

Mostly sunny, with a high near 81.

Wednesday Night

Mostly clear, with a low around 68.