Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

A Few Clouds

79°F

26°C

Humidity	74%
Wind Speed	SE 8 mph
Barometer	29.93 in (1012.2 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	12 Aug 12:51 pm CDT

More Information:

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

Extended Forecast for

Round Lake IL

This Afternoon
High: 82 °F
T-storms
Likely
Tonight
Low: 64 °F
T-storms
Likely then
Slight Chance
T-storms
Wednesday
High: 82 °F
Mostly Sunny
Wednesday Night
Low: 60 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 61 °F
Mostly Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 70 °F
Mostly Clear
Saturday
High: 92 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 4pm. Mostly cloudy, with a high near 82. West southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, mainly before 7pm. Partly cloudy, with a low around 64. West southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Mostly sunny, with a high near 82. North northwest wind around 5 mph, with gusts as high as 10 mph.

Wednesday Night

Mostly clear, with a low around 60. North wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 80. Calm wind becoming east northeast around 5 mph in the afternoon.

Thursday Night

Mostly clear, with a low around 61.

Friday

Sunny, with a high near 86.

Friday Night

Mostly clear, with a low around 70.