Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. 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.

Fair

75°F

24°C

Humidity	79%
Wind Speed	W 5 mph
Barometer	29.90 in (1011.2 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	12 Aug 9:51 pm CDT

More Information:

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

Extended Forecast for

Winthrop Harbor IL

Tonight
Low: 67 °F
Isolated
T-storms then
Partly Cloudy
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 67 °F
Mostly Clear
Thursday
High: 76 °F
Sunny
Thursday Night
Low: 67 °F
Mostly Clear
Friday
High: 81 °F
Sunny
Friday Night
Low: 71 °F
Mostly Clear
Saturday
High: 90 °F
Mostly Sunny
Saturday Night
Low: 73 °F
Partly Cloudy

Detailed Forecast

Tonight

Isolated showers and thunderstorms before 11pm. Partly cloudy, with a low around 67. West southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

Wednesday

Sunny, with a high near 77. North northwest wind 5 to 10 mph becoming northeast in the afternoon.

Wednesday Night

Mostly clear, with a low around 67. Northeast wind around 5 mph.

Thursday

Sunny, with a high near 76. East northeast wind around 5 mph.

Thursday Night

Mostly clear, with a low around 67. Northeast wind around 5 mph becoming south southeast after midnight.

Friday

Sunny, with a high near 81.

Friday Night

Mostly clear, with a low around 71.