Areas of Heavy to Excessive Rainfall Which May Bring Flooding

Monsoon moisture will continue to produce areas of heavy to excessive rainfall and potential flooding across the northern Intermountain West today. Debris flows will be possible over recent wildfire burn areas. Heavy to excessive rainfall and flash flooding will be possible across the central Rockies into the south-central Plains and lower Mississippi Valley through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy

73°F

23°C

Humidity	51%
Wind Speed	W 6 mph
Barometer	30.12 in (1019.5 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	27 Aug 5:51 pm CDT

More Information:

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

Extended Forecast for

Zion IL

Tonight
Low: 62 °F
Partly Cloudy
then Showers
Likely
Thursday
High: 71 °F
Showers
Likely then
Isolated
Showers
Thursday Night
Low: 57 °F
Partly Cloudy
Friday
High: 67 °F
Mostly Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 70 °F
Mostly Sunny
Saturday Night
Low: 58 °F
Partly Cloudy
Sunday
High: 73 °F
Sunny
Sunday Night
Low: 60 °F
Mostly Clear

Detailed Forecast

Tonight

Isolated showers before 1am, then scattered showers and thunderstorms between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 62. West southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely and possibly a thunderstorm before 10am, then isolated showers. Mostly cloudy, with a high near 71. West wind 5 to 15 mph becoming north northeast in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Partly cloudy, with a low around 57. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

Friday

Mostly sunny, with a high near 67. Northeast wind 5 to 10 mph.

Friday Night

Mostly clear, with a low around 55. Northeast wind around 5 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 70.

Saturday Night

Partly cloudy, with a low around 58.

Sunday

Sunny, with a high near 73.