Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. 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	96%
Wind Speed	SW 7 mph
Barometer	29.85 in (1010.0 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	10 Aug 1:51 am CDT

More Information:

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

Extended Forecast for

Mc Henry IL

Severe T-storm Watch until August 10, 04:00am

Flood Watch August 10, 02:04am until August 10, 07:00am

Click here for hazard details and duration

Severe T-storm Watch

Flood Watch

Severe T-storm Watch until August 10, 04:00am
Flood Watch August 10, 02:04am until August 10, 07:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 69 °F
Chance
T-storms
Monday
High: 83 °F
Chance
T-storms
Monday Night
Low: 67 °F
Chance
T-storms
Tuesday
High: 81 °F
T-storms
Likely
Tuesday Night
Low: 66 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 82 °F
Chance
Showers
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 78 °F
Partly Sunny
then Chance
Showers

Detailed Forecast

Overnight

A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 69. West southwest wind around 5 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 83. West northwest wind around 5 mph becoming east southeast in the afternoon.

Monday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.

Tuesday

Showers and thunderstorms likely, mainly between 9am and 1pm. Cloudy, with a high near 81. East southeast wind around 5 mph becoming west northwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 70%.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

Wednesday

A chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

Wednesday Night

Partly cloudy, with a low around 66.

Thursday

A chance of showers after 1pm. Mostly cloudy, with a high near 78.

Thursday Night

Mostly cloudy, with a low around 61.

Friday

Mostly cloudy, with a high near 75.

Friday Night

A chance of showers. Mostly cloudy, with a low around 61.

Saturday

A chance of showers. Mostly cloudy, with a high near 77.