Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Severe thunderstorms producing damaging winds, hail and possibly a few tornadoes are expected across parts of the central Plains and the Missouri Valley. Heavy rainfall and flash flooding is also expected in the area. Thunderstorms and heavy rain may also bring additional flooding impacts to the central Appalachians. High temperatures and critical fire weather conditions expected in the Southwest. 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

92°F

33°C

Humidity	38%
Wind Speed	W 10 G 23 mph
Barometer	29.77 in (1006.6 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	17 Jun 1:51 pm CDT

More Information:

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

Extended Forecast for

McHenry IL

This Afternoon
High: 91 °F
Slight Chance
T-storms
Tonight
Low: 68 °F
Chance
T-storms
Wednesday
High: 75 °F
T-storms
Wednesday Night
Low: 62 °F
Chance
T-storms then
Chance
Showers
Juneteenth
High: 81 °F
Mostly Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 71 °F
Partly Cloudy
Saturday
High: 94 °F
Sunny

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 91. Heat index values as high as 96. West southwest wind 10 to 15 mph.

Tonight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southwest wind 5 to 10 mph.

Wednesday

Showers and thunderstorms, mainly before 4pm. High near 75. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Wednesday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62. Northwest wind around 10 mph.

Juneteenth

Mostly sunny, with a high near 81. West wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 64.

Friday

Mostly sunny, with a high near 87.

Friday Night

Partly cloudy, with a low around 71.

Saturday

Sunny, with a high near 94.