Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

66°F

19°C

Humidity	63%
Wind Speed	SW 8 mph
Barometer	29.93 in (1012.7 mb)
Dewpoint	53°F (12°C)
Visibility	10.00 mi
Last update	19 Jun 10:51 pm CDT

More Information:

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

Extended Forecast for

McHenry IL

Tonight
Low: 57 °F
Chance
Showers
Saturday
High: 77 °F
Sunny
Saturday Night
Low: 56 °F
Partly Cloudy
Sunday
High: 71 °F
Showers
Likely
Sunday Night
Low: 55 °F
Showers
Likely
Monday
High: 70 °F
Partly Sunny
Monday Night
Low: 51 °F
Partly Cloudy
Tuesday
High: 73 °F
Mostly Sunny
Tuesday Night
Low: 55 °F
Mostly Cloudy
then Chance
Showers

Detailed Forecast

Tonight

A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 4am. Mostly clear, with a low around 57. West southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

Saturday

Sunny, with a high near 77. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

Sunday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny through mid morning, then becoming cloudy, with a high near 71. Light and variable wind becoming east 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. North northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

Monday

Partly sunny, with a high near 70.

Monday Night

Partly cloudy, with a low around 51.

Tuesday

Mostly sunny, with a high near 73.

Tuesday Night

A chance of showers after 1am. Mostly cloudy, with a low around 55.

Wednesday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 73.

Wednesday Night

Partly cloudy, with a low around 54.