Western Heat Wave Continues; Severe Weather in the Midwest; Tropical Disturbance in the Gulf of Mexico

The persistent and extreme heat wave being felt across the western U.S. is set to continue and even expand into the Central U.S. Severe weather and flash flooding are possible over the Midwest. A tropical depression will likely form over the western Gulf of Mexico in the next two days. Heavy rain could begin to impact portions of the northern Gulf Coast Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

52°F

11°C

Humidity	89%
Wind Speed	Calm
Barometer	30.02 in (1016.2 mb)
Dewpoint	49°F (9°C)
Visibility	10.00 mi
Last update	17 Jun 2:55 am CDT

More Information:

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

Extended Forecast for

Grayslake IL

Overnight

Mostly Clear
Low: 54 °F
Thursday

Mostly Sunny
High: 90 °F
Thursday
Night

Chance
T-storms then
T-storms
Low: 68 °F
Friday

T-storms
Likely then
Slight Chance
T-storms
High: 91 °F
Friday
Night

Slight Chance
T-storms
Low: 65 °F
Saturday

Sunny
High: 87 °F
Saturday
Night

Partly Cloudy
Low: 62 °F
Sunday

Chance
T-storms then
Showers
Likely
High: 88 °F
Sunday
Night

Showers
Low: 65 °F

Detailed Forecast

Overnight

Mostly clear, with a low around 54. Calm wind.

Thursday

Mostly sunny, with a high near 90. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Thursday Night

Showers and thunderstorms, mainly after 1am. Low around 68. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Friday

Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 91. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Friday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. West wind 5 to 10 mph.

Saturday

Sunny, with a high near 87.

Saturday Night

Partly cloudy, with a low around 62.

Sunday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88.

Sunday Night

Showers and possibly a thunderstorm. Mostly cloudy, with a low around 65.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 77.