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

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
Extended Forecast for

Grayslake IL

  • Overnight

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

    Mostly Clear

    Low: 54 °F

  • Thursday

    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.

    Mostly Sunny

    High: 90 °F

  • Thursday
    Night

    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.

    Chance
    T-storms then
    T-storms

    Low: 68 °F

  • Friday

    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%.

    T-storms
    Likely then
    Slight Chance
    T-storms

    High: 91 °F

  • Friday
    Night

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

    Slight Chance
    T-storms

    Low: 65 °F

  • Saturday

    Saturday: Sunny, with a high near 87.

    Sunny

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 62.

    Partly Cloudy

    Low: 62 °F

  • Sunday

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

    Chance
    T-storms then
    Showers
    Likely

    High: 88 °F

  • Sunday
    Night

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

    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.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
Grayslake IL
 42.35°N 88.02°W
3:15 am CDT Jun 17, 2021
3am CDT Jun 17, 2021-6pm CDT Jun 23, 2021
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database