National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Storms in the East; Fire Weather Threats in the West

A slow moving frontal system will bring strong to severe storms and locally heavy rain from the Northeast to the southern Plains. Meanwhile, Fire Weather threats remain elevated over the northern Inter-Mountain West, as Red Flag Warnings and Fire weather watches are in effect. Also, the potential for isolated dry thunderstorms remains possible across this portion of the West. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

A Few Clouds

75°F

24°C

Humidity 82%
Wind Speed N 5 mph
Barometer 29.96 in (1013.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Aug 11:55 am CDT
Extended Forecast for

Mc Henry IL

  • This
    Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Chance
    T-storms

    High: 80 °F

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. North northeast wind 5 to 10 mph becoming light in the evening.

    Slight Chance
    T-storms then
    Patchy Fog

    Low: 63 °F

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. North wind around 5 mph.

    Patchy Fog
    then Mostly
    Sunny

    High: 83 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm after midnight.

    Mostly Clear

    Low: 61 °F

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.

    Sunny

    High: 83 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 66.

    Partly Cloudy

    Low: 66 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 78.

    Chance
    T-storms

    High: 78 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely, mainly between 8pm and 2am. Cloudy, with a low around 63.

    T-storms
    Likely

    Low: 63 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75.

    Chance
    T-storms

    High: 75 °F

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 63. North northeast wind 5 to 10 mph becoming light in the evening.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 66.
Monday
A 50 percent chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 78.
Monday Night
Showers and thunderstorms likely, mainly between 8pm and 2am. Cloudy, with a low around 63.
Tuesday
A chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 75.
Tuesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 78.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Mc Henry IL
 42.34°N 88.29°W
Last Update:
11:17 am CDT Aug 17, 2018
Forecast Valid:
12pm CDT Aug 17, 2018-6pm CDT Aug 23, 2018
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation