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

Two Storms Tracking through the Southwest and Southcentral U.S.

A storm over the southwest U.S. will shift east through Thursday while another Pacific storm pivots over the region Friday through the weekend. Widespread low elevation rain and high elevation snow showers are expected with each storm. Both storms will shift over the central U.S. with the first occurring tonight through Thursday and the second Saturday night into Monday. Flood Watches issued. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

43°F

6°C

Humidity 80%
Wind Speed Calm
Barometer 30.18 in (1022.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 19 Nov 4:51 pm CST
Extended Forecast for

McHenry IL

  • Tonight

    Tonight: Patchy drizzle between 8pm and 11pm. Cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy
    Drizzle then
    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 51. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 51 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. North wind around 5 mph, with gusts as high as 10 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. North wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy drizzle between 8pm and 11pm. Cloudy, with a low around 40. Calm wind.
Thursday
Cloudy, with a high near 51. Light south wind becoming south southwest 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 51. North wind around 5 mph, with gusts as high as 10 mph.
Friday Night
Mostly cloudy, with a low around 30. North wind around 5 mph.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 54.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
Last Update:
3:11 pm CST Nov 19, 2025
Forecast Valid:
4pm CST Nov 19, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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