



Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend
Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >
Hazardous Weather Conditions

Current conditions at
De Kalb Taylor Municipal Airport (KDKB)
Lat: 41.93° N Lon: 88.71° W Elev: 909 ft.
Overcast
69°F
21°C
Humidity | 92% |
Wind Speed | Calm |
Barometer | 30.08 in |
Dewpoint | 66°F (19°C) |
Visibility | 10.00 mi |
Last update | 18 Jul 11:15 pm CDT |
Detailed forecast for
McHenry County
Rest Of Tonight
Increasing clouds. A slight chance of showers and thunderstorms late. Lows in the mid 60s. Southeast winds around 5 mph. Chance of precipitation 20 percent.
Saturday
Mostly cloudy. Showers likely with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph, becoming west in the afternoon. Chance of precipitation 70 percent.
Saturday Night
Mostly cloudy. A chance of showers in the evening. A slight chance of thunderstorms. A slight chance of showers after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 30 percent.
Sunday
Mostly cloudy through mid afternoon, then becoming partly cloudy. A slight chance of showers and thunderstorms in the morning. Highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of precipitation 20 percent.
Sunday Night
Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows around 60. East winds 5 to 10 mph. Chance of precipitation 30 percent.
Monday
Mostly cloudy. A slight chance of showers and thunderstorms in the morning. Highs around 80. Chance of precipitation 20 percent.
Monday Night
Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 20 percent.
Tuesday
Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the upper 80s. Chance of precipitation 20 percent.
Tuesday Night
Partly cloudy. Lows in the lower 70s.
Wednesday
Partly cloudy. Highs in the lower 90s. Heat index values up to 105.
Wednesday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of precipitation 30 percent. Heat index values up to 100 early in the evening.
Thursday
Partly cloudy. Highs in the upper 80s. Heat index values up to 100.
Thursday Night
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of precipitation 30 percent.
Friday
Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
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