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May 14th, 2026 :: 10:17 am CDT   

Local Weather Report for
Mchenry
Illinois, United States

 Mchenry Weather Forecast Summary  
 
Today
May 14th
Friday
May 15th
Saturday
May 16th
Sunday
May 17th
Monday
May 18th
Mostly Sunny Mix of Cloud and Sun Mix of Cloud and Sun Mix of Cloud and Sun Thundershowers
63°F
68°F
48°F
80°F
61°F
80°F
64°F
75°F
68°F
 
 Mchenry Detailed Weather Forecast  
 
Thursday, May 14th, 2026
Afternoon Temperature: 63°F
Mostly sunny.
Evening Temperature: 50°F
Clear with cloudy periods. Windy at times.
Friday, May 15th, 2026
Overnight Temperature: 50°F
Cloudy.
Morning Temperature: 54°F
A mix of cloud and sun with a chance of showers. Windy at times.
Afternoon Temperature: 65°F
Sunny with cloudy periods with a slight chance of showers. Windy.
Evening Temperature: 65°F
A mix of cloudy and clear skies.
Saturday, May 16th, 2026
Overnight Temperature: 62°F
Mostly cloudy with a chance of showers.
Morning Temperature: 66°F
A mix of sun and cloud with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 79°F
A mix of sun and cloud with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 68°F
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Sunday, May 17th, 2026
Overnight Temperature: 65°F
A mix of clear and cloudy skies with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 66°F
Mostly cloudy with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 77°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 74°F
Clear with cloudy periods. Chance of a thunderstorm. Windy.
Monday, May 18th, 2026
Overnight Temperature: 70°F
Mostly clear. Slight chance of a thunderstorm. Windy.
Morning Temperature: 72°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy.
Afternoon Temperature: 72°F
A mix of sun and cloud with a slight chance of showers or thundershowers. Windy.
Evening Temperature: 72°F
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm. Windy.
Tuesday, May 19th, 2026
Overnight Temperature: 61°F
Cloudy with a few showers. Wind 20 to 30 mph.
Morning Temperature: 56°F
Mostly sunny. Windy at times.
Afternoon Temperature: 63°F
Mostly sunny. Windy at times.
Evening Temperature: 56°F
Clear.
Wednesday, May 20th, 2026
Overnight Temperature: 47°F
Clear.
Morning Temperature: 55°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 61°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 53°F
Cloudy. Windy at times.
Thursday, May 21st, 2026
Overnight Temperature: 53°F
Mostly cloudy with a chance of showers. Windy at times.
Morning Temperature: 48°F
A mix of cloud and sun with showers likely. Windy.
Afternoon Temperature: 48°F
A mix of cloud and sun with a chance of showers. Windy at times.
Evening Temperature: 47°F
Mostly cloudy. Windy at times.
Friday, May 22nd, 2026
Overnight Temperature: 45°F
Mostly cloudy.
Morning Temperature: 49°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 60°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 56°F
Clear with cloudy periods.





 

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This WeatherCity Weather Forecast for Mchenry, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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