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McHenry, United States Snapshot 2026
Where is McHenry?
McHenry, United States
- Continent
- Americas
- Country
- United States
- City
- McHenry
- Population
- 26.7K
- Elevation
- 243 m
- Coordinates
- 42.33°, -88.27°
McHenry is a city in United States with a population of approximately 26.7K. Average temperatures range from -7°C (19°F) in January to 28°C (82°F) in July. The best time to visit is June, July, August, September, October. The city sits at an elevation of 243 m above sea level.
Time in McHenry right now
Open full time & time zone page 12:45 45
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in McHenry
Daylight in McHenry today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 16m
Climate normals for McHenry
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 0°C / -7°C | -5°C / -13°C | 8days (59 mm) Wet | 5h Fair | 74% Muggy | 2.1 Moderate | Poor | View Details |
| February | 2°C / -6°C | -2°C / -11°C | 7days (47 mm) Good | 6.9h Fair | 70% Muggy | 3.4 Moderate | Poor | View Details |
| March | 9°C / 0°C | 5°C / -5°C | 10days (85 mm) Wet | 7.6h Good | 68% Muggy | 4.5 Moderate | Poor | View Details |
| April | 14°C / 4°C | 12°C / 0°C | 13days (111 mm) Wet | 8.7h Good | 68% Muggy | 5.3 High | Fair | View Details |
| May | 20°C / 11°C | 20°C / 8°C | 13days (122 mm) Wet | 10.1h Excellent | 70% Muggy | 6.5 High | Good | View Details |
| June best | 26°C / 17°C | 28°C / 17°C | 12days (94 mm) Wet | 11.8h Excellent | 69% Muggy | 7 High | Excellent | View Details |
| July best | 28°C / 20°C | 30°C / 21°C | 11days (98 mm) Wet | 11.9h Excellent | 72% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 29°C / 20°C | 10days (85 mm) Wet | 11.1h Excellent | 73% Muggy | 6.4 High | Excellent | View Details |
| September best | 24°C / 16°C | 25°C / 16°C | 9days (79 mm) Wet | 9.5h Good | 72% Muggy | 5.3 High | Excellent | View Details |
| October best | 17°C / 9°C | 15°C / 7°C | 9days (92 mm) Wet | 7.2h Good | 70% Muggy | 3.7 Moderate | Good | View Details |
| November | 9°C / 2°C | 5°C / -2°C | 7days (50 mm) Good | 6.1h Fair | 70% Muggy | 2.4 Moderate | Poor | View Details |
| December | 3°C / -4°C | -2°C / -9°C | 8days (52 mm) Wet | 5.1h Fair | 73% Muggy | 1.9 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 0°C / -7°C . Feb: 2°C / -6°C . Mar: 9°C / 0°C . Apr: 14°C / 4°C . May: 20°C / 11°C . Jun: 26°C / 17°C . Jul: 28°C / 20°C . Aug: 27°C / 19°C . Sep: 24°C / 16°C . Oct: 17°C / 9°C . Nov: 9°C / 2°C . Dec: 3°C / -4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 59 mm. Feb: 47 mm. Mar: 85 mm. Apr: 111 mm. May: 122 mm. Jun: 94 mm. Jul: 98 mm. Aug: 85 mm. Sep: 79 mm. Oct: 92 mm. Nov: 50 mm. Dec: 52 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 70%. Mar: 68%. Apr: 68%. May: 70%. Jun: 69%. Jul: 72%. Aug: 73%. Sep: 72%. Oct: 70%. Nov: 70%. Dec: 73%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 20 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 18 km/h . Jun: 17 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 16 km/h . Oct: 19 km/h . Nov: 20 km/h . Dec: 20 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 2.
Frequently Asked Questions
McHenry has a population of approximately 26.7K.
The best months to visit McHenry are June, July, August, September, October, when temperatures are pleasant and rainfall is lower.
McHenry receives approximately 974mm of rainfall annually across 117 rainy days.
McHenry is located in United States, in the Americas region.
McHenry sits at an elevation of 243 m (797 ft) above sea level.