Live Weather & Forecast
Weather in MacHenry
Illinois, United States · Real-time conditions & 3-day outlook
23°C
Feels like 25°C
73°F / Feels 77°F
Partly cloudy
MacHenry, Illinois
🌞 Daytime
Updated: 2026-04-12 15:45
Humidity
65%
Wind
34.9 km/h SW
Wind Gust
53.8 km/h
Pressure
1009 mb
Visibility
16 km
UV Index
1
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
18.1°C
Wind Degree
221°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
152.9 μg/m³
NO₂
4.6 μg/m³
O₃
82 μg/m³
SO₂
1.4 μg/m³
PM 2.5
3.6 μg/m³
PM 10
3.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for MacHenry, Illinois
12 AM
8°
Patchy rain nearby
1 AM
8°
Patchy rain nearby
2 AM
8°
Patchy rain nearby
3 AM
8°
Clear
4 AM
9°
Clear
5 AM
9°
Clear
6 AM
10°
Clear
7 AM
12°
Patchy rain nearby
8 AM
13°
Patchy rain nearby
9 AM
15°
Sunny
10 AM
18°
Patchy rain nearby
11 AM
20°
Moderate rain at times
12 PM
21°
Patchy rain nearby
1 PM
22°
Sunny
2 PM
23°
Sunny
3 PM
23°
Partly cloudy
4 PM
22°
Sunny
5 PM
20°
Overcast
6 PM
19°
Overcast
7 PM
18°
Overcast
8 PM
18°
Overcast
9 PM
17°
Overcast
10 PM
17°
Moderate rain
11 PM
17°
Overcast
3-Day Forecast
Daily overview for MacHenry, Illinois
Today
Moderate rain
24°
/
8°
🌧️ 80% chance of rain
💧 Avg. humidity: 84%
💨 Max wind: 37.8 km/h
🌧️ Total precip: 7.12 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
25°
/
16°
🌧️ 79% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 2.41 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Heavy rain
25°
/
18°
🌧️ 87% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 34.2 km/h
🌧️ Total precip: 28.87 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit MacHenry
Plan your trip to MacHenry, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in MacHenry?
Current conditions in MacHenry: Partly cloudy, temperature 23°C, humidity 65%.
What is the best time to visit MacHenry?
The best time to visit MacHenry is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in MacHenry?
MacHenry is located at approximately 43° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in MacHenry?
The wettest period in MacHenry is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to MacHenry?
For visits to MacHenry during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is MacHenry in?
MacHenry is located in United States, in the state of Illinois.
What are the public holidays in MacHenry in 2026?
View the 2026 public holidays for MacHenry on our Holidays page.
What are the GPS coordinates used for the weather forecast in MacHenry?
The weather forecast for MacHenry uses coordinates 43.0249, -88.148.