Weather forecast for tomorrowMcHenry, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 209°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:06 pm CDT
- details ▼
Tomorrow, on Sunday, sunny skies are also in store, with excellent visibility.
Temperatures are anticipated to peak at an enjoyable 64.4°F and drop to a minimum of a cold 39.2°F.
Tomorrow's peak temperature is expected to be relatively higher than October's average high of 58.6°F.
Sunrise will be at 7:09 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 57min.
Temperatures are anticipated to peak at an enjoyable 64.4°F and drop to a minimum of a cold 39.2°F.
Tomorrow's peak temperature is expected to be relatively higher than October's average high of 58.6°F.
Sunrise will be at 7:09 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 57min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 12 am - 6 am 2%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 210°
- Humidity: 67%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 211°
- Humidity: 70%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSW 212°
- Humidity: 74%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 8mphSSW 208°
- Humidity: 75%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:09 am
- 8 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphSSW 207°
- Humidity: 74%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSW 210°
- Humidity: 57%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphSSW 212°
- Humidity: 46%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 212°
- Humidity: 40%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 207°
- Humidity: 39%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:55°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphSSW 197°
- Humidity: 47%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:06 pm
- 8 pm
- 52°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 197°
- Humidity: 57%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:46°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 205°
- Humidity: 60%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, bright and mostly sunny weather is expected.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature tomorrow will be moderately higher than October's typical maximum temperature. Tomorrow, the nighttime low will be also moderately lower than October's typical minimum of 43.9°F.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature tomorrow will be moderately higher than October's typical maximum temperature. Tomorrow, the nighttime low will be also moderately lower than October's typical minimum of 43.9°F.
Updated: Oct 17, 2026 @ 16:59:07 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, clear and sunny conditions are expected.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be also slightly cooler than the average low temperature.
On Sunday, in McHenry, sunrise will be at 7:09 am and sunset at 6:06 pm (CDT).
In McHenry, tomorrow, there will be 10h and 57min of daylight.
