Weather forecast for tomorrowMendon, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 11mphS 183°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:19 am CDT
- Sunset: 6:21 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, sunny skies and pleasant visibility are also expected.
Temperatures are forecasted to peak at a breezy 66.2°F and drop to a minimum of a cold 41°F.
Tomorrow's maximum temperature is expected to reflect the standard October high of 63.5°F.
Sunrise will be at 7:19 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 2min.
Temperatures are forecasted to peak at a breezy 66.2°F and drop to a minimum of a cold 41°F.
Tomorrow's maximum temperature is expected to reflect the standard October high of 63.5°F.
Sunrise will be at 7:19 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 2min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphS 170°
- Humidity: 69%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphS 177°
- Humidity: 73%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphS 176°
- Humidity: 75%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 176°
- Humidity: 79%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:19 am
- 8 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphS 176°
- Humidity: 78%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphS 185°
- Humidity: 58%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphS 190°
- Humidity: 47%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphS 189°
- Humidity: 42%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphS 183°
- Humidity: 39%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 164°
- Humidity: 47%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:21 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSE 158°
- Humidity: 58%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSE 162°
- Humidity: 63%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, sunny conditions are likely to prevail.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The high temperature is expected to be alike with October's usual value of 63.5°F. Tomorrow, expect the temperature to be more resembling the typical minimum for November than for October.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The high temperature is expected to be alike with October's usual value of 63.5°F. Tomorrow, expect the temperature to be more resembling the typical minimum for November than for October.
Updated: Oct 17, 2026 @ 17:08:53 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
On Sunday, in Mendon, the forecast calls for abundant sunshine.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 41°F.
The highest temperature will be in line with the average maximum of 63.5°F in October. The lowest temperature will be slightly cooler than the average low of 46.8°F.
The highest temperature will be in line with the average maximum of 63.5°F in October. The lowest temperature will be slightly cooler than the average low of 46.8°F.
On Sunday, in Mendon, sunrise will be at 7:19 am and sunset at 6:21 pm (CDT).
Tomorrow, the daylight will last for 11h and 2min.
