Weather forecast for 10 daysMendon, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 37%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
On Saturday, October 17, expect sunny weather with a crisp, clear sky.
Forecasted temperature values will span from a mild 57.2°F down to an icy 39.2°F.
Today, the peak temperature is predicted to be a few degrees lower than the usual high for October at 63.5°F.
Sunrise was at 7:18 am and sunset will be at 6:22 pm; the daylight will last for 11h and 5min.

Sunday Oct 18, 2026

  • 66°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphS 184°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
Tomorrow, on Sunday, October 18, sunshine is also expected with little to no cloud cover.
Forecasted temperature values will span from a comfortable 66.2°F down to an icy 41°F.
Tomorrow's peak temperature is forecasted to align with October's common 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.

10-day overview

Daily temperatures

Warmest period: Thursday - Sunday 77°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: Sunday 25.10. 16%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 37%
  • UV index: 4
  • Sunrise: 7:18 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphS 184°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:19 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphS 169°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphSSE 150°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 5mphS 184°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:17 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSSE 165°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:23 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphSE 142°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:14 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphSSE 156°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphSSW 212°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:26 am CDT
  • Sunset: 6:11 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 6mphSSE 147°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:27 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
It is expected that a combination of cloud-filled and sun-filled weather is expected.
Rainfall is not anticipated in Mendon in the upcoming period.
Temperature differences will be noticeable over the next several days. The maximum temperature will vary between 57.2°F and 77°F, while the variation in nighttime lows will be also notably wide, as the minimum temperature is expected to range between 39.2°F and 53.6°F.
The warmest days in Mendon will be Thursday through next Sunday, with a maximum of 77°F; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 18:31:03 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, expect sunny weather with a crisp, clear sky.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 39.2°F.
The highest temperature today will be slightly cooler than the average maximum temperature in October. Today, the lowest temperature will be also a couple of degrees lower than the average low temperature.

On Saturday, in Mendon, sunrise was at 7:18 am and sunset will be at 6:22 pm (CDT).

Today, the daylight will last for 11h and 5min.

Tomorrow, in Mendon, sunshine and minimal clouds are in the outlook.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be a couple of degrees lower than the average low temperature.

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.