Weather forecast for 10 daysLemont, IL

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphSW 224°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
Today, in Lemont, clear skies and sunshine are anticipated.
Temperature fluctuations between a moderate 57.2°F and a wintry 39.2°F are forecasted.
The temperature for today is anticipated to correspond with the average October peak of 60.6°F.
Sunrise was at 7:06 am and sunset will be at 6:07 pm; the daylight will last for 11h and 1min.

Sunday Oct 18, 2026

  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 202°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
Tomorrow, in Lemont, sunny and dry conditions are also anticipated.
The temperature is predicted to oscillate between a maximum of a comfortable 64.4°F and a minimum of an icy 39.2°F.
The day’s highest temperature is predicted to be a couple of degrees higher than the standard October average of 60.6°F.
Sunrise will be at 7:07 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest period: Thursday - Sunday 73°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: Monday 26.10. 15%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphSW 224°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphSSW 202°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 189°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphESE 111°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphS 182°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 132°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphESE 115°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:13 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSE 142°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 5:57 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphS 183°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:15 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 70°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphNNE 28°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:17 am CDT
  • Sunset: 5:54 pm CDT
  • ▼
A combination of sun-filled and dull weather is forecasted.
Rainfall is not predicted in Lemont in the upcoming days.
Expect a substantial fluctuation in daytime highs in the next ten days. Forecast highs will fluctuate between 57.2°F and 73.4°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 39.2°F up to 53.6°F.
The warmest days will be Thursday through next Sunday, with a maximum of 73.4°F; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 19:00:34 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 39.2°F.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be a few degrees lower than the average low of 45.5°F.

On Saturday, in Lemont, sunrise was at 7:06 am and sunset will be at 6:07 pm (CDT).

Today, the daylight will last for 11h and 1min.

Tomorrow, sun-filled conditions are expected to persist.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be moderately higher than the average highest temperature of 60.6°F in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.

On Sunday, in Lemont, sunrise will be at 7:07 am and sunset at 6:06 pm (CDT).

In Lemont, tomorrow, there will be 10h and 59min of daylight.