Weather forecast for 10 daysChicago Heights, IL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 63°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 15mphSSW 201°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
On Sunday, October 18, sunny and dry conditions are anticipated.
Temperatures will oscillate between an enjoyable 62.6°F at their highest and a cold 37.4°F at their lowest.
The maximum temperature will align with October's usual high of 61.2°F.
Sunrise was at 7:06 am and sunset will be at 6:05 pm; the daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 73°C.
Coldest day: today 63°C.

Chance of precipitation

Highest chance: Monday 26.10. 17%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 63°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 15mphSSW 201°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 185°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphE 94°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:08 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphS 178°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:09 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNE 46°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 5:59 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphESE 122°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 5:57 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphSSE 153°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:13 am CDT
  • Sunset: 5:56 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 5:54 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 7mphNE 35°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:15 am CDT
  • Sunset: 5:53 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 66°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphE 99°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:16 am CDT
  • Sunset: 5:52 pm CDT
  • ▼
It is expected that a combination of mostly clear and cloudy weather is anticipated.
Rain is not predicted in Chicago Heights in the upcoming period.
In the upcoming days, the maximum temperature will range between 62.6°F and 73.4°F, while the nightly low temperatures will show a considerable swing, as temperatures overnight will fluctuate from 37.4°F up to 50°F.
Next Sunday is expected to be the warmest, reaching up to 73.4°F; today is the coldest day, with a maximum temperature of 62.6°F.
Updated: Oct 18, 2026 @ 17:02:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunny skies are in store, with excellent visibility.

Today, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
The highest temperature today will be in line with the average maximum temperature in October. Today, the lowest temperature will be notably lower than the average low of 46.9°F.

On Sunday, in Chicago Heights, sunrise was at 7:06 am and sunset will be at 6:05 pm (CDT).

In Chicago Heights, today, there will be 10h and 59min of daylight.