Weather forecast for tomorrowChicago Heights, IL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSSW 200°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
Tomorrow, in Chicago Heights, sunny skies are in store, with excellent visibility.
Temperature values will vary noticeably, extending from an enjoyable 64.4°F to a wintry 37.4°F.
The highest temperature tomorrow will align with the usual October peak of 61.2°F.
Sunrise will be at 7:06 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 39°C.

Chance of precipitation

Highest chance: 6 am 2%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSW 198°
  • Humidity: 73%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 191°
  • Humidity: 75%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 194°
  • Humidity: 75%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 195°
  • Humidity: 75%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:06 am
  • 8 am
  • 41°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 196°
  • Humidity: 70%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 203°
  • Humidity: 52%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 206°
  • Humidity: 39%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSSW 205°
  • Humidity: 35%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 200°
  • Humidity: 34%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphS 185°
  • Humidity: 43%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:05 pm
  • 8 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 182°
  • Humidity: 55%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphS 185°
  • Humidity: 64%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, sunny conditions are likely to prevail.
The temperature will vary between a minimum of 39.2°F and a maximum of 62.6°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the high temperature will be resembling October's average. The minimum temperature will be more in line with November's average low of 34.9°F than October's typical 46.9°F.
Updated: Oct 18, 2026 @ 01:50:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Chicago Heights, skies will stay clear and sunny.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 37.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be noticeably lower than the average low of 46.9°F.

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

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