Weather forecast for tomorrowMarkham, IL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSSW 202°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:05 pm CDT
  • ▼
Tomorrow, in Markham, the weather remains calm, bright, and sunny.
The highest temperature will be a breezy 64.4°F, while the lowest temperature will be a cold 39.2°F.
Tomorrow's temperature is anticipated to match October's standard 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 41°C.

Chance of precipitation

Highest chance: 6 am 2%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 73%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 196°
  • Humidity: 74%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 197°
  • Humidity: 74%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 198°
  • Humidity: 73%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:06 am
  • 8 am
  • 43°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphSSW 199°
  • Humidity: 68%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 205°
  • 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 207°
  • Humidity: 40%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSSW 206°
  • Humidity: 36%
  • 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 202°
  • 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: 9mphS 187°
  • Humidity: 43%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:05 pm
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 182°
  • Humidity: 54%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 187°
  • Humidity: 61%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 62.6°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, expect conditions in line with October's usual high temperature. The minimum temperature tomorrow will be more alike with November's average low of 34.9°F than October's average of 46.9°F.
Updated: Oct 18, 2026 @ 01:11:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunshine and minimal clouds are in the outlook.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be slightly cooler than the average low temperature.

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

In Markham, the length of the day tomorrow will be 10h and 59min.