Weather forecast for tomorrow
Markham, IL

Weather forecast for tomorrow

Tuesday, Jun 17.

Partly Cloudy
5:14 am

8:29 pm
CDT
Partly Cloudy
90°F / 68°F
  • Wind: 11mph SW
  • Humidity: 63%
  • Precip. probability: 15%
  • Precipitation: 0"
  • UV index: 9
On Tuesday, in Markham, a pleasant mix of sun and clouds will define the day.
The maximum anticipated temperature is a hot 89.6°F, while the minimum temperature will be an agreeable 68°F.
The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at a fiery hot 100.4°F. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
It will feel hotter, with a temperature more typical of July's average maximum of 81.3°F.
Sunrise will be at 5:14 am and sunset at 8:29 pm; tomorrow's daylight will last for 15h and 14min.

Frequently asked questions

What is the weather forecast for Markham for tomorrow?
Tomorrow, in Markham, mostly clear with scattered clouds is expected.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature will be 89.6°F, while the lowest temperature will be 68°F. The maximum heat index, which adjusts the air temperature based on humidity, is estimated at 100.4°F.
The maximum temperature will be significantly higher than the average highest temperature of 77.7°F in June. The lowest temperature will be a couple of degrees higher than the average low of 61.7°F.
When are sunrise and sunset tomorrow?
On Tuesday, in Markham, sunrise will be at 5:14 am and sunset at 8:29 pm (CDT).
How long will the day be tomorrow?
In Markham, the length of the day tomorrow will be 15h and 14min.

Hourly weather forecast

12 am
  • 73°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph S
  • Pressure: 29.83"Hg
  • Humidity: 78%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 72°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 5mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 85%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 70°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 5mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 91%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 8mi
Sunrise: 5:14 am
6 am
  • 70°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.8"Hg
  • Humidity: 93%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 8mi
8 am
  • 73°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SW
  • Pressure: 29.8"Hg
  • Humidity: 85%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 81°F
  • Feels like:
    84°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SW
  • Pressure: 29.77"Hg
  • Humidity: 68%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 84°F
  • Feels like:
    90°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SW
  • Pressure: 29.77"Hg
  • Humidity: 59%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 88°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SW
  • Pressure: 29.74"Hg
  • Humidity: 54%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 88°F
  • Feels like:
    93°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.71"Hg
  • Humidity: 51%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 88°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SW
  • Pressure: 29.71"Hg
  • Humidity: 51%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 81°F
  • Feels like:
    84°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 8mph WSW
  • Pressure: 29.74"Hg
  • Humidity: 63%
  • Precip. probability: 38%
  • Precipitation: 0.08"
  • Visibility: 7mi
Sunset: 8:29 pm
10 pm
  • 77°F
  • Feels like:
    81°F
Showers
Showers
  • Wind: 6mph SW
  • Pressure: 29.77"Hg
  • Humidity: 74%
  • Precip. probability: 38%
  • Precipitation: 0.04"
  • Visibility: 7mi
Tomorrow, weather will be unstable, and a combination of primarily cloud-filled and occasionally dry and sunny, turbulent and wet weather is forecasted.
Rainfall is anticipated from 7 pm to 11 pm. The most intense rain will be falling at 8 pm and 9 pm.
The temperature will be between a minimum of 69.8°F and a maximum of 87.8°F. The hottest part of the day will be from 2 pm to 6 pm.
The maximum temperature will be more consistent with July's average high of 81.3°F than June's 77.7°F. The minimum temperature will be also more similar to July's average low of 65.8°F than June's typical 61.7°F.
Updated: Jun 16, 2025 @ 06:56:30 UTC
Published by: Weather U.S. | About Us
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