Weather forecast for tomorrowBlue Island, IL

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 191°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:03 pm CDT
  • ▼
Tomorrow, in Blue Island, sunshine will likely continue with scattered clouds at most.
The highest forecasted temperature is a delightful 68°F, while the lowest temperature will be a chilly 42.8°F.
Expect a warmer feel as the forecasted high matches September's 73.6°F, rather than October's average of 60.6°F.
Sunrise will be at 7:07 am and sunset at 6:03 pm; tomorrow's daylight will last for 10h and 56min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 5%.

Hourly weather forecast

  • 12 am
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 199°
  • Humidity: 65%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphSSW 204°
  • Humidity: 70%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 77%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSSW 203°
  • Humidity: 83%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:07 am
  • 8 am
  • 45°F
  • Feels like:
    43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphSSW 193°
  • Humidity: 79%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 55%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 204°
  • Humidity: 42%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 197°
  • Humidity: 38%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphS 184°
  • Humidity: 36%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 99°
  • Humidity: 49%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:03 pm
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphE 99°
  • Humidity: 64%
  • Pressure: 30.33"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphESE 103°
  • Humidity: 73%
  • Pressure: 30.36"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, primarily sunny and occasionally overcast weather is anticipated.
The temperature will be between a minimum of 41°F and a maximum of 68°F. The warmest part of the day is anticipated around 3 pm.
The highest temperature is more similar to September's average maximum of 73.6°F than October's usual of 60.6°F. The minimum temperature will be a couple of degrees lower than October's average low of 47.1°F.
Updated: Oct 18, 2026 @ 06:39:53 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, a sun-drenched sky is anticipated.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 42.8°F.
The highest temperature will be slightly warmer than the average maximum of 60.6°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 47.1°F.

On Monday, in Blue Island, sunrise will be at 7:07 am and sunset at 6:03 pm (CDT).

In Blue Island, tomorrow, there will be 10h and 56min of daylight.