Weather forecast for todayGrayslake, IL

Weather forecast for today

Current condition 8:43 am CDT

  • 41°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 3mphNW 310°
  • Humidity: 70%
  • Dewpoint: 32°F
  • Pressure: 30.54"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
In Grayslake, at the moment, no clouds in the sky, just uninterrupted sunshine.
The temperature is a wintry 41°F. The current temperature is almost at the minimum-anticipated 39.2°F for today.

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphWSW 242°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
On Saturday, in Grayslake, sunshine is expected with little to no cloud cover.
The highest temperature will be a refreshing 57.2°F, while the lowest forecasted temperature is a cold 39.2°F.
The high is expected to coincide with October's normal of 59°F.
Sunrise was at 7:07 am and sunset will be at 6:07 pm; the daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 55°C.
Minimum temperature: 43°C.

Chance of precipitation

Highest chance: 1%.

Hourly weather forecast

  • 9 am
  • 43°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphWNW 299°
  • Humidity: 67%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 46°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphW 277°
  • Humidity: 57%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 50°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphWSW 248°
  • Humidity: 52%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 52°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 235°
  • Humidity: 45%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 54°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSW 230°
  • Humidity: 41%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSW 230°
  • Humidity: 37%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 3 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSW 230°
  • Humidity: 36%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSW 228°
  • Humidity: 37%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 54°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSW 225°
  • Humidity: 41%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 50°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSW 220°
  • Humidity: 48%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:07 pm
  • 7 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 217°
  • Humidity: 53%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 215°
  • Humidity: 59%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 45°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 218°
  • Humidity: 64%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 216°
  • Humidity: 65%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 213°
  • Humidity: 67%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, clear skies and sunny weather are expected.
The temperature will be between a minimum of 42.8°F and a maximum of 55.4°F. The warmest part of the day will be from 2 pm to 4 pm.
Today, the maximum will be similar to October's typical high. Today, the nighttime low will be also relatively lower than October's typical minimum of 45.1°F.
Updated: Oct 17, 2026 @ 13:43:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 8:43 am CDT is 41°F.

On Saturday, expect sunny weather with a crisp, clear sky.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 39.2°F.
The maximum temperature will be in line with the average highest temperature of 59°F in October. The lowest temperature today will be moderately lower than the average low temperature.

On Saturday, in Grayslake, sunrise was at 7:07 am and sunset will be at 6:07 pm (CDT).

Today, the daylight will last for 10h and 59min.