Weather forecast for tomorrowGrayslake, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 63°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 15mphSSW 209°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:08 am CDT
- Sunset: 6:05 pm CDT
- details ▼
Tomorrow, sunshine will likely continue with scattered clouds at most.
The temperature variation is anticipated to range from a maximum of an enjoyable 62.6°F to a minimum of an icy 39.2°F.
The predicted high temperature will align with October's average of 59°F.
Sunrise will be at 7:08 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 57min.
The temperature variation is anticipated to range from a maximum of an enjoyable 62.6°F to a minimum of an icy 39.2°F.
The predicted high temperature will align with October's average of 59°F.
Sunrise will be at 7:08 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 57min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 61°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 4%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphSSW 211°
- Humidity: 72%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 210°
- Humidity: 73%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphSSW 209°
- Humidity: 76%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 208°
- Humidity: 76%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:08 am
- 8 am
- 43°F
- Feels like:37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphSSW 207°
- Humidity: 74%
- Pressure: 30.45"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSW 211°
- Humidity: 56%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 57°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 213°
- Humidity: 46%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 211°
- Humidity: 41%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 206°
- Humidity: 40%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphSSW 199°
- Humidity: 49%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:05 pm
- 8 pm
- 52°F
- Feels like:48°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 197°
- Humidity: 59%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:46°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 204°
- Humidity: 66%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, mostly cloudless and sunny weather is anticipated.
The temperature will be between a minimum of 41°F and a maximum of 60.8°F. The warmest part of the day will be from 1 pm to 5 pm.
Tomorrow, expect conditions comparable to October's usual high temperature. The nighttime low will be also relatively lower than the typical October minimum temperature of 45.1°F.
The temperature will be between a minimum of 41°F and a maximum of 60.8°F. The warmest part of the day will be from 1 pm to 5 pm.
Tomorrow, expect conditions comparable to October's usual high temperature. The nighttime low will be also relatively lower than the typical October minimum temperature of 45.1°F.
Updated: Oct 18, 2026 @ 01:54:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, in Grayslake, skies will stay clear and sunny.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 39.2°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be relatively lower than the average low of 45.1°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be relatively lower than the average low of 45.1°F.
On Sunday, in Grayslake, sunrise will be at 7:08 am and sunset at 6:05 pm (CDT).
In Grayslake, Illinois, tomorrow, there will be 10h and 57min of daylight.
