Weather forecast for tomorrowGrayslake, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 63°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 210°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:08 am CDT
- Sunset: 6:05 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, sun-filled conditions are also expected to persist.
The highest predicted temperature is an enjoyable 62.6°F, while the lowest temperature will be a cold 39.2°F.
Tomorrow, the expected high will correspond with the regular October temperature 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 highest predicted temperature is an enjoyable 62.6°F, while the lowest temperature will be a cold 39.2°F.
Tomorrow, the expected high will correspond with the regular October temperature 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 63°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSW 212°
- Humidity: 67%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSW 211°
- Humidity: 71%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSSW 212°
- Humidity: 73%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphSSW 208°
- Humidity: 75%
- 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: 2%
- Precipitation: 0"
- Wind: 9mphSSW 209°
- Humidity: 74%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:46°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSSW 211°
- Humidity: 57%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°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 212°
- Humidity: 42%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 63°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 207°
- Humidity: 41%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 200°
- Humidity: 49%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:05 pm
- 8 pm
- 52°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 200°
- Humidity: 57%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:46°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphSSW 208°
- Humidity: 62%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, sunny conditions are likely to prevail.
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 at 3 pm and 4 pm.
The highest temperature tomorrow will be close to October's typical maximum. The lowest temperature tomorrow will be also slightly cooler than the standard minimum for October.
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 at 3 pm and 4 pm.
The highest temperature tomorrow will be close to October's typical maximum. The lowest temperature tomorrow will be also slightly cooler than the standard minimum for October.
Updated: Oct 17, 2026 @ 15:23:42 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
On Sunday, expect bright skies and plenty of sunshine.
Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 39.2°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be a few degrees lower than the average low temperature.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be a few degrees lower than the average low temperature.
On Sunday, in Grayslake, sunrise will be at 7:08 am and sunset at 6:05 pm (CDT).
Tomorrow, the daylight will last for 10h and 57min.
