Weather forecast for tomorrowIsland Lake, IL
Weather forecast for tomorrow
Monday Oct 19, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphSSW 200°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:10 am CDT
- Sunset: 6:04 pm CDT
- details ▼
Tomorrow, on Monday, mostly sunny and dry conditions will continue.
A substantial temperature fluctuation from a delightful 68°F at its peak to an icy 39.2°F at its lowest point is anticipated.
Expect temperatures to match September's average maximum of 72.5°F rather than October's 59°F.
Sunrise will be at 7:10 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 55min.
A substantial temperature fluctuation from a delightful 68°F at its peak to an icy 39.2°F at its lowest point is anticipated.
Expect temperatures to match September's average maximum of 72.5°F rather than October's 59°F.
Sunrise will be at 7:10 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 55min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 39°C.
Coldest hour: 6 am 39°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:45°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 206°
- Humidity: 68%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphSSW 214°
- Humidity: 75%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSW 215°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphSSW 206°
- Humidity: 88%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:10 am
- 8 am
- 43°F
- Feels like:43°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphSSW 206°
- Humidity: 87%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 55°F
- Feels like:54°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSW 211°
- Humidity: 62%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSW 210°
- Humidity: 46%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSW 204°
- Humidity: 42%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 190°
- Humidity: 43%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSSE 154°
- Humidity: 58%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:04 pm
- 8 pm
- 52°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphSE 127°
- Humidity: 74%
- Pressure: 30.36"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphSE 125°
- Humidity: 84%
- Pressure: 30.36"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, a combination of clear and cloudy weather is forecasted.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 72.5°F than with October's 59°F. The nighttime low will be relatively lower than the typical October minimum temperature of 44.2°F.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 66.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 72.5°F than with October's 59°F. The nighttime low will be relatively lower than the typical October minimum temperature of 44.2°F.
Updated: Oct 18, 2026 @ 09:48:30 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 Monday, in Island Lake, sunshine will lead the day, with clouds making only brief appearances.
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be slightly warmer than the average highest temperature of 59°F in October. The lowest temperature will be also slightly cooler than the average low of 44.2°F.
The maximum temperature will be slightly warmer than the average highest temperature of 59°F in October. The lowest temperature will be also slightly cooler than the average low of 44.2°F.
On Monday, in Island Lake, sunrise will be at 7:10 am and sunset at 6:04 pm (CDT).
Tomorrow, the daylight will last for 10h and 55min.
