Weather forecast for tomorrowCrystal Lake, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 63°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 15mphSSW 206°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:06 pm CDT
- details ▼
On Sunday, October 18, sunshine is forecasted under mostly clear skies.
Temperatures are anticipated to peak at a breezy 62.6°F and drop to a minimum of a wintry 37.4°F.
Tomorrow's forecasted high will be in line with October's typical peak of 59°F.
Sunrise will be at 7:09 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 57min.
Temperatures are anticipated to peak at a breezy 62.6°F and drop to a minimum of a wintry 37.4°F.
Tomorrow's forecasted high will be in line with October's typical peak of 59°F.
Sunrise will be at 7:09 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 57min.
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 5%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphSSW 205°
- Humidity: 69%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:41°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 5mphSSW 214°
- Humidity: 76%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphSW 215°
- Humidity: 84%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphSSW 205°
- Humidity: 86%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:09 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSSW 205°
- Humidity: 85%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSSW 210°
- Humidity: 59%
- 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 211°
- Humidity: 44%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 66°F
- Feels like:66°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSW 206°
- Humidity: 41%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSW 198°
- Humidity: 41%
- 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: 2mphS 172°
- Humidity: 56%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:06 pm
- 8 pm
- 52°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphSSE 159°
- Humidity: 71%
- Pressure: 30.33"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphSE 144°
- Humidity: 80%
- Pressure: 30.36"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, primarily sun-filled and occasionally cloudy weather is expected.
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.
Tomorrow, the high temperature will be similar to October's average. Tomorrow, the overnight low is more alike with November's usual minimum of 31.8°F than October's 43.9°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.
Tomorrow, the high temperature will be similar to October's average. Tomorrow, the overnight low is more alike with November's usual minimum of 31.8°F than October's 43.9°F.
Updated: Oct 18, 2026 @ 04:35:34 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 Crystal Lake, sunny and dry conditions are anticipated.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 59°F in October. The lowest temperature tomorrow will be a few degrees lower than the average low temperature.
The highest temperature will be in line with the average maximum of 59°F in October. The lowest temperature tomorrow will be a few degrees lower than the average low temperature.
On Sunday, in Crystal Lake, sunrise will be at 7:09 am and sunset at 6:06 pm (CDT).
In Crystal Lake, tomorrow, there will be 10h and 57min of daylight.
