Weather forecast for 10 daysCrystal Lake, IL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 63°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 206°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:06 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, the outlook remains bright and sunny.
Temperatures are predicted to range from a maximum of a comfortable 62.6°F to a minimum of an icy 37.4°F.
The temperature will be in line with October's average maximum 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 predicted to range from a maximum of a comfortable 62.6°F to a minimum of an icy 37.4°F.
The temperature will be in line with October's average maximum 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.
10-day overview
Daily temperatures
Warmest period: Wednesday - Friday 72°C.
Coldest day: tomorrow 63°C.
Coldest day: tomorrow 63°C.
Chance of precipitation
Highest chance: 7%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphSSW 208°
- Humidity: 70%
- UV index: 0
- Sunrise: 7:08 am CDT
- Sunset: 6:08 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 63°F
- 37°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 206°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:09 am CDT
- Sunset: 6:06 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 204°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:10 am CDT
- Sunset: 6:05 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphESE 104°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:12 am CDT
- Sunset: 6:03 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphSSW 196°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:13 am CDT
- Sunset: 6:02 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 72°F
- 45°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 5mphESE 114°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:14 am CDT
- Sunset: 6:00 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 46°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 7mphSE 131°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:15 am CDT
- Sunset: 5:59 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 48°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphSSE 158°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:16 am CDT
- Sunset: 5:57 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 45°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 204°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:18 am CDT
- Sunset: 5:56 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 46°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNE 37°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:19 am CDT
- Sunset: 5:55 pm CDT
- details ▼
Over the next ten days, conditions will reflect that a combination of mostly clear and cloud-filled weather is forecasted.
Rain is not anticipated in Crystal Lake in the upcoming days.
In the upcoming days, the highest temperature will vary between 62.6°F and 71.6°F, while the low temperature range extends from 37.4°F to 48.2°F.
Wednesday through Friday, with the highest temperature of 71.6°F, will be the warmest days; with the highest temperature of 62.6°F, Sunday will be the coldest day.
Rain is not anticipated in Crystal Lake in the upcoming days.
In the upcoming days, the highest temperature will vary between 62.6°F and 71.6°F, while the low temperature range extends from 37.4°F to 48.2°F.
Wednesday through Friday, with the highest temperature of 71.6°F, will be the warmest days; with the highest temperature of 62.6°F, Sunday will be the coldest day.
Updated: Oct 18, 2026 @ 01:41:48 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, expect sunny weather with a crisp, clear sky.
Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 37.4°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be a few degrees lower than the average low temperature.
The maximum temperature tomorrow will be in line with the average highest temperature in October. Tomorrow, the lowest temperature 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.
