Weather forecast for todayCrystal Lake, IL

Weather forecast for today

Current condition 4:15 pm CDT

  • 57°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 10mphSSW 210°
  • Humidity: 38%
  • Dewpoint: 32°F
  • Pressure: 30.44"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
In Crystal Lake, currently, the sun is shining uninterrupted, making for an excellent day outdoors.
The temperature is a moderate 57.2°F, and the apparent temperature is evaluated at a crisp 53.6°F.

Saturday Oct 17, 2026

  • min.
  • 39°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphSSW 211°
  • Humidity: 64%
  • UV index: 0
  • Sunrise: 7:08 am CDT
  • Sunset: 6:08 pm CDT
  • ▼
In Crystal Lake, through the afternoon and beyond, expect no clouds in sight and perfectly clear weather.
The lowest temperature will be a cold 39.2°F.
Sunrise was at 7:08 am and sunset will be at 6:08 pm; the daylight will last for 11h and 0min.

Hourly overview

Hourly temperatures

Warmest hour: 5 pm 55°C.
Coldest hour: 12 am 41°C.

Chance of precipitation

Highest chance: 12 am 2%.

Hourly weather forecast

  • 5 pm
  • 55°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSW 222°
  • Humidity: 40%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSW 215°
  • Humidity: 47%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:08 pm
  • 7 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 212°
  • Humidity: 53%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphSSW 210°
  • Humidity: 60%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 45°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 210°
  • Humidity: 63%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 211°
  • Humidity: 66%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 43°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSW 208°
  • Humidity: 68%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 12 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 208°
  • Humidity: 70%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 1 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 209°
  • Humidity: 72%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSW 210°
  • Humidity: 74%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Saturday, bright and mostly sunny weather is expected.
The temperature will be between a maximum of 55.4°F and a minimum of 42.8°F.
Updated: Oct 17, 2026 @ 21:15:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (4:15 pm CDT) is 57.2°F.

Today, the weather will remain pristine and clear.

On Saturday, in Crystal Lake, sunrise was at 7:08 am and sunset will be at 6:08 pm (CDT).

In Crystal Lake, today, there will be 11h and 0min of daylight.