Weather forecast in Crystal Lake (IL)

This data display current weather and forecast for the coming days in Crystal Lake. In addition to temperature, wind, humidity and pressure, we include data on the probability of precipitation so you can have all the information about your destination before your trip.

Crystal Lake current temperature and weather

September 5, 2025

Night
58.6°F Feels like: 57°F	Overcast
	Wind: 19.9 mph (32 Km/h) SW Pressure: 29.61 inHg (1003 hPa) Humidity: 65%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 0
Morning
57°F Feels like: 53.1°F	Sunny
	Wind: 20.1 mph (32.4 Km/h) W Pressure: 29.73 inHg (1007 hPa) Humidity: 69%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 1.6
Day
63.1°F Feels like: 63°F	Partly Cloudy
	Wind: 17.9 mph (28.8 Km/h) W Pressure: 29.84 inHg (1011 hPa) Humidity: 50%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 4.3
Evening
51.1°F Feels like: 48.4°F	Clear
	Wind: 8.5 mph (13.7 Km/h) W Pressure: 29.93 inHg (1014 hPa) Humidity: 77%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 0

In order for you to be able to estimate what the weather is like in Crystal Lake throughout the year, we provide monthly data for the last few years. Select the month you are interested in.

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Our report for Crystal Lake is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.