Home / Local Weather & Traffic / Illinois / Great Lakes / Current Weather

Great Lakes, IL Weather Conditions

Updated: Thu Jan 15th 2026 6:45 PM CST

Partly Cloudy

21^°F -6^°C

Feels Like 11^°F / -12^°C

Great Lakes, IL weather condition is Partly Cloudy and 21°F.

Today's Weather in Great Lakes,IL

The current weather in Great Lakes IL as of 6:45 PM CST on Thu Jan 15th 2026, has a sky condition of Partly Cloudy with the visibility of 9 mile(s). It is 21 degrees fahrenheit but feels like 11 degrees. The barometric pressure is 29.78 - measured by inches of mercury - and is falling since its last observation. The humidity is 62 percent that's rising since the last report, with a dew point of 6 degrees fahrenheit which is rising. Wind direction is from the Southwest at 8.5 miles per hour, gusting at 11.1 miles per hour. Sunrise was at 7:18 AM and Sunset was at 4:45 PM. The moon phase is a Waning Crescent moon rising at 5:13 AM. Thank you for listening to the weather report from LocalConditions.com!

Listen to this weather report - press Read

Sun & Moon

Sun

Sunrise: 7:18 AM

Sunset: 4:45 PM

As of:

Moon

Moonrise: 5:13 AM

Moonset: 1:37 PM

Phase: Waning Crescent Moon

Ask About Weather

Test our newly developed Weather Chatbot. It provides up to 10 days of forecast information!

Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Moderate Or Heavy Snow Showers

Moderate Or Heavy Snow Showers with a high of 37°F and a low of 21°F. Probable rainfall forecasted, having an 81% chance with an estimated 0.31in. Possible light Snowfall with a 16% chance estimated at 2.3in accumulation. Winds will be moderate, blowing around 16mph. The humidity will be on the higher side, reaching around 80%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 37° \| Lo 21°	80%	81% \| est. 0.31in	16% \| est. 2.3in	15.7 mph

Overcast

Overcast with a high of 19°F and a low of 15°F. Possible light Snowfall with a 6% chance but not having significate accumulation. Winds will be moderate, blowing around 17mph. The humidity will be on the higher side, reaching around 67%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 19° \| Lo 15°	67%	0% \| est. 0in	6% \| est. 0in	16.3 mph

Light Freezing Rain

Light Freezing Rain with a high of 17°F and a low of 9°F. Probable rainfall forecasted, having a 71% chance with an estimated 0.02in. Possible light Snowfall with a 14% chance estimated at 0.1in accumulation. Winds will be moderate, blowing around 13mph. The humidity will be on the higher side, reaching around 69%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 17° \| Lo 9°	69%	71% \| est. 0.02in	14% \| est. 0.1in	12.3 mph

Light Snow Showers

Light Snow Showers with a high of 14°F and a low of 7°F. Probable rainfall forecasted, having an 84% chance with an estimated 0.01in. Snow is likely with a 48% chance having an estimated 0.1in. Winds will be moderate, blowing around 16mph. The humidity will be on the higher side, reaching around 73%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 14° \| Lo 7°	73%	84% \| est. 0.01in	48% \| est. 0.1in	15.9 mph

Overcast

Overcast with a high of 6°F and a low of 4°F. Possible light Snowfall with a 19% chance but not having significate accumulation. Winds will be moderate, blowing around 17mph. Humidity levels are comfortable, sitting around 58%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 6° \| Lo 4°	58%	0% \| est. 0in	19% \| est. 0in	16.1 mph

Yesterday 5-Day Wind

Weather Radar Map

Live Great Lakes, IL weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Monday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 21^°F. The morning temperature of 13°^F is lowest at 12am with the daytime high of 24°^F at 10pm and a low around 21°^F at 11am is expected.