| NWS Forecast for: Great Lakes IL Issued by: National Weather Service Chicago, IL Last Update: 2:31 pm CDT Sep 9, 2026 |  |
| Tonight: Mostly cloudy, with a low around 64. West wind around 5 mph becoming north northwest after midnight. Winds could gust as high as 10 mph. Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 75. North northwest wind around 5 mph becoming east northeast in the afternoon. Thursday Night: Mostly clear, with a low around 60. East northeast wind around 5 mph becoming calm in the evening. Friday: Sunny, with a high near 77. Light south wind becoming south southeast 5 to 10 mph in the morning. Friday Night: Mostly clear, with a low around 62. Southeast wind 5 to 10 mph. Saturday: Mostly sunny, with a high near 82. Saturday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 20%. Sunday: Mostly sunny, with a high near 75. Sunday Night: A chance of showers after 1am. Mostly cloudy, with a low around 65. Monday: A chance of showers. Partly sunny, with a high near 82. Monday Night: A chance of showers. Mostly cloudy, with a low around 67. Tuesday: A chance of showers. Mostly cloudy, with a high near 76. Tuesday Night: A chance of showers. Mostly cloudy, with a low around 62. Wednesday: A chance of showers. Partly sunny, with a high near 72. | |
| Great Lakes IL 42.3°N 87.85°W | |
Visit your local NWS office at: https://www.weather.gov/lot |
