Island Lake stays cool in summer
Island Lake has cold, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 15°, and about 35 inches of snow falls in a normal winter. A typical November afternoon reaches 47°, and nights fall to 31°.
Getting the latest forecast from the National Weather Service…
What stands out about Island Lake’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Island Lake’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Island Lake.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Island Lake itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Mc Henry -wg Stratton L&d, IL (3 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.