Lake Bluff, IL Weather & Climate Normals
Lake Bluff's real weather, in one number
Lake Bluff, IL scores 48/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Lake Bluff's hottest and coldest months
Lake Bluff's hottest month is Jul, averaging 72°F; its coldest is Jan, averaging 23°F, a 49.7°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Lake Bluff
Rain and snow totals are both unavailable at Lake Bluff's nearest NOAA station, so neither figure is shown here rather than assumed.
Where Lake Bluff ranks
Lake Bluff ranks 2508 of 4876 US cities in this dataset for comfort score, and 81 of 330 within IL. About 5,600 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from WAUKEGAN, IL US, 4.9 miles from Lake Bluff, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is