Elgin, IL Weather & Climate Normals
Elgin's real weather, in one number
Elgin, IL scores 44/100 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.
Elgin's hottest and coldest months
Elgin's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 22°F, a 51.6°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Elgin
Elgin averages 39.85in of precipitation a year across roughly 124 days with measurable rain or snow, and 32.1in of snow a year.
Where Elgin ranks
Elgin ranks 3654 of 4876 US cities in this dataset for comfort score, and 160 of 330 within IL. About 114,701 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from ELGIN, IL US, 2.6 miles from Elgin, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station