South Elgin, IL Weather & Climate Normals
South Elgin's real weather, in one number
South 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.
South Elgin's hottest and coldest months
South 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 South Elgin
South 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 South Elgin ranks
South Elgin ranks 3743 of 4876 US cities in this dataset for comfort score, and 186 of 330 within IL. About 24,921 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, 5.2 miles from South 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