ClimateAverages

Waukegan Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
22.7°C
September overnight low
12.4°C
September average
17.5°C

In September, Waukegan typically sees daytime highs of 22.7°C and overnight lows around 12.4°C. Compared to the annual average high of 13.5°C, September runs +9.2°C.

vs. annual avg high
+9.2°C
Rank among 12 months
#4 warmest
Hottest year overall
2011

Where September ranks in Waukegan

JanFebMarAprMayJunJulAugSep23°OctNovDec

FAQ

What is the average temperature in Waukegan in September?

September in Waukegan averages a daytime high of 22.7°C and an overnight low of 12.4°C.

Is September warm or cold in Waukegan?

September runs +9.2°C compared to Waukegan's annual average high of 13.5°C, ranking #4 of 12 months by warmth.

What should I pack for Waukegan in September?

Plan for daytime highs near 22.7°C and cooler evenings around 12.4°C.

Other months for Waukegan

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

ChicagoAuroraRockfordJolietNapervilleSpringfieldPeoriaNorth PeoriaElginChampaignCiceroBloomington