Best Time to Visit Naperville
Best time: Jul, Jun, May, Aug.
Jul is warmest (29.7°C high); Jun is rainiest (105 mm).
Naperville weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | -1.1 | -10.5 | 40 | 2.5 |
| Feb | 2.1 | -7.9 | 37 | 4 |
| Mar | 8.5 | -2.1 | 66 | 5.7 |
| Apr | 15.4 | 3.2 | 97 | 7.3 |
| May | 22.3 | 8.8 | 96 | 8.7 |
| Jun | 27.6 | 14.2 | 105 | 9.8 |
| Jul | 29.7 | 17.2 | 98 | 9.7 |
| Aug | 28.3 | 16.3 | 104 | 8.4 |
| Sep | 24.3 | 11.7 | 94 | 6.9 |
| Oct | 17.8 | 5.1 | 68 | 4.6 |
| Nov | 9 | -0.6 | 77 | 2.7 |
| Dec | 1.7 | -7 | 60 | 2.1 |
Average high temperature
Best months by activity
Overall: JulJunMayAug
Beaches: JulAugJun
Hiking: OctMaySepJun
Sightseeing: JulMayJunAug
Naperville quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Wet months (Apr, May, Jun, Jul, Aug, Sep): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Naperville?
Jul, Jun, May, Aug.
What is the rainiest month?
Jun, about 105 mm.
What is the warmest month?
Jul, with average highs of 29.7°C.
Where to stay
See Naperville hotels · Book Naperville tours & activities
All destinations · Best time to visit New York · Best time to visit Los Angeles · Best time to visit Miami · Best time to visit San Francisco
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.