Weather in Naperville: January
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Average day temperature: | 28.4°F |
| Average night temperature: | 22.7°F | |
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Number of sunny days: | 7 days |
| Day length: | 9.2 - 10.0 hours | |
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Number of days with precipitation: | 2 days |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Naperville |
weather in
February
February
| Naperville |
Air temperature in January, °F
Show year:
2026
2025
2024
The highest day temperature during January of 2026 was 52°F. At the same time the lowest night temperature was -9°F. Daily and nightly averages during January were 25.0°F and 18.3°F.
Sunny, partly cloudy and cloudy days
Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Naperville in January is 0.9 in. Other months of the year show relatively similar values.
Wind speed in January, mph
The average wind speed value in January is 9.0 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 3.9.
Best time for vacation in Naperville
Naperville on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Naperville
Local time: 18:31
February 05, thursday
2100
28°F
NE
7 mph
7 mph
February 06, friday
0000
28°F
E
6 mph
6 mph
0300
28°F
E
6 mph
6 mph
0600
28°F
E
6 mph
6 mph
0900
30°F
SE
14 mph
14 mph
1200
36°F
SE
16 mph
16 mph
1500
36°F
SE
15 mph
15 mph
1800
32°F
S
15 mph
15 mph
