Naperville
January
Weather in Naperville for January 2026
Your guide to Naperville weather in January - trends and predictions
The climate of Naperville in January is quite snowy, averaging 11 snowy days.
In general, the average temperature in Naperville at the beginning of January is 0 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 2.9 °F by the end of January.
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Snow Forecast ❄️
Temperatures
More
16
Dry days
4
Rainy days
11
Snow days
-2°/-7°
Temperatures
19 km/h
Avg max wind
87 %
Avg humidity
Naperville Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  1° | 2  2° | 3  -0° | ||||
| 4  -2° | 5  -1° | 6  -0° | 7 -0° | 8  -2° | 9 -1° | 10 -1° |
| 11 -1° | 12 0° | 13  -2° | 14 -11° | 15  -11° | 16 -7° | 17 -5° |
| 18 -4° | 19 -10° | 20 -10° | 21  -10° | 22 -3° | 23 -2° | 24  -3° |
| 25  1° | 26 -1° | 27 2° | 28 3° | 29 5° | 30 5° | 31 5° |
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Temperatures trend during January in Naperville
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 | Partly cloudy | 1° /-3° | 0 mm | 0 cm | |
| Jan. 2 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Jan. 3 | Light freezing rain | 0° /-4° | 0 mm | 0 cm | |
| Jan. 4 | Sunny | -2° /-7° | 0 mm | 0 cm | |
| Jan. 5 | Patchy rain possible | -1° /-6° | 0 mm | 0 cm | |
| Jan. 6 | Heavy snow | 0° /-3° | 1.8 mm | 1.5 cm | |
| Jan. 7 | Overcast | 0° /-4° | 0.1 mm | 0 cm | |
| Jan. 8 | Light snow | -2° /-5° | 0.4 mm | 0.4 cm | |
| Jan. 9 | Heavy snow | -1° /-5° | 9.7 mm | 8 cm | |
| Jan. 10 | Light freezing rain | -1° /-5° | 0.5 mm | 0.1 cm | |
| Jan. 11 | Light snow | -1° /-6° | 0.6 mm | 0.5 cm | |
| Jan. 12 | Heavy snow | 0° /-4° | 12.9 mm | 9.9 cm | |
| Jan. 13 | Moderate snow | -2° /-12° | 1.9 mm | 0.1 cm | |
| Jan. 14 | Light freezing rain | -11° /-16° | 0.1 mm | 0 cm | |
| Jan. 15 | Mist | -11° /-20° | 0 mm | 0 cm | |
| Jan. 16 | Partly cloudy | -7° /-17° | 0 mm | 0 cm | |
| Jan. 17 | Overcast | -5° /-12° | 0 mm | 0 cm | |
| Jan. 18 | Light freezing rain | -4° /-12° | 0.6 mm | 0.5 cm | |
| Jan. 19 | Moderate snow | -10° /-16° | 0.7 mm | 0.6 cm | |
| Jan. 20 | Partly cloudy | -10° /-20° | 0 mm | 0 cm | |
| Jan. 21 | Freezing fog | -10° /-21° | 0 mm | 0 cm | |
| Jan. 22 | Heavy snow | -3° /-12° | 1.4 mm | 0.4 cm | |
| Jan. 23 | Light freezing rain | -2° /-6° | 5.6 mm | 0 cm | |
| Jan. 24 | Light rain | -3° /-8° | 2.6 mm | 0 cm | |
| Jan. 25 | Moderate rain | 1° /-4° | 5.8 mm | 0 cm | |
| Jan. 26 | Fog | -1° /-5° | 2.2 mm | 0 cm | |
| Jan. 27 | Fog | 2° /-4° | 0.3 mm | 0 cm | |
| Jan. 28 | Overcast | 3° /-3° | 0.1 mm | 0 cm | |
| Jan. 29 | Partly cloudy | 5° /-2° | 0 mm | 0 cm | |
| Jan. 30 | Moderate snow | 5° /-1° | 0.3 mm | 0.1 cm | |
| Jan. 31 | Sunny | 5° /-1° | 3 mm | 0 cm | |
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Important Notice
Our weather forecast for Naperville in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Naperville forecast closer to your planned date for the most up-to-date weather information.
Naperville in January - FAQ
What are the expected maximum and minimum temperatures in Naperville during January?
Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Naperville during January?
Moderate rainfall is anticipated in Naperville during January, with a total of 95 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
Will it snow in Naperville in January 2026?
Naperville experiences an average snowfall of 43.81 cm during January, occurring over 11 days.
What are the typical wind conditions in Naperville during January?
The average wind speed in Naperville during January is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Naperville snow forecast January 2026
Track daily snowfall levels and discover Naperville’s snowy potential this January ❄️
January rainfall patterns in Naperville
Explore the daily rainfall trends and prepare for Napervilles January weather 💧
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