DuPage County (Naperville)
December
Weather in DuPage County, Illinois for December 2026
Your guide to DuPage County weather in December - trends and predictions
With an average of 4 snowy days, DuPage County usually enjoys a light touch of snow in December.
In general, the average temperature in DuPage County at the beginning of December is 0.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 4.3 °C by the end of December.
Is December a good time to visit DuPage County? check out the best time to travel to DuPage County page.
✨ Is December a good time to visit DuPage County? – Ask the AI Weatherman
Snow Forecast ❄️
Temperatures
More
22
Dry days
5
Rainy days
4
Snow days
2°/-2°
Temperatures
20 km/h
Avg max wind
80 %
Avg humidity
DuPage County Weather December
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Temperatures trend during December in DuPage County
See the weather trend as well as the moving average line
December weather in DuPage County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Heavy rain | 0° /-6° | 9.3 mm | 3.1 cm | |
| Dec. 2 |  Fog | -1° /-4° | 0.8 mm | 0.3 cm | |
| Dec. 3 |  Light sleet | 1° /-3° | 5.2 mm | 1.8 cm | |
| Dec. 4 |  Freezing fog | -1° /-6° | 0 mm | 0 cm | |
| Dec. 5 |  Light snow | -1° /-8° | 1.9 mm | 0.7 cm | |
| Dec. 6 |  Overcast | 1° /-5° | 0 mm | 0 cm | |
| Dec. 7 | Light snow | 5° /-3° | 5 mm | 3 cm | |
| Dec. 8 |  Patchy rain possible | 3° /-1° | 0 mm | 0 cm | |
| Dec. 9 | Overcast | 6° /-1° | 0.6 mm | 0 cm | |
| Dec. 10 |  Light rain | 1° /-2° | 3.1 mm | 0 cm | |
| Dec. 11 |  Sunny | 0° /-5° | 0.9 mm | 0.7 cm | |
| Dec. 12 | Light snow | -2° /-6° | 2.5 mm | 1.8 cm | |
| Dec. 13 | Light snow | -1° /-9° | 3.2 mm | 2.3 cm | |
| Dec. 14 | Light snow | 0° /-7° | 5.2 mm | 0 cm | |
| Dec. 15 | Light rain | 2° /-4° | 5.7 mm | 0 cm | |
| Dec. 16 | Light rain | 3° /-1° | 3.8 mm | 0 cm | |
| Dec. 17 | Fog | 3° /1° | 0.1 mm | 0 cm | |
| Dec. 18 |  Light snow showers | 3° /-2° | 3.6 mm | 1.1 cm | |
| Dec. 19 | Overcast | -2° /-6° | 0 mm | 0 cm | |
| Dec. 20 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Dec. 21 |  Partly cloudy | 1° /-4° | 0.1 mm | 0 cm | |
| Dec. 22 | Light rain | 2° /-1° | 4.4 mm | 0 cm | |
| Dec. 23 | Fog | 4° /1° | 0.7 mm | 0 cm | |
| Dec. 24 | Mist | 5° /2° | 0 mm | 0 cm | |
| Dec. 25 | Light rain | 5° /3° | 2.1 mm | 0 cm | |
| Dec. 26 | Fog | 5° /1° | 0 mm | 0 cm | |
| Dec. 27 | Patchy rain possible | 5° /2° | 1.5 mm | 0 cm | |
| Dec. 28 |  Moderate rain | 9° /5° | 22.6 mm | 0 cm | |
| Dec. 29 | Light drizzle | 2° /-1° | 0.6 mm | 0 cm | |
| Dec. 30 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Dec. 31 |  Moderate snow | 0° /-2° | 10.5 mm | 5.1 cm | |
| Next | |||||
Important Notice
Our weather forecast for DuPage County in December 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 DuPage County forecast closer to your planned date for the most up-to-date weather information.
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DuPage County in December - FAQ
What are the expected maximum and minimum temperatures in DuPage County during December?
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 DuPage County during December?
Moderate rainfall is anticipated in DuPage County during December, with a total of 93.6 mm spread over approximately 5 days. Considering plans for rainy days is advisable.
Will it snow in DuPage County in December 2026?
DuPage County experiences an average snowfall of 19.9 cm during December, occurring over 4 days.
What are the typical wind conditions in DuPage County during December?
The average wind speed in DuPage County during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
DuPage County snow forecast December 2026
Track daily snowfall levels and discover DuPage County’s snowy potential this December ❄️
On average, DuPage County sees 4 snowy days during December, with approximately 19.9 cm of total snowfall.
December rainfall patterns in DuPage County
Explore the daily rainfall trends and prepare for DuPage Countys December weather 💧
Typically, DuPage County has 5 rainy days in December with a total of 93.6 mm of rainfall.
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