Macon County (Decatur)
December
Weather in Macon County, Illinois for December 2026
Your guide to Macon County weather in December - trends and predictions
With an average of 4 snowy days, Macon County usually enjoys a light touch of snow in December.
In general, the average temperature in Macon County at the beginning of December is 0.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 6.7 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
19
Dry days
8
Rainy days
4
Snow days
3°/-2°
Temperatures
23 km/h
Avg max wind
82 %
Avg humidity
Macon County Weather December
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Temperatures trend during December in Macon County
See the weather trend as well as the moving average line
December weather in Macon County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Sunny | 0° /-6° | 1.4 mm | 0.4 cm | |
| Dec. 2 |  Overcast | -1° /-5° | 8.2 mm | 4.4 cm | |
| Dec. 3 | Sunny | 0° /-7° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 0° /-6° | 0 mm | 0 cm | |
| Dec. 5 | Sunny | -1° /-11° | 0 mm | 0 cm | |
| Dec. 6 |  Partly cloudy | 0° /-5° | 0 mm | 0 cm | |
| Dec. 7 | Sunny | 4° /-4° | 0 mm | 0 cm | |
| Dec. 8 |  Cloudy | 4° /-3° | 0 mm | 0 cm | |
| Dec. 9 |  Moderate rain | 5° /-1° | 4.7 mm | 0 cm | |
| Dec. 10 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 11 |  Light snow | 0° /-4° | 0 mm | 0 cm | |
| Dec. 12 | Overcast | -1° /-4° | 4.3 mm | 3.1 cm | |
| Dec. 13 | Overcast | -1° /-8° | 11.2 mm | 8.1 cm | |
| Dec. 14 |  Moderate or heavy rain shower | -4° /-9° | 23.4 mm | 0 cm | |
| Dec. 15 |  Fog | 1° /-8° | 2.4 mm | 0 cm | |
| Dec. 16 | Overcast | 5° /-2° | 0 mm | 0 cm | |
| Dec. 17 |  Freezing fog | 5° /-2° | 0 mm | 0 cm | |
| Dec. 18 |  Light rain | 5° /0° | 1.6 mm | 0 cm | |
| Dec. 19 | Overcast | 1° /-4° | 0 mm | 0 cm | |
| Dec. 20 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 2° /-3° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 5° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 4° /0° | 0 mm | 0 cm | |
| Dec. 24 | Freezing fog | 3° /0° | 0 mm | 0 cm | |
| Dec. 25 | Mist | 5° /2° | 0 mm | 0 cm | |
| Dec. 26 | Fog | 8° /4° | 0 mm | 0 cm | |
| Dec. 27 | Moderate or heavy rain shower | 9° /6° | 12.2 mm | 0 cm | |
| Dec. 28 | Overcast | 14° /8° | 5.3 mm | 0 cm | |
| Dec. 29 | Moderate rain | 3° /0° | 9.3 mm | 0 cm | |
| Dec. 30 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 31 | Light rain | 4° /-1° | 5.7 mm | 0 cm | |
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Important Notice
Our weather forecast for Macon 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 Macon County forecast closer to your planned date for the most up-to-date weather information.
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Macon County in December - FAQ
What are the expected maximum and minimum temperatures in Macon County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Macon County during December?
Moderate rainfall is anticipated in Macon County during December, with a total of 89.8 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
Will it snow in Macon County in December 2026?
Macon County experiences an average snowfall of 16.08 cm during December, occurring over 4 days.
What are the typical wind conditions in Macon County during December?
The average wind speed in Macon County during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
Macon County snow forecast December 2026
Track daily snowfall levels and discover Macon County’s snowy potential this December ❄️
On average, Macon County sees 4 snowy days during December, with approximately 16.1 cm of total snowfall.
December rainfall patterns in Macon County
Explore the daily rainfall trends and prepare for Macon Countys December weather 💧
Typically, Macon County has 8 rainy days in December with a total of 89.8 mm of rainfall.
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Where is Macon County?Get accurate weather forecasts for Macon County, located at latitude 39.84 and longitude -88.955. Stay updated with localized weather information tailored for Macon County.
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