Weather in Illinois for December 2024
With an average of 5 snowy days, Illinois usually enjoys a light touch of snow in December.
According to Illinois snow forecast for December 2024, no snow is expected until the end of the month.Until now, December 2024 in Illinois is cooler than usual, with temperatures averaging 0.9 °F, this is -3.8 °F below the typical seasonal average.
Expect cooler weather in the next days in Illinois with the forecast suggesting a temperature of 5.8 °F, lower than the historical average.
In general, the average temperature in Illinois at the beginning of December is 5 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 9.6 °F by the end of December.
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Illinois in December average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  5° | ||||||
| 2  6° | 3  6° | 4 4° | 5  4° | 6 4° | 7 6° | 8 5° |
| 9 7° | 10  7° | 11 5° | 12 3° | 13  4° | 14 6° | 15 7° |
| 16 6° | 17 3° | 18 2° | 19 1° | 20 4° | 21 -3° | 22 3° |
| 23 3° | 24 4° | 25  6° | 26 8° | 27 12° | 28 12° | 29 12° |
| 30 10° | 31 7° |
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Temperatures trend during December in Illinois
December weather day by day
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | 5° /-2° | 3.8 mm | 0 cm | |
| Dec. 2 | Patchy rain possible | 6° /1° | 1 mm | 0 cm | |
| Dec. 3 | Partly cloudy | 6° /0° | 4.2 mm | 0 cm | |
| Dec. 4 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 5 | Moderate or heavy rain shower | 4° /-2° | 4.6 mm | 0.4 cm | |
| Dec. 6 | Overcast | 4° /-3° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 6° /-1° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 5° /1° | 0.1 mm | 0 cm | |
| Dec. 9 | Patchy rain possible | 7° /2° | 3.7 mm | 0 cm | |
| Dec. 10 | Sunny | 7° /1° | 3.4 mm | 0 cm | |
| Dec. 11 | Moderate rain at times | 5° /0° | 3 mm | 0 cm | |
| Dec. 12 | Partly cloudy | 3° /-2° | 8.4 mm | 0 cm | |
| Dec. 13 | Cloudy | 4° /-1° | 0.1 mm | 0 cm | |
| Dec. 14 | Overcast | 6° /0° | 6.9 mm | 0 cm | |
| Dec. 15 | Patchy rain possible | 7° /2° | 5.3 mm | 0 cm | |
| Dec. 16 | Overcast | 6° /1° | 2.7 mm | 0 cm | |
| Dec. 17 | Overcast | 3° /0° | 0.3 mm | 0 cm | |
| Dec. 18 | Overcast | 2° /-2° | 2.1 mm | 0.4 cm | |
| Dec. 19 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 20 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Partly cloudy | -3° /-5° | 0 mm | 0 cm | |
| Dec. 22 | Overcast | 3° /-6° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 3° /-1° | 0 mm | 0 cm | |
| Dec. 24 | Patchy rain possible | 4° /2° | 0.2 mm | 0 cm | |
| Dec. 25 | Moderate rain | 6° /2° | 19.2 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 8° /6° | 0.7 mm | 0 cm | |
| Dec. 27 | Patchy rain possible | 12° /8° | 2.2 mm | 0 cm | |
| Dec. 28 | Patchy rain possible | 12° /7° | 1.7 mm | 0 cm | |
| Dec. 29 | Patchy rain possible | 12° /9° | 0.7 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 10° /7° | 0.3 mm | 0 cm | |
| Dec. 31 | Patchy rain possible | 7° /5° | 0.4 mm | 0 cm | |
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Where is Illinois?Get accurate weather forecasts for Illinois, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Illinois.