Click on a day for an hourly weather forecast
The weather in Decatur in January is very cold with temperatures between -6°C and 0°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Decatur during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Decatur is going to experience quite a number of days of snow during January. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Decatur in January 2025.
If you’re planning to visit Decatur in the near future, we highly recommend that you review the 14 day weather forecast for Decatur before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -6° | 5 | 15 | 11 | 52 mm | Awful | Decatur in January |
| February | 2° / -5° | 4 | 15 | 10 | 53 mm | Awful | Decatur in February |
| March | 10° / 2° | 7 | 20 | 4 | 78 mm | Awful | Decatur in March |
| April | 16° / 7° | 7 | 22 | 1 | 113 mm | Ok | Decatur in April |
| May | 22° / 14° | 8 | 23 | 0 | 127 mm | Ok | Decatur in May |
| June | 27° / 18° | 7 | 23 | 0 | 140 mm | Good | Decatur in June |
| July | 28° / 19° | 6 | 25 | 0 | 107 mm | Perfect | Decatur in July |
| August | 27° / 18° | 5 | 26 | 0 | 98 mm | Perfect | Decatur in August |
| September | 25° / 15° | 4 | 26 | 0 | 75 mm | Perfect | Decatur in September |
| October | 18° / 9° | 5 | 26 | 0 | 75 mm | Good | Decatur in October |
| November | 10° / 3° | 5 | 24 | 2 | 65 mm | Bad | Decatur in November |
| December | 4° / -2° | 5 | 19 | 7 | 52 mm | Awful | Decatur in December |