Weather information for the Decatur area is provided below. Average temperatures, climate details and current forecasts are included!
Climate
Monthly average temperatures and precipitation for Decatur are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 48° | 52° | 62° | 72° | 78° | 86° | 88° | 88° | 84° | 74° | 62° | 52° |
| Avg. Low | 27° | 30° | 38° | 47° | 55° | 64° | 67° | 65° | 58° | 46° | 38° | 31° |
| Daily Avg | 38° | 42° | 51° | 60° | 68° | 75° | 78° | 77° | 72° | 60° | 51° | 42° |
| Avg. Precip. | 5.1 in | 4.6 in | 6.4 in | 4.8 in | 4.7 in | 4.0 in | 4.6 in | 3.5 in | 3.6 in | 3.3 in | 4.7 in | 5.6 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
