Forest, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.8 °F (low) to 75.5 °F (high). Annual precipitation averages 57.1 Inches. Forest is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.0 °F | 54.9 °F | 5.62 in. |
| February | 38.2 °F | 59.5 °F | 5.14 in. |
| March | 45.4 °F | 67.5 °F | 5.12 in. |
| April | 53.5 °F | 75.8 °F | 6.1 in. |
| May | 62.5 °F | 83.3 °F | 4.89 in. |
| June | 69.6 °F | 89.8 °F | 3.91 in. |
| July | 72.3 °F | 92.4 °F | 4.03 in. |
| August | 71.1 °F | 92.5 °F | 4.05 in. |
| September | 64.5 °F | 88.2 °F | 3.46 in. |
| October | 53.0 °F | 78.7 °F | 4.61 in. |
| November | 43.3 °F | 66.4 °F | 4.55 in. |
| December | 37.5 °F | 57.3 °F | 5.59 in. |
| Annual | 53.8 °F | 75.5 °F | 57.07 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |