Forest City, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.8 °C (low) to 28 °C (high). Annual precipitation averages 1425.5 Millimeters. Forest City is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.9 °C | 21.3 °C | 75.44 mm |
| February | 10.4 °C | 22.9 °C | 61.72 mm |
| March | 12.6 °C | 25.3 °C | 86.87 mm |
| April | 15.7 °C | 28.3 °C | 74.68 mm |
| May | 19.1 °C | 30.9 °C | 99.57 mm |
| June | 22.2 °C | 32.6 °C | 209.55 mm |
| July | 23.1 °C | 33.2 °C | 194.82 mm |
| August | 23.3 °C | 33.1 °C | 218.44 mm |
| September | 22.3 °C | 31.8 °C | 183.9 mm |
| October | 18.7 °C | 29.1 °C | 96.77 mm |
| November | 13.9 °C | 25.2 °C | 56.39 mm |
| December | 10.8 °C | 22.6 °C | 67.31 mm |
| Annual | 16.8 °C | 28 °C | 1425.46 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |