Forest Hill Village, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.1 °F (low) to 55.8 °F (high). Annual precipitation averages 16.3 Inches. Forest Hill Village is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.6 °F | 32.2 °F | 1.28 in. |
| February | 19.4 °F | 36.1 °F | 0.92 in. |
| March | 25.3 °F | 45.2 °F | 1.08 in. |
| April | 31.7 °F | 55.2 °F | 1.37 in. |
| May | 39.3 °F | 65.3 °F | 1.79 in. |
| June | 45.7 °F | 71.4 °F | 2.6 in. |
| July | 49.9 °F | 82.5 °F | 1.15 in. |
| August | 48.2 °F | 82.3 °F | 0.9 in. |
| September | 41.1 °F | 71.2 °F | 1.2 in. |
| October | 32.3 °F | 55.4 °F | 1.4 in. |
| November | 25.8 °F | 40.7 °F | 1.32 in. |
| December | 19.7 °F | 32.0 °F | 1.28 in. |
| Annual | 33.1 °F | 55.8 °F | 16.29 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |