All Countries
Three Forks, MT
Full City Profile · Montana · Gallatin County County
3.1
/5.0
B
Good
2,034
Population
1,413/sq mi density
$80,394
Median Income
$35,314 per capita
$382,400
Home Value
$540,645 Zillow
$1,263
Median Rent
27.3% income on rent
45°F
Avg Temperature
311 sunny days/yr
190
Violent Crime/100K
1,139 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$80,394 median income, 0.7% unemployment
B+
Affordability
4.0 / 5.0
$382,400 home value, $1,263/mo rent
F
Safety
1.0 / 5.0
190 violent crimes/100K
C+
Education
2.7 / 5.0
21.3% bachelor's degree or higher
Three Forks has a cool climate with an average annual temperature of 45°F (7°C). Winters average 24°F in January while summers reach 69°F in July. The area gets 311 sunny days per year. Annual precipitation totals 13.0 inches. Air quality is rated Good with a median AQI of 26.
Temperature
24°F Jan (-4°C)
69°F Jul (21°C)
| Annual Average | 45.4°F |
| 16% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 4,076 ft (1,242 m) |
| Area | 1.5 sq mi (3.9 km²) |
| Population Density | 1,413/sq mi |
| Coordinates | 45.8896°N, 111.5527°W |
| Timezone | America/Denver |
| County | Gallatin County County |
| Nearest Airport | Bozeman Yellowstone International (BZN) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| NO₂ (Nitrogen Dioxide) | 4.0 ppb |
| CO (Carbon Monoxide) | 0.22 ppm |
| PM2.5 (Fine Particles) | 3.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 81.0 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 71.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Yellowstone (176 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yellowstone | Caldera(s) | 2,805 m (9,203 ft) | -1350 | 176 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 0.4 in | Coldest |
| February | 30°F (-1°C) | 0.3 in | Driest |
| March | 36°F (2°C) | 0.7 in | |
| April | 45°F (7°C) | 0.9 in | |
| May | 53°F (12°C) | 2.1 in | Wettest |
| June | 62°F (17°C) | 2.1 in | |
| July | 69°F (21°C) | 1.2 in | Warmest |
| August | 67°F (20°C) | 1.1 in | |
| September | 57°F (14°C) | 1.3 in | |
| October | 46°F (8°C) | 0.8 in | |
| November | 33°F (0°C) | 0.4 in | |
| December | 25°F (-4°C) | 0.3 in |
Three Forks has a seasonal temperature swing of 45°F / from 24°F in January to 69°F in July. Total annual precipitation is 11.7 inches, with May being the wettest month (2.1") and February the driest (0.3").