Fort Smith, MT
Full City Profile · Montana · Big Horn County County
4.7
/5.0
A+
Excellent
105
Population
76/sq mi density
$52,292
Median Income
$32,880 per capita
$129,200
Home Value
$204,573 Zillow
49°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A
Economy
4.0 / 5.0
$52,292 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$129,200 home value, /mo rent
A+
Education
5.0 / 5.0
0.0% bachelor's degree or higher
Fort Smith experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 29°F in January while summers reach 74°F in July. Annual precipitation totals 16.7 inches. The area receives 43.9 inches of snow annually.
Temperature
29°F Jan (-2°C)
74°F Jul (23°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 3,194 ft (974 m) |
| Area | 1.4 sq mi (3.6 km²) |
| Population Density | 76/sq mi |
| Coordinates | 45.3171°N, 107.9351°W |
| Timezone | America/Denver |
| County | Big Horn County County |
| Nearest Airport | Billings Logan International (BIL) 45 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 57.2 / 100 |
| Social Vulnerability | 94.2 / 100 |
| Community Resilience | 4.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 0.7 in | Coldest, Driest |
| February | 31°F (-1°C) | 0.8 in | |
| March | 39°F (4°C) | 1.2 in | |
| April | 47°F (8°C) | 2.0 in | |
| May | 56°F (13°C) | 2.6 in | Wettest |
| June | 66°F (19°C) | 2.3 in | |
| July | 74°F (23°C) | 1.2 in | Warmest |
| August | 72°F (22°C) | 0.8 in | |
| September | 62°F (17°C) | 1.7 in | |
| October | 49°F (10°C) | 2.0 in | |
| November | 38°F (3°C) | 0.8 in | |
| December | 30°F (-1°C) | 0.7 in |
Fort Smith has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 16.7 inches, with May being the wettest month (2.6") and January the driest (0.7").