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Sweet Grass, MT
Full City Profile · Montana · Toole County County
2.4
/5.0
C
Fair
64
Population
133/sq mi density
$79,886
Median Income
$35,392 per capita
44°F
Avg Temperature
200 sunny days/yr
232
Violent Crime/100K
4,147 property/100K
C
Overall
2.4 / 5.0
Fair overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$79,886 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
232 violent crimes/100K
F
Education
1.5 / 5.0
5.7% bachelor's degree or higher
Sweet Grass has a cool climate with an average annual temperature of 44°F (7°C). Winters average 21°F in January while summers reach 68°F in July. The area gets 200 sunny days per year. Air quality is rated Good with a median AQI of 26.
Temperature
21°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 43.5°F |
| 19% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 200 days/yr |
Geography
| Elevation | 3,552 ft (1,083 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 133/sq mi |
| Coordinates | 48.9928°N, 111.9668°W |
| Timezone | America/Denver |
| County | Toole County County |
| Nearest Airport | Cut Bank International (CTB) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 26.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 13.0 / 100 |
| Social Vulnerability | 64.7 / 100 |
| Community Resilience | 19.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 0.4 in | Coldest |
| February | 25°F (-4°C) | 0.3 in | Driest |
| March | 33°F (1°C) | 0.6 in | |
| April | 44°F (7°C) | 0.9 in | |
| May | 53°F (12°C) | 2.4 in | |
| June | 61°F (16°C) | 2.7 in | Wettest |
| July | 68°F (20°C) | 1.4 in | Warmest |
| August | 66°F (19°C) | 1.6 in | |
| September | 56°F (13°C) | 1.3 in | |
| October | 45°F (7°C) | 0.6 in | |
| November | 31°F (-1°C) | 0.4 in | |
| December | 22°F (-6°C) | 0.4 in |
Sweet Grass has a seasonal temperature swing of 46°F / from 21°F in January to 68°F in July. Total annual precipitation is 13.1 inches, with June being the wettest month (2.7") and February the driest (0.3").