Dillon, MT Weather
Dillon, MT climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 83.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 13.50 degrees Fahrenheit.
Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 36 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.
The annual average precipitation at Dillon is 11.65 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 2.25 Inches.
Weather Data
Current Conditions
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Overcast, 41°F | Humidity: 43% | Dewpoint: 20°F |
| Wind Speed: SW 13 MPH | Heat Index: 41°F | ||
| Barometer: 29.97 in. | Wind Chill: 34°F |
Weather Forecast
| Hi: 36°F | Rest of today: Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. Southwest winds up to 10 mph. | |
| Lo: 18°F | ||
| Hi: 33°F | Sunday: Partly cloudy. Highs 30 to 35. Southwest winds up to 5 mph. | |
| Lo: 23°F | ||
| Hi: 46°F | Monday: Partly cloudy. Warmer. Highs 40 to 50. South winds 5 to 10 mph. | |
| Lo: 26°F | ||
| Hi: 41°F | Tuesday: Mostly cloudy. Highs 35 to 45. | |
| Lo: 25°F | ||
| Hi: 36°F | Wednesday: Mostly cloudy with a chance of rain and snow. Highs 30 to 40. Chance of precipitation 40 percent. | |
| Lo: 23°F | ||
| Hi: 33°F | Thanksgiving day: Mostly cloudy with a 40 percent chance of snow. Highs 30 to 35. Lows 20 to 25. | |
| Lo: 23°F |
Moon, Sunrise and Sunset
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Moon Phase: Waning Crescent Moon | Civil Twilight: 7:05 AM MST |
Sunrise: 7:37 AM MST |
| Sunset: 4:54 PM MST |
Civil Twilight: 5:27 PM MST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 34.4 | 40.4 | 48.1 | 57.3 | 66.3 | 75.2 | 83.5 | 82.3 | 72.2 | 60.2 | 42.9 | 34.2 | 58.1 |
| Mean °F | 24.0 | 28.7 | 35.6 | 43.3 | 51.6 | 59.3 | 65.5 | 64.2 | 55.5 | 45.7 | 32.1 | 24.1 | 44.1 |
| Min °F | 13.5 | 16.9 | 23.0 | 29.2 | 36.8 | 43.4 | 47.4 | 46.0 | 38.8 | 31.2 | 21.2 | 14.0 | 30.1 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 0.37 | 0.25 | 0.66 | 1.22 | 2.25 | 1.87 | 1.19 | 1.18 | 1.07 | 0.85 | 0.39 | 0.35 | 11.65 |

