Harlowton, MT Weather
Harlowton, 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 83.40 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 11.60 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 24 degrees Fahrenheit.
The annual average precipitation at Harlowton is 14.08 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 2.71 Inches.
Weather Data
Current Conditions
|
|
Fair, 26°F | Humidity: 69% | Dewpoint: 17°F |
| Wind Speed: SW 11.5 MPH (10 KT) | Heat Index: 26°F | ||
| Barometer: 30.04 in. | Wind Chill: 15°F |
Weather Forecast
| Hi: 39°F | Today: Partly cloudy. Highs in the upper 30s. West winds 15 to 25 mph. | |
| Lo: 25°F | ||
| Hi: 41°F | Tuesday: Partly cloudy. Windy. Highs in the lower 40s. West winds 15 to 30 mph. Gusts up to 40 mph in the morning. | |
| Lo: 25°F | ||
| Hi: 49°F | Wednesday: Decreasing clouds. Highs in the upper 40s. West winds 10 to 20 mph. | |
| Lo: 29°F | ||
| Hi: 51°F | Thanksgiving day: Sunny. Highs in the lower 50s. | |
| Lo: 30°F | ||
| Hi: 49°F | Friday: Mostly cloudy with a 20 percent chance of rain showers. Highs in the upper 40s. | |
| Lo: 25°F | ||
| Hi: 39°F | Saturday: Mostly cloudy with a 20 percent chance of snow showers. Colder. Highs in the upper 30s. | |
| Lo: 21°F |
Moon, Sunrise and Sunset
![]() |
Moon Phase: First Quarter Moon | Civil Twilight: 6:57 AM MST |
Sunrise: 7:31 AM MST |
| Sunset: 4:39 PM MST |
Civil Twilight: 5:12 PM MST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 34.6 | 40.2 | 47.5 | 57.3 | 66.7 | 75.9 | 83.4 | 83.2 | 72.5 | 60.6 | 43.3 | 35.7 | 58.4 |
| Mean °F | 23.1 | 27.6 | 34.1 | 42.9 | 51.7 | 60.2 | 65.8 | 65.2 | 55.4 | 45.3 | 31.8 | 24.7 | 44.0 |
| Min °F | 11.6 | 15.0 | 20.7 | 28.4 | 36.7 | 44.4 | 48.2 | 47.1 | 38.3 | 30.0 | 20.3 | 13.7 | 29.5 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 0.45 | 0.39 | 0.73 | 1.30 | 2.22 | 2.71 | 1.74 | 1.61 | 1.15 | 0.77 | 0.52 | 0.49 | 14.08 |

