Dillon August Weather

Averages and records for weather in Dillon, Montana in the month of August.
Typical Dillon August Weather
1991–2020
Average daily high 82.2 °F
Average daily low 47.8 °F
Average monthly precipitation 0.8 inches
Daily chance of precipitation 20.9%
Dillon August Weather Records
1895–2024
Highest temperature 101 °F August 5, 1961
Lowest temperature 25 °F August 25, 1910
Highest daily low 68 °F August 1, 1901
Lowest daily high 50 °F August 18, 2021
Hottest average high temperature 87.7 °F 1971
Coldest average high temperature 75.7 °F 1980
Most daily precipitation 1.3 inches August 26, 1905
Most monthly precipitation 3.9 inches 1912
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
August 1 84.2 49.4 94 34
August 2 84.1 49.3 98 33
August 3 83.9 49.2 97 32
August 4 83.8 49.0 98 35
August 5 83.7 48.9 101 32
August 6 83.6 48.8 97 36
August 7 83.5 48.7 98 32
August 8 83.3 48.6 94 33
August 9 83.2 48.5 95 34
August 10 83.1 48.4 96 32
August 11 83.0 48.3 97 30
August 12 82.9 48.2 100 30
August 13 82.8 48.1 96 34
August 14 82.6 48.0 95 32
August 15 82.5 47.9 94 32
August 16 82.3 47.8 94 34
August 17 82.0 47.7 95 29
August 18 81.9 47.5 94 31
August 19 81.7 47.4 96 29
August 20 81.5 47.2 94 26
August 21 81.3 47.0 95 33
August 22 81.0 46.9 93 30
August 23 80.8 46.7 95 30
August 24 80.5 46.6 97 32
August 25 80.2 46.3 93 25
August 26 79.8 46.1 95 31
August 27 79.5 45.8 92 30
August 28 79.2 45.6 95 32
August 29 78.8 45.3 92 31
August 30 78.4 45.1 93 30
August 31 78.1 44.9 96 30
Weather Station Details
Years Station Coordinates
1941–2024 Dillon Airport location
1895–1940 University of Montana Western location