Harrison Lake Weather Forecast
- 43
- 60
Becoming Sunny
- 47
- 66
Mostly Sunny
- 46
- 69
Chance Rain Showers
- 38
- 61
Chance Thunderstorms
- 30
- 46
Snow Showers Likely
- 30
- 39
Snow Showers Likely
- 35
- 49
Chance Snow Showers
Today 17 Jun Northwest Beaverhead County
Sunny. Highs 65 to 70. Northwest Winds up to 10 Mph.
Tonight 17 Jun Northwest Beaverhead County
Mostly clear. Lows 40 to 45. West Winds up to 10 Mph.
Harrison Lake Temperature Statistics
June Temperature
Dillon, Dillon Airport (31.7 miles)
Lowest 3 June, 2025
33.7 °FAverage June
59.3 °FHighest 9 June, 2025
85.6 °F
Climate (2020–Present)
Dillon, Dillon Airport (31.7 miles)
Average Low 2020–2025
30.6 °FAverage 2020–2025
42.8 °FAverage High 2020–2025
55.7 °F