Duncan Airport Weather Forecast
- 54
- 83
Mostly Sunny
- 53
- 82
Mostly Sunny
- 53
- 81
Mostly Sunny
- 55
- 82
Chance Rain Showers
- 54
- 82
Chance Thunderstorms
- 55
- 84
Mostly Sunny
Today 6 Jun Upper Blackfoot and MacDonald Pass
Sunny. Highs 70 to 75. West Winds 5 to 15 Mph.
Tonight 6 Jun Upper Blackfoot and MacDonald Pass
Mostly clear. Lows 45 to 50. West Winds up to 10 Mph.
Duncan Airport Temperature Statistics
June Temperature
Helena Regional Airport (8.7 miles)
Lowest 1 June, 2024
41.6 °FAverage June
59.8 °FHighest 1 June, 2024
77.6 °F
Climate (2019–Present)
Helena Regional Airport (8.7 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
35.9 °FAverage 2019–2024
46.9 °FAverage High 2019–2024
58.4 °F