McCarthy Park Weather Forecast
- 63
- 89
Patchy Smoke
- 63
- 91
Rain Showers Likely
- 63
- 92
Slight Chance Thunderstorms
- 64
- 98
Hot
- 64
- 98
Hot
- 62
- 96
Hot
Today 21 Jul Canyon Ferry Area
Mostly sunny until late afternoon then becoming mostly cloudy. Patchy smoke. Highs in the mid 80s. North Winds up to 5 Mph.
Tonight 21 Jul Canyon Ferry Area
Mostly cloudy in the evening then becoming partly cloudy. Patchy smoke through the night. Lows in the lower 60s. East Winds up to 5 Mph.
McCarthy Park Temperature Statistics
July Temperature
Helena Regional Airport (29.8 miles)
Lowest 2 July, 2026
47.6 °FAverage July
72 °FHighest 11 July, 2026
101.6 °F
Climate (2021–2026)
Helena Regional Airport (29.8 miles)
Average Low 2021–2026
36.4 °FAverage 2021–2026
47.9 °FAverage High 2021–2026
59.9 °F