Haystack Mountain Weather Forecast
- 44
- 67
Rain Showers
- 42
- 62
Rain Showers Likely
- 44
- 66
Slight Chance Thunderstorms
- 47
- 73
Mostly Sunny
- 47
- 74
Mostly Sunny
- 45
- 73
Slight Chance Thunderstorms
- 46
- 74
Slight Chance Thunderstorms
Today 21 Jul Elkhorn and Boulder Mountains
Mostly cloudy. Rain Showers likely and chance of Thunderstorms in the afternoon. Highs 65 to 75. Northeast Winds 5 to 15 Mph. Chance of precipitation 70 percent.
Tonight 21 Jul Elkhorn and Boulder Mountains
Cooler. Mostly cloudy. Rain Showers likely and chance of Thunderstorms in the Evening, then slight chance of Thunderstorms after midnight. Lows 45 to 55. Northwest Winds 5 to 15 Mph shifting to the west after midnight. Chance of precipitation 70 percent.
Haystack Mountain Temperature Statistics
July Temperature
Butte, Bert Mooney Airport (14.9 miles)
Lowest 6 July, 2025
40.6 °FAverage July
65.6 °FHighest 1 July, 2025
89.7 °F
Climate (2020–Present)
Butte, Bert Mooney Airport (14.9 miles)
Average Low 2020–2025
27.7 °FAverage 2020–2025
41.6 °FAverage High 2020–2025
55 °F