Lake Agnes Weather Forecast
- 58
- 70
Chance Rain Showers
- 56
- 69
Rain Showers Likely
- 58
- 71
Chance Thunderstorms
- 59
- 77
Mostly Sunny
- 58
- 78
Mostly Sunny
- 57
- 76
Mostly Sunny
Today 21 Jul Northwest Beaverhead County
Partly sunny. Patchy smoke through the day. Slight chance of rain Showers late in the morning. Chance of rain Showers and slight chance of Thunderstorms early in the Afternoon, then chance of Thunderstorms late in the afternoon. Highs 73 to 83. Southeast Winds up to 5 Mph shifting to the west in the afternoon. Chance of precipitation 50 percent.
Tonight 21 Jul Northwest Beaverhead County
Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of Thunderstorms. Lows 51 to 59. Northwest Winds up to 10 Mph shifting to the southwest after midnight.
Lake Agnes Temperature Statistics
July Temperature
Dillon, Dillon Airport (22.4 miles)
Lowest 1 July, 2026
44.7 °FAverage July
68.7 °FHighest 12 July, 2026
98.1 °F
Climate (2021–2026)
Dillon, Dillon Airport (22.4 miles)
Average Low 2021–2026
31.5 °FAverage 2021–2026
43.9 °FAverage High 2021–2026
56.9 °F