Pierce Reservoir Weather Forecast
- 42
- 67
Mostly Sunny
- 48
- 74
Partly Sunny
- 49
- 73
Partly Sunny
- 47
- 71
Slight Chance Thunderstorms
- 41
- 68
Chance Rain Showers
- 42
- 71
Mostly Sunny
Today 18 Sep North Snowy Range Foothills
Sunny, warmer with Highs in the mid 60s. West Winds 5 to 10 Mph.
Tonight 18 Sep North Snowy Range Foothills
Mostly clear. Lows in the lower 40s. Southwest Winds 5 to 10 Mph.
Pierce Reservoir Temperature Statistics
September Temperature
Elk Mountain AWOS (19.3 miles)
Lowest 5 September, 2025
35.6 °FAverage September
60.5 °FHighest 10 September, 2025
82.4 °F
Climate (2020–Present)
Elk Mountain AWOS (19.3 miles)
Average Low 2020–2025
33.9 °FAverage 2020–2025
44.5 °FAverage High 2020–2025
54.8 °F