Chesterfield Reservoir Weather Forecast
- 25
- 50
Mostly Sunny
- 31
- 47
Partly Sunny
- 34
- 45
Rain
- 21
- 43
Rain Likely
- 31
- 38
Rain/Snow
- 27
- 44
Rain/Snow
Today 14 Dec Blackfoot Mountains
Sunny. Highs 45 to 52.
Tonight 14 Dec Blackfoot Mountains
Mostly clear. Lows 22 to 32.
Chesterfield Reservoir Temperature Statistics
December Temperature
Pocatello, Pocatello Regional Airport (30.4 miles)
Lowest 3 December, 2025
19 °FAverage December
39.8 °FHighest 10 December, 2025
57 °F
Climate (2020–Present)
Pocatello, Pocatello Regional Airport (30.4 miles)
Average Low 2020–2025
35.1 °FAverage 2020–2025
48.5 °FAverage High 2020–2025
61.3 °F