Rat Lake Weather Forecast
- 23
- 41
Increasing Clouds
- 22
- 46
Mostly Sunny
- 28
- 44
Partly Sunny
- 30
- 42
Rain/Snow
- 20
- 39
Snow Likely
- 27
- 36
Snow Likely
- 25
- 39
Rain/Snow
Today 13 Dec Blackfoot Mountains
Sunny. Highs 42 to 49.
Tonight 13 Dec Blackfoot Mountains
Mostly cloudy. Lows 24 to 34.
Rat Lake Temperature Statistics
December Temperature
Idaho Falls Regional Airport (33.6 miles)
Lowest 3 December, 2025
9 °FAverage December
35.2 °FHighest 11 December, 2025
54 °F
Climate (2020–Present)
Idaho Falls Regional Airport (33.6 miles)
Average Low 2020–2025
33.4 °FAverage 2020–2025
46.3 °FAverage High 2020–2025
59.1 °F