Junction Reservoir Weather Forecast
- 39
- 44
Rain Showers
- 41
- 45
Rain Showers
- 40
- 45
Rain Showers
- 39
- 43
Rain Showers
- 34
- 45
Rain Showers
- 34
- 40
Rain/Snow
Today 19 Dec West Slope Northern Sierra Nevada
At lower Elevations, a slight chance of rain Showers early in the morning. A chance of rain Showers late in the Morning, then heavy rain Showers in the afternoon. At higher Elevations, a slight chance of rain Showers in the morning. A slight chance of snow Showers late in the Morning, then heavy rain Showers in the afternoon. Snow Showers late in the afternoon. Highs 37 to 52 higher Elevations. 45 to 60 lower Elevations. No snow accumulation lower Elevations. Up to 1 inch higher Elevations. Snow level above 8000 feet. Prevailing south Winds up to 15 Mph with Gusts to around 40 Mph. Except south up to 30 Mph with Gusts to around 45 Mph over Ridges.
Tonight 19 Dec West Slope Northern Sierra Nevada
At lower Elevations, rain Showers. At higher Elevations, rain Showers and heavy snow Showers in the Evening, then rain Showers after midnight. Lows 29 to 43 higher Elevations. 40 to 50 lower Elevations. Snow accumulation up to 1 inch. Prevailing south Winds up to 10 Mph with Gusts to around 35 Mph. Except southwest up to 25 Mph over Ridges.
Junction Reservoir Temperature Statistics
December Temperature
Placerville Airport (18 miles)
Lowest 1 December, 2025
32 °FAverage December
54.8 °FHighest 13 December, 2025
69.8 °F
Climate (2020–Present)
Placerville Airport (18 miles)
Average Low 2020–2025
52.3 °FAverage 2020–2025
60.5 °FAverage High 2020–2025
69.1 °F