Big Reservoir Weather Forecast
- 39
- 48
Rain Showers
- 42
- 56
Chance Rain Showers
- 48
- 65
Mostly Sunny
- 53
- 70
Partly Sunny
- 53
- 72
Partly Sunny
- 47
- 64
Slight Chance Rain Showers
- 50
- 66
Mostly Sunny
Today 12 May West Slope Northern Sierra Nevada
Mostly sunny in the morning then becoming mostly cloudy. Cooler. At lower Elevations, a chance of rain Showers early in the morning. Rain Showers likely in the late morning and afternoon. A slight chance of Thunderstorms in the afternoon. At higher Elevations, a chance of snow Showers in the late morning and early afternoon. A chance of rain Showers in the late morning and afternoon. A slight chance of Thunderstorms in the afternoon. Snow Showers likely late in the afternoon. Highs 34 to 49 higher Elevations. 42 to 57 lower Elevations. No snow accumulation lower Elevations. Up to 3 Inches higher Elevations. Snow level 6500 feet. Prevailing southwest Winds 5 to 15 Mph with Gusts to around 50 Mph. Except southwest 10 to 35 Mph with Gusts to around 55 Mph over Ridges.
Tonight 12 May West Slope Northern Sierra Nevada
Mostly cloudy. At higher Elevations, a chance of rain Showers and a slight chance of Thunderstorms early in the evening. A chance of snow Showers in the evening. A slight chance of rain Showers late in the evening. A slight chance of snow Showers after midnight. At lower Elevations, a chance of rain Showers and a slight chance of Thunderstorms in the Evening, then a chance of rain Showers after midnight. Colder. Lows 22 to 37 higher Elevations. 35 to 43 lower Elevations. No snow accumulation lower Elevations. Up to 2 Inches higher Elevations. Snow level 6000 feet. Prevailing southwest Winds up to 10 Mph. Gusts up to 35 Mph decreasing to 20 Mph after midnight. Over Ridges. Prevailing southwest Winds 15 to 25 Mph decreasing to 5 to 15 Mph after midnight.
Big Reservoir Temperature Statistics
May Temperature
Emigrant Gap, Blue Canyon Nyack Airport (9.3 miles)
Lowest 3 May, 2025
45.6 °FAverage May
58.4 °FHighest 10 May, 2025
75 °F
Climate (2020–Present)
Emigrant Gap, Blue Canyon Nyack Airport (9.3 miles)
Average Low 2020–2025
46.8 °FAverage 2020–2025
53.4 °FAverage High 2020–2025
60.5 °F