Rector Reservoir Weather Forecast
- 52
- 85
Mostly Sunny
- 54
- 88
Sunny
- 48
- 81
Mostly Sunny
- 50
- 78
Mostly Sunny
- 50
- 84
Mostly Sunny
- 51
- 83
Mostly Sunny
Today 20 May North Bay Interior Valleys
Sunny. Highs in the upper 60s to mid 80s. West Winds 10 to 20 Mph.
Tonight 20 May North Bay Interior Valleys
Mostly clear. Lows in the 40s to mid 50s. West Winds 10 to 20 Mph.
Rector Reservoir Temperature Statistics
May Temperature
Napa, Napa County Airport (16.2 miles)
Lowest 4 May, 2025
42.7 °FAverage May
60.7 °FHighest 9 May, 2025
87.7 °F
Climate (2020–Present)
Napa, Napa County Airport (16.2 miles)
Average Low 2020–2025
47 °FAverage 2020–2025
58.2 °FAverage High 2020–2025
70.7 °F