Napa County Regional Park District - Lake Hennessey City Recreation Area Weather Forecast
- 52
- 79
Mostly Sunny
- 50
- 81
Mostly Sunny
- 48
- 80
Partly Sunny
- 53
- 79
Partly Sunny
- 50
- 81
Partly Sunny
- 49
- 79
Partly Sunny
- 49
- 80
Partly Sunny
Today 23 Mar North Bay Interior Valleys
Sunny. Highs in the upper 60s to lower 80s. West Winds 5 to 15 Mph.
Tonight 23 Mar North Bay Interior Valleys
Mostly clear. Lows in the mid 40s to upper 50s. West Winds 5 to 15 Mph.
Napa County Regional Park District - Lake Hennessey City Recreation Area Temperature Statistics
March Temperature
Napa, Napa County Airport (19.9 miles)
Lowest 5 March, 2026
37.7 °FAverage March
60.5 °FHighest 20 March, 2026
87.7 °F
Climate (2021–Present)
Napa, Napa County Airport (19.9 miles)
Average Low 2021–2026
47.2 °FAverage 2021–2026
58.3 °FAverage High 2021–2026
70.2 °F