Rockville Weather Forecast
- 43
- 58
Rain Showers
- 44
- 64
Mostly Sunny
- 44
- 65
Mostly Sunny
- 47
- 66
Partly Sunny
- 47
- 67
Sunny
- 46
- 73
Mostly Sunny
- 49
- 75
Mostly Sunny
Today 12 Apr Carquinez Strait and Delta
A slight chance of Thunderstorms early in the morning. A chance of rain Showers in the morning. A chance of Thunderstorms in the late morning and afternoon. Rain Showers early in the Afternoon, then a chance of rain Showers late in the afternoon. Highs 55 to 61. South Winds 10 to 20 Mph with Gusts to around 30 Mph.
Tonight 12 Apr Carquinez Strait and Delta
Mostly cloudy with a chance of rain Showers and a slight chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows around 44. Southwest Winds up to 15 Mph.
Rockville Temperature Statistics
April Temperature
Napa, Napa County Airport (8.7 miles)
Lowest 3 April, 2026
38.6 °FAverage April
59.4 °FHighest 5 April, 2026
83.6 °F
Climate (2021–Present)
Napa, Napa County Airport (8.7 miles)
Average Low 2021–2026
47.3 °FAverage 2021–2026
58.3 °FAverage High 2021–2026
70.3 °F