Napa Weather Forecast
- 49
- 56
Rain Showers
- 47
- 53
Rain Showers
- 41
- 52
Rain Showers
- 37
- 51
Partly Sunny
- 35
- 51
Mostly Sunny
- 36
- 53
Mostly Sunny
- 38
- 54
Partly Sunny
Today 24 Dec North Bay Interior Valleys
Mostly cloudy. Patchy fog late in the morning. A slight chance of Showers late in the Morning, then a chance of Showers and a slight chance of Thunderstorms in the afternoon. Some Thunderstorms may be severe with heavy rainfall. Highs in the 50s. South Winds 5 to 10 Mph. Becoming southeast 10 to 20 Mph with Gusts to around 35 Mph in the afternoon.
Tonight 24 Dec North Bay Interior Valleys
Breezy. Showers and a slight chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Lows in the mid 40s to lower 50s. Southeast Winds 20 to 30 Mph. Gusts up to 45 Mph increasing to 60 Mph after midnight.
Napa Temperature Statistics
December Temperature
Napa, Napa County Airport (6.2 miles)
Lowest 2 December, 2025
37 °FAverage December
47.7 °FHighest 3 December, 2025
66 °F
Climate (2020–Present)
Napa, Napa County Airport (6.2 miles)
Average Low 2020–2025
47.1 °FAverage 2020–2025
58.1 °FAverage High 2020–2025
70.1 °F