Napa weather live forecast

Today's maximum temperature in Napa is expected to be 15°C. Select a day from the live weather forecast for Napa, California, USA for more weather parameters.

Friday
19th Dec
15

12

0

0
Saturday
20th Dec
13

11

0

1
Sunday
21st Dec
14

11

0

0
Monday
22nd Dec
12

9

0

1
Tuesday
23rd Dec
11

9

0

0

5-day weather forecast updated at 04:01 on Saturday 20th December 2025 GMT

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The 5-day weather forecast for California (Napa) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Napa weather forecast by day

Below are the detailed weather forecasts for Napa for the next 5 days.

Napa weather for Friday 19th December 2025

Expect mostly cloudy with light rain in Napa, California with a maximum temperature of 15°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 99% chance of some rain and a moderate breeze of 26 kph from the south.

15
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
99
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
26
kph wind from S

Napa weather for Saturday 20th December 2025

Expect mostly cloudy with rain in Napa, California with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 98% chance of some rain and a gentle breeze of 19 kph from the south.

13
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
98
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
19
kph wind from S

Napa weather for Sunday 21st December 2025

Expect cloudy with some rain in Napa, California with a maximum temperature of 14°C and no hours of bright sunshine. There are 50 mm or more of rainfall expected with 100% chance of some rain and a fresh breeze of 29 kph from the south.

14
°C maximum temperature
11
°C minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
100
% chance of some rain
>50
mm or more of rainfall expected
14
°C wind chill
29
kph wind from S

Napa weather for Monday 22nd December 2025

Expect overcast with light rain in Napa, California with a maximum temperature of 12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 22 kph from the south-west.

12
°C maximum temperature
9
°C minimum temperature
overcast with light rain
0
hours of sunshine
1
UV index (Low)
98
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
22
kph wind from SW

Napa weather for Tuesday 23rd December 2025

Expect cloudy with some rain in Napa, California with a maximum temperature of 11°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a fresh breeze of 32 kph from the south-east.