Napa weather live forecast

Today's maximum temperature in Napa is expected to be 22°C. Select a day from the live weather forecast for Napa, California, USA for more weather parameters.

Saturday
15th Aug
22

14

8

8
Sunday
16th Aug
24

13

11

7
Monday
17th Aug
23

13

8

8
Tuesday
18th Aug
25

14

10

9
Wednesday
19th Aug
25

14

9

8

5-day weather forecast updated at 04:01 on Saturday 15th August 2026 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 Saturday 15th August 2026

Expect broken clouds in Napa, California with a maximum temperature of 22°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

22
°C maximum temperature
14
°C minimum temperature
broken clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
22
°C wind chill
22
kph wind from SW

Napa weather for Sunday 16th August 2026

Expect broken clouds in Napa, California with a maximum temperature of 24°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

24
°C maximum temperature
13
°C minimum temperature
broken clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from SW

Napa weather for Monday 17th August 2026

Expect broken clouds in Napa, California with a maximum temperature of 23°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-west.

23
°C maximum temperature
13
°C minimum temperature
broken clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
23
°C wind chill
24
kph wind from SW

Napa weather for Tuesday 18th August 2026

Expect broken clouds in Napa, California with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

25
°C maximum temperature
14
°C minimum temperature
broken clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
25
°C wind chill
20
kph wind from SW

Napa weather for Wednesday 19th August 2026

Expect broken clouds in Napa, California with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.