Napa weather live forecast

Today's maximum temperature in Napa is expected to be 25°C. Select a day from the live weather forecast for Napa, California, USA for more weather parameters.

Saturday
18th Jul
25

13

11

9
Sunday
19th Jul
26

14

10

10
Monday
20th Jul
26

15

7

10
Tuesday
21st Jul
27

15

10

11
Wednesday
22nd Jul
27

16

13

10

5-day weather forecast updated at 04:01 on Saturday 18th July 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 18th July 2026

Expect scattered clouds in Napa, California with a maximum temperature of 25°C, maximum UV of 9 (Very 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.

25
°C maximum temperature
13
°C minimum temperature
scattered clouds
11
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
25
°C wind chill
22
kph wind from SW

Napa weather for Sunday 19th July 2026

Expect broken clouds in Napa, California with a maximum temperature of 26°C, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.

26
°C maximum temperature
14
°C minimum temperature
broken clouds
10
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
26
°C wind chill
21
kph wind from SW

Napa weather for Monday 20th July 2026

Expect broken clouds in Napa, California with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-west.

26
°C maximum temperature
15
°C minimum temperature
broken clouds
7
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from SW

Napa weather for Tuesday 21st July 2026

Expect scattered clouds in Napa, California with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.

27
°C maximum temperature
15
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
21
kph wind from SW

Napa weather for Wednesday 22nd July 2026

Expect scattered clouds in Napa, California with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south-west.