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.

Monday
20th Jul
25

16

5

11
Tuesday
21st Jul
30

16

6

9
Wednesday
22nd Jul
28

17

14

11
Thursday
23rd Jul
27

17

12

11
Friday
24th Jul
27

15

12

11

5-day weather forecast updated at 04:01 on Monday 20th July 2026 GMT

More about Napa

Napa by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for California

TUI: Top deals & discounts on 2026/2027 holidays

Sale

Explore latest special offers & online deals from TUI
Free child places & £0 deposits with direct debit available
Book summer & winter sun holidays in 2026/2027

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

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 Monday 20th July 2026

Expect broken clouds in Napa, California with a maximum temperature of 25°C, maximum UV of 11 (Extreme) and 5 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
16
°C minimum temperature
broken clouds
5
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
25
°C wind chill
22
kph wind from SW

Napa weather for Tuesday 21st July 2026

Expect broken clouds in Napa, California with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

30
°C maximum temperature
16
°C minimum temperature
broken clouds
6
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from SW

Napa weather for Wednesday 22nd July 2026

Expect scattered clouds in Napa, California with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

28
°C maximum temperature
17
°C minimum temperature
scattered clouds
14
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
26
kph wind from SW

Napa weather for Thursday 23rd 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 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.