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.

Tuesday
21st Apr
15

9

2

3
Wednesday
22nd Apr
18

8

8

5
Thursday
23rd Apr
21

6

12

6
Friday
24th Apr
21

9

12

7
Saturday
25th Apr
18

10

8

5

5-day weather forecast updated at 04:01 on Tuesday 21st April 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 Tuesday 21st April 2026

Expect isolated thunderstorms in Napa, California with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 100% chance of some rain and a gentle breeze of 17 kph from the south-west.

15
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
3
UV index (Moderate)
100
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
17
kph wind from SW

Napa weather for Wednesday 22nd April 2026

Expect scattered clouds in Napa, California with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

18
°C maximum temperature
8
°C minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
12
kph wind from W

Napa weather for Thursday 23rd April 2026

Expect clear skies in Napa, California with a maximum temperature of 21°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

21
°C maximum temperature
6
°C minimum temperature
clear skies
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
21
°C wind chill
14
kph wind from W

Napa weather for Friday 24th April 2026

Expect scattered clouds in Napa, California with a maximum temperature of 21°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

21
°C maximum temperature
9
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Napa weather for Saturday 25th April 2026

Expect broken clouds in Napa, California with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.