Napa weather live forecast

Today's maximum temperature in Napa is expected to be 19°C. Select a day from the live weather forecast for Napa, California, USA for more weather parameters.

Monday
19th Jan
19

4

5

2
Tuesday
20th Jan
18

4

5

3
Wednesday
21st Jan
18

4

5

2
Thursday
22nd Jan
15

5

1

2

5-day weather forecast updated at 04:03 on Saturday 17th January 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 Monday 19th January 2026

Expect fog in low lying areas in Napa, California with a maximum temperature of 19°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

19
°C maximum temperature
4
°C minimum temperature
fog in low lying areas
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
19
°C wind chill
13
kph wind from NE

Napa weather for Tuesday 20th January 2026

Expect fog in low lying areas in Napa, California with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

18
°C maximum temperature
4
°C minimum temperature
fog in low lying areas
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from NE

Napa weather for Wednesday 21st January 2026

Expect fog in low lying areas in Napa, California with a maximum temperature of 18°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.

18
°C maximum temperature
4
°C minimum temperature
fog in low lying areas
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
18
°C wind chill
12
kph wind from NE

Napa weather for Thursday 22nd January 2026

Expect fog in low lying areas in Napa, California with a maximum temperature of 15°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.