Napa weather live forecast

Tomorrow's maximum temperature in Napa is expected to be 14°C.

  • Sunday
    16th Mar
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Monday
    17th Mar
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Tuesday
    18th Mar
    Scattered clouds
  • Wednesday
    19th Mar
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Thursday
    20th Mar
    Mostly cloudy with light rain (2-5 mm of rainfall expected)

5-day weather forecast updated at 04:01 on Sunday 16th March 2025 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 Sunday 16th March 2025

Expect mostly cloudy with rain in Napa, California with a maximum temperature of 14°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 27 kph from the south.

  • 14°C maximum temperature14
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 100% chance of some rain100
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the South27
    kph wind from S

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Napa weather for Monday 17th March 2025

Expect mostly cloudy with rain in Napa, California with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a moderate breeze of 25 kph from the west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 68% chance of some rain68
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 25 kph from the West25
    kph wind from W

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Napa weather for Tuesday 18th March 2025

Expect scattered clouds in Napa, California with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 14 kph from the West14
    kph wind from W

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Napa weather for Wednesday 19th March 2025

Expect mostly cloudy with light rain in Napa, California with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a gentle breeze of 18 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 51% chance of some rain51
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

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Napa weather for Thursday 20th March 2025

Expect mostly cloudy with light rain in Napa, California with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 19 kph from the west.

  • 17°C maximum temperature17
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 16% chance of some rain16
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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Metric (°C / mm)  |  Imperial (°F / inches)

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