Weather forecast for 10 daysYountville, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 81°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSW 198°
  • Humidity: 39%
  • UV index: 5
  • Sunrise: 7:21 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
Today, on Sunday, October 18, sunshine is expected with little to no cloud cover.
Temperature fluctuations will be substantial, ranging from a peak of a moderately hot 80.6°F to a low of a brisk 46.4°F.
Today, expect conditions that are warmer than normal, with a temperature that reflects September's typical maximum of 84°F.
Sunrise was at 7:21 am and sunset will be at 6:27 pm; the daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: today 81°C.
Minimum temperature: 68°C.

Chance of precipitation

Highest chance: Wednesday 59%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 81°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSW 198°
  • Humidity: 39%
  • UV index: 5
  • Sunrise: 7:21 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 9mphWSW 238°
  • Humidity: 62%
  • UV index: 5
  • Sunrise: 7:22 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 50°F
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0.12"
  • Wind: 4mphE 89°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 50°F
AM Showers
AM Showers
  • Precip. probability: 59%
  • Precipitation: 0.16"
  • Wind: 5mphSW 216°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:24 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 7mphWSW 238°
  • Humidity: 79%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphWNW 303°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0.04"
  • Wind: 6mphS 170°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSW 198°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:28 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphSW 219°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:29 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 73°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 6mphSSW 205°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:30 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
Looking ahead, conditions suggest a period of primarily dull and occasionally clear and wet weather is expected.
Rainfall is predicted for Tuesday, Wednesday and Saturday.
Temperature differences will be noticeable in the upcoming days. Maximum temperatures are forecasted between 68°F and 80.6°F, while the minimum temperature is forecast to range between 42.8°F and 50°F.
The warmest day is today, with a maximum temperature of 80.6°F; Monday, Wednesday and Thursday, with the highest temperature of 68°F, will be the coldest days in Yountville.
Updated: Oct 18, 2026 @ 17:29:57 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, uninterrupted sunshine is anticipated.

Today, the maximum temperature will be 80.6°F, while the minimum temperature will be 46.4°F.
The highest temperature today will be a couple of degrees higher than the average maximum temperature in October. The lowest temperature will be also slightly cooler than the average low of 51.8°F.

On Sunday, in Yountville, sunrise was at 7:21 am and sunset will be at 6:27 pm (PDT).

Today, the daylight will last for 11h and 5min.