Weather forecast for 10 daysVallecito, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 196°
  • Humidity: 22%
  • UV index: 5
  • Sunrise: 7:13 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
Tomorrow, in Vallecito, sunshine is also expected with little to no cloud cover.
Temperature readings will span from a daytime high of a blazing 86°F to a night low of a brisk 48.2°F.
Tomorrow, expect conditions that are hotter than normal, with a temperature that reflects September's typical maximum of 85.3°F.
Sunrise will be at 7:13 am and sunset at 6:20 pm; tomorrow's daylight will last for 11h and 7min.

10-day overview

Daily temperatures

Warmest day: tomorrow 86°C.
Coldest day: Thursday 63°C.

Chance of precipitation

Highest chance: Thursday 57%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 55°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphENE 60°
  • Humidity: 37%
  • UV index: 0
  • Sunrise: 7:12 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 196°
  • Humidity: 22%
  • UV index: 5
  • Sunrise: 7:13 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 220°
  • Humidity: 36%
  • UV index: 5
  • Sunrise: 7:14 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0.04"
  • Wind: 6mphSSW 197°
  • Humidity: 38%
  • UV index: 3
  • Sunrise: 7:15 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 48°F
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 0.31"
  • Wind: 4mphS 178°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:16 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 46°F
Showers
Showers
  • Precip. probability: 57%
  • Precipitation: 0.28"
  • Wind: 6mphSSW 206°
  • Humidity: 73%
  • UV index: 4
  • Sunrise: 7:17 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 66°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphSW 236°
  • Humidity: 69%
  • UV index: 4
  • Sunrise: 7:18 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphS 179°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:19 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 6mphS 184°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:20 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphSSW 195°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:21 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
For the next ten days, a combination of cloud-filled, bright and damp weather is predicted.
Rainfall is predicted for Wednesday, Thursday and next Sunday.
Temperature fluctuation will be noticeable in the upcoming period. Maximum temperatures are forecasted between 62.6°F and 86°F, while the lowest nightly temperature differences will be also quite pronounced, as the overnight lows will vary from 42.8°F to 55.4°F.
With the highest temperature of 86°F, Sunday will be the hottest day; Thursday will be the coldest day, with the highest temperature of 62.6°F.
Updated: Oct 18, 2026 @ 04:48:54 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Vallecito, bright and sunny weather is expected.

Tomorrow, the highest temperature in Vallecito, California, will be 86°F, while the lowest temperature will be 48.2°F.
The maximum temperature tomorrow will be uncommonly higher than the average highest temperature of 73.8°F in October. The lowest temperature will be in line with the average low of 51.8°F.

On Sunday, in Vallecito, sunrise will be at 7:13 am and sunset at 6:20 pm (PDT).

In Vallecito, tomorrow, there will be 11h and 7min of daylight.