Weather forecast for 10 daysThermalito, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSE 167°
  • Humidity: 33%
  • UV index: 4
  • Sunrise: 7:19 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Tomorrow, in Thermalito, clear and sunny conditions are also expected.
A notable disparity in temperature is forecasted, reaching up to a maximum of a humid 86°F and falling to a minimum of a crisp 51.8°F.
Expect a hotter feel as the forecasted high matches September's 88.9°F, rather than October's average of 76.1°F.
Sunrise will be at 7:19 am and sunset at 6:23 pm; tomorrow's daylight will last for 11h and 3min.

10-day overview

Daily temperatures

Warmest day: tomorrow 86°C.
Coldest day: Thursday 66°C.

Chance of precipitation

Highest chance: Thursday 45%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 52°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNE 54°
  • Humidity: 40%
  • UV index: 0
  • Sunrise: 7:18 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSE 167°
  • Humidity: 33%
  • UV index: 4
  • Sunrise: 7:19 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 174°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:20 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSW 234°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 54°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 7mphS 190°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 52°F
AM Showers
AM Showers
  • Precip. probability: 45%
  • Precipitation: 0.08"
  • Wind: 7mphS 177°
  • Humidity: 79%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 6mphSW 225°
  • Humidity: 69%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphS 187°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSW 198°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 70°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 6mphSW 218°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:28 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
Models point to a combination of gloomy, clear and showery weather is predicted.
Rainfall is forecasted for Wednesday and Thursday.
Temperature fluctuation will be noticeable in the upcoming days. Highs will range from 66.2°F to 86°F, while nighttime temperatures are expected to vary from 44.6°F to 55.4°F.
The hottest day will be Sunday, with a maximum of 86°F; the coldest day will be Thursday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 04:47:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Thermalito, conditions will remain bright with clear skies.

Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 51.8°F.
The highest temperature tomorrow will be noticeably higher than the average maximum of 76.1°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Thermalito, sunrise will be at 7:19 am and sunset at 6:23 pm (PDT).

In Thermalito, the length of the day tomorrow will be 11h and 3min.