Weather forecast for 10 daysFairfield, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 81°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphWSW 237°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:26 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, sun-filled conditions are also expected to persist.
The day's temperature range will span from a high of a temperate 80.6°F to a minimum of a fresh 50°F.
The maximum heat index, which combines air temperature and relative humidity, is appraised at 82.4°F.
Tomorrow's top temperature will be a few degrees higher than October's standard maximum of 75.6°F.
Sunrise will be at 7:20 am and sunset at 6:26 pm; tomorrow's daylight will last for 11h and 6min.

10-day overview

Daily temperatures

Warmest day: tomorrow 81°C.
Minimum temperature: 70°C.

Chance of precipitation

Highest chance: Wednesday 38%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 52°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphWSW 238°
  • Humidity: 64%
  • UV index: 0
  • Sunrise: 7:19 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 81°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphWSW 237°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:26 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 14mphWSW 240°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:21 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0.08"
  • Wind: 6mphSSW 206°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:22 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 54°F
AM Showers
AM Showers
  • Precip. probability: 38%
  • Precipitation: 0.08"
  • Wind: 6mphSW 230°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphSW 230°
  • Humidity: 71%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 48°F
Sunny
Sunny
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 8mphWSW 247°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 73°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphSW 231°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphWSW 239°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 9mphW 278°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:28 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
For the next ten days, a combination of overcast, sun-filled and rain-filled weather is forecasted.
With a 38% probability, rainfall is anticipated only on Wednesday. Expected precipitation will be minimal at 0.08".
In the coming days, the maximum temperature will range between 69.8°F and 80.6°F, while the lowest temperature will be between 46.4°F and 53.6°F.
Expect the warmest day on Sunday, with temperatures peaking at 80.6°F; the coldest days will be Monday, Wednesday and Thursday, with a maximum of 69.8°F.
Updated: Oct 18, 2026 @ 04:30:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

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

Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 50°F. The maximum heat index, which modifies the air temperature to account for humidity, is appraised at 82.4°F.
Tomorrow, the maximum temperature will be a couple of degrees higher than the average highest temperature in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Fairfield, sunrise will be at 7:20 am and sunset at 6:26 pm (PDT).

In Fairfield, California, tomorrow, there will be 11h and 6min of daylight.