Weather forecast for 10 daysCharter Oak, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 88°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 200°
  • Humidity: 26%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
On Sunday, October 18, sun-filled conditions are expected to persist.
Temperature span will be from a high of a tropical 87.8°F to a low of a comfortable 64.4°F.
Expect a hotter feel as the forecasted high matches September's 86.7°F, rather than October's average of 78.3°F.
Sunrise will be at 6:59 am and sunset at 6:13 pm; the daylight will last for 11h and 14min.

10-day overview

Daily temperatures

Warmest day: today 88°C.
Coldest day: Thursday 68°C.

Chance of precipitation

Highest chance: Wednesday 81%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 88°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 200°
  • Humidity: 26%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 86°F
  • 63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 204°
  • Humidity: 32%
  • UV index: 6
  • Sunrise: 7:00 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphS 187°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 7:00 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 77°F
  • 59°F
Rain
Rain
  • Precip. probability: 81%
  • Precipitation: 0.59"
  • Wind: 9mphS 176°
  • Humidity: 61%
  • UV index: 5
  • Sunrise: 7:01 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 55°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 55%
  • Precipitation: 0.16"
  • Wind: 6mphSSW 206°
  • Humidity: 71%
  • UV index: 5
  • Sunrise: 7:02 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSW 218°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:03 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 81°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 217°
  • Humidity: 39%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSW 201°
  • Humidity: 41%
  • UV index: 5
  • Sunrise: 7:05 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 7mphSSW 201°
  • Humidity: 48%
  • UV index: 5
  • Sunrise: 7:06 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 73°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphS 187°
  • Humidity: 48%
  • UV index: 5
  • Sunrise: 7:06 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
And a mix of dry and sunny, overcast, showery and stormy weather is predicted.
Rainfall is forecasted for Wednesday and Thursday.
Substantial differences in temperature are forecasted throughout the forecast window. The maximum temperature will vary between 68°F and 87.8°F, while the lowest temperature will be between 55.4°F and 64.4°F.
The hottest day is today, with a maximum temperature of 87.8°F; the coldest day will be Thursday, with a maximum of 68°F.
Updated: Oct 18, 2026 @ 12:20:24 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunshine is expected with little to no cloud cover.

Today, the maximum temperature will be 87.8°F, while the minimum temperature will be 64.4°F.
The highest temperature will be noticeably higher than the average maximum of 78.3°F in October. The lowest temperature today will be slightly warmer than the average low temperature.

On Sunday, in Charter Oak, sunrise will be at 6:59 am and sunset at 6:13 pm (PDT).

Today, the daylight will last for 11h and 14min.