Weather forecast for 10 daysPosey, CA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 79°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNW 306°
  • Humidity: 22%
  • UV index: 3
  • Sunrise: 7:03 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
Today, in Posey, expect consistent sunshine and open skies.
A remarkable high of a moderately hot 78.8°F during the day and a stark low of a cool 51.8°F at night are expected.
The expected high of 78.8°F appears seasonally off, better matching September's typical values.
Sunrise was at 7:03 am and sunset will be at 6:16 pm; the daylight will last for 11h and 13min.

Sunday Oct 18, 2026

  • 77°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphWNW 293°
  • Humidity: 27%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
On Sunday, October 18, expect sunny weather with a crisp, clear sky.
Temperatures will oscillate between a moderately hot 77°F at their highest and a crisp 51.8°F at their lowest.
Tomorrow, expect a warmer trend, with a high of 77°F more common in September.
Sunrise will be at 7:04 am and sunset at 6:15 pm; tomorrow's daylight will last for 11h and 11min.

10-day overview

Daily temperatures

Warmest day: today 79°C.
Coldest day: Thursday 54°C.

Chance of precipitation

Highest chance: Thursday 75%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 79°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNW 306°
  • Humidity: 22%
  • UV index: 3
  • Sunrise: 7:03 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 77°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphWNW 293°
  • Humidity: 27%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 73°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 281°
  • Humidity: 30%
  • UV index: 5
  • Sunrise: 7:05 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphSW 220°
  • Humidity: 36%
  • UV index: 5
  • Sunrise: 7:06 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 45°F
Showers
Showers
  • Precip. probability: 62%
  • Precipitation: 0.35"
  • Wind: 7mphSW 231°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:06 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 54°F
  • 43°F
Thunderstorms
Thunderstorms
  • Precip. probability: 75%
  • Precipitation: 0.24"
  • Wind: 8mphW 273°
  • Humidity: 85%
  • UV index: 4
  • Sunrise: 7:07 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 9mphWNW 293°
  • Humidity: 79%
  • UV index: 5
  • Sunrise: 7:08 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 66°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphW 261°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 7:09 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 66°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphWSW 252°
  • Humidity: 47%
  • UV index: 5
  • Sunrise: 7:10 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 8mphW 269°
  • Humidity: 58%
  • UV index: 5
  • Sunrise: 7:11 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
Weather fluctuations are likely over the next ten days, and a mix of sunny, overcast, damp and lightning-active weather is anticipated.
Rainfall is expected on Wednesday and Thursday.
Noticeable swings in temperature are expected throughout the forecast window. The maximum temperature will vary between 53.6°F and 78.8°F, while the difference in minimum temperatures will be also substantial, as the lowest temperatures will be recorded between 39.2°F and 51.8°F.
With a high of 78.8°F, today is the warmest day; Thursday will be the coldest day, with the highest temperature of 53.6°F.
Updated: Oct 17, 2026 @ 21:51:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, skies will stay clear and sunny.

Today, the highest temperature will be 78.8°F, while the lowest temperature will be 51.8°F.
The maximum temperature today will be notably higher than the average highest temperature of 67.5°F in October. The lowest temperature will be a few degrees higher than the average low of 45°F.

On Saturday, in Posey, sunrise was at 7:03 am and sunset will be at 6:16 pm (PDT).

In Posey, today, there will be 11h and 13min of daylight.

On Sunday, in Posey, sunny conditions are expected to continue.

Tomorrow, the highest temperature will be 77°F, while the lowest temperature will be 51.8°F.
The maximum temperature tomorrow will be notably higher than the average highest temperature of 67.5°F in October. The lowest temperature will be a couple of degrees higher than the average low of 45°F.

On Sunday, in Posey, sunrise will be at 7:04 am and sunset at 6:15 pm (PDT).

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