Weather forecast for 10 daysRio Oso, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 88°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSSE 167°
  • Humidity: 40%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
On Sunday, in Rio Oso, sunny and dry conditions are anticipated.
The day's temperature scale will range from a significant high of a blazing 87.8°F to a minimum of a cool 50°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is evaluated at a humid 87.8°F. Note that heat index values are valued for light wind and location in the shade.
Today, weather will feel hotter as the high trends toward September's average of 88.9°F.
Sunrise will be at 7:19 am and sunset at 6:23 pm; the daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest day: today 88°C.
Minimum temperature: 68°C.

Chance of precipitation

Highest chance: Thursday 41%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 88°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphSSE 167°
  • Humidity: 40%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphS 169°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:20 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 54°F
Cloudy
Cloudy
  • Precip. probability: 6%
  • Precipitation: 0.08"
  • Wind: 4mphNNW 332°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 6mphSW 233°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 50°F
Showers
Showers
  • Precip. probability: 41%
  • Precipitation: 0.08"
  • Wind: 7mphS 179°
  • Humidity: 76%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 7mphNNW 327°
  • Humidity: 66%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphS 182°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 68°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 8mphSSW 193°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 7mphW 276°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 70°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphSW 231°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:28 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
Models point to a combination of clear, cloudy and rain-soaked weather is anticipated.
Rainfall is predicted for Wednesday and Thursday. The days with the most rainfall will be Tuesday through Thursday, with minimal precipitation of 0.08".
Temperature fluctuation will be noticeable throughout the forecast window. Maximum temperatures are forecasted between 68°F and 87.8°F, while the minimum temperature is forecast to range between 42.8°F and 53.6°F.
With a high of 87.8°F, today is the hottest day; the coldest days will be Thursday, next Sunday and Monday, with a maximum of 68°F.
Updated: Oct 18, 2026 @ 12:34:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunshine will likely continue with scattered clouds at most.

Today, the maximum temperature will be 87.8°F, while the minimum temperature will be 50°F. The maximum heat index, which indicates how humid air affects the felt temperature, is calculated to be 87.8°F.
Today, the highest temperature will be noticeably higher than the average maximum of 76.1°F in October. Today, the lowest temperature will be in line with the average low temperature.

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

In Rio Oso, today, there will be 11h and 4min of daylight.