Weather forecast for 10 daysSan Luis Obispo, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 84°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWNW 284°
  • Humidity: 41%
  • UV index: 6
  • Sunrise: 7:11 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Today, in San Luis Obispo, bright and sunny weather is expected.
A significant variation in temperature is anticipated, ranging from a high of a temperate 84.2°F to a low of a crisp 51.8°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is estimated at 84.2°F.
The anticipated high is hotter and better reflects September's normal temperature profile than that of October.
Sunrise will be at 7:11 am and sunset at 6:23 pm; the daylight will last for 11h and 12min.

10-day overview

Daily temperatures

Warmest day: today 84°C.
Coldest day: Wednesday 66°C.

Chance of precipitation

Highest chance: Wednesday 82%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 84°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWNW 284°
  • Humidity: 41%
  • UV index: 6
  • Sunrise: 7:11 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 73°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 14mphNW 306°
  • Humidity: 61%
  • UV index: 5
  • Sunrise: 7:12 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 55°F
Cloudy
Cloudy
  • Precip. probability: 14%
  • Precipitation: 0.24"
  • Wind: 11mphW 260°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 7:13 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 54°F
Rain / Thunder
Rain / Thunder
  • Precip. probability: 82%
  • Precipitation: 0.55"
  • Wind: 10mphSSW 196°
  • Humidity: 81%
  • UV index: 3
  • Sunrise: 7:14 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 50°F
AM Showers
AM Showers
  • Precip. probability: 38%
  • Precipitation: 0.08"
  • Wind: 14mphNW 304°
  • Humidity: 77%
  • UV index: 5
  • Sunrise: 7:15 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 14mphNNW 341°
  • Humidity: 67%
  • UV index: 5
  • Sunrise: 7:16 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphN 352°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:16 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphNW 325°
  • Humidity: 52%
  • UV index: 5
  • Sunrise: 7:17 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 13mphNW 315°
  • Humidity: 56%
  • UV index: 5
  • Sunrise: 7:18 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 12mphNW 320°
  • Humidity: 56%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
Mixed conditions are forecasted for the coming ten days, and a mix of dull, bright, thunderstorm-prone and rainy weather is expected.
Rainfall is forecasted for Tuesday through Thursday.
Temperature fluctuation will be noticeable in the next ten days. Maximum temperatures are forecasted between 66.2°F and 84.2°F, while nighttime temperatures are expected to vary from 48.2°F to 55.4°F.
The hottest day is today, with a maximum temperature of 84.2°F; with the highest temperature of 66.2°F, Wednesday will be the coldest day.
Updated: Oct 18, 2026 @ 14:06:26 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 highest temperature will be 84.2°F, while the lowest temperature will be 51.8°F. The maximum heat index, which adjusts the air temperature based on humidity, is evaluated at 84.2°F.
The maximum temperature will be significantly higher than the average highest temperature of 74.3°F in October. The lowest temperature will be a couple of degrees lower than the average low of 56.5°F.

On Sunday, in San Luis Obispo, sunrise will be at 7:11 am and sunset at 6:23 pm (PDT).

Today, the daylight will last for 11h and 12min.