Weather forecast for tomorrowPort San Luis, CA

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 72°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 14mphNW 313°
  • Humidity: 71%
  • UV index: 5
  • Sunrise: 7:12 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Tomorrow, on Monday, October 19, predominantly sunny weather will make for pleasant outdoor conditions.
The temperature will fluctuate from a high of a delightful 71.6°F to a low of a refreshing 55.4°F.
The anticipated daily high is projected to match October's typical maximum of 74.3°F.
Sunrise will be at 7:12 am and sunset at 6:23 pm; tomorrow's daylight will last for 11h and 10min.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 3 pm 70°C.
Coldest hour: 6 am 57°C.

Chance of precipitation

Highest chance: 6 am 21%.

Hourly weather forecast

  • 12 am
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 3mphNNW 331°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 2 am
  • 59°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 3mphNNE 20°
  • Humidity: 90%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 4mphNNE 16°
  • Humidity: 88%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 4mphN 355°
  • Humidity: 88%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:12 am
  • 8 am
  • 59°F
  • Feels like:
    59°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 4mphN 354°
  • Humidity: 87%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphNW 306°
  • Humidity: 73%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 70°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphWNW 294°
  • Humidity: 64%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 70°F
  • Feels like:
    70°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphWNW 303°
  • Humidity: 63%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphNW 306°
  • Humidity: 64%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 13mphNW 312°
  • Humidity: 69%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:23 pm
  • 8 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphNW 319°
  • Humidity: 80%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphNNW 334°
  • Humidity: 82%
  • Pressure: 29.88"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of cloudy and mostly clear weather is forecasted.
The temperature will vary between the lowest temperature of 57.2°F and the highest temperature of 69.8°F. The warmest part of the day will be from noon to 3 pm.
The maximum temperature will be alike with the average high of 74.3°F in October. The lowest temperature is also resembling October's typical minimum of 56.5°F.
Updated: Oct 18, 2026 @ 16:19:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, clear skies with only minor cloud interruptions are in the outlook.

Tomorrow, the maximum temperature in Port San Luis will be 71.6°F, while the minimum temperature will be 55.4°F.
The highest temperature will be in line with the average maximum of 74.3°F in October. The lowest temperature will be also in line with the average low of 56.5°F.

On Monday, in Port San Luis, sunrise will be at 7:12 am and sunset at 6:23 pm (PDT).

In Port San Luis, tomorrow, there will be 11h and 10min of daylight.