Weather forecast for 10 days
San Marcos, CA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:38 am

8:02 pm
PDT
Partly Cloudy
73°F / 57°F
  • Wind: 11mph SSW
  • Humidity: 63%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 11
On Saturday, June 21, moments of sunshine will break through the patchy clouds.
The predicted temperature range extends from a high of a temperate 73.4°F to a low of a mild 57.2°F.
Forecasts show the temperature forecasted to reach the usual June high of 75.2°F.
Sunrise will be at 5:38 am and sunset at 8:02 pm; the daylight will last for 14h and 23min.

Sunday, Jun 22.

Partly Cloudy
5:39 am

8:02 pm
PDT
Partly Cloudy
73°F / 57°F
  • Wind: 9mph WSW
  • Humidity: 63%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 11
On Sunday, in San Marcos, expect partly sunny skies with periods of cloudiness.
The maximum temperature will be a moderately hot 73.4°F, while the minimum temperature will be a mild 57.2°F.
On Sunday, the forecasted temperature will match June's typical high of 75.2°F.
Sunrise will be at 5:39 am and sunset at 8:02 pm; the daylight will last for 14h and 23min.

Frequently asked questions

What is the weather forecast for San Marcos for Saturday?
On Saturday, clouds and sunshine will alternate throughout the day.
What will be the maximum temperature on Saturday in San Marcos?
On Saturday, the maximum temperature will be 73.4°F, while the minimum temperature will be 57.2°F.
What is the weather forecast for San Marcos for Sunday?
On Sunday, thin clouds will pass through at times, but overall, it will remain bright.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 73.4°F, while the lowest temperature will be 57.2°F.
What is the weather forecast for San Marcos for the next ten days?
In San Marcos, predominantly overcast and occasionally clear weather is predicted for the next ten days.
How warm will it be in the next ten days in San Marcos?
The maximum temperature will range between 73.4°F and 80.6°F, while the minimum temperature will range between 57.2°F and 60.8°F.
What will be the warmest and the coldest days?
The warmest day will be next Saturday, with a maximum of 80.6°F. With a maximum temperature of 73.4°F, Saturday through Tuesday will be the coldest days.

Long-term weather forecast

ThuJun 19.
  • 75°F
  • 59°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Wind: 9mph SW
  • Humidity: 74%
  • UV index: 11
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:38 am 8:01 pm PDT
FriJun 20.
  • 75°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph SW
  • Humidity: 67%
  • UV index: 11
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:38 am 8:02 pm PDT
SatJun 21.
  • 73°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSW
  • Humidity: 63%
  • UV index: 11
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:38 am 8:02 pm PDT
SunJun 22.
  • 73°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 63%
  • UV index: 11
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:39 am 8:02 pm PDT
MonJun 23.
  • 73°F
  • 57°F
Sunny
Sunny
  • Wind: 9mph SW
  • Humidity: 64%
  • UV index: 11
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:39 am 8:02 pm PDT
TueJun 24.
  • 73°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 66%
  • UV index: 11
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:39 am 8:02 pm PDT
WedJun 25.
  • 75°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 64%
  • UV index: 11
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:39 am 8:02 pm PDT
ThuJun 26.
  • 77°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 64%
  • UV index: 11
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:40 am 8:03 pm PDT
FriJun 27.
  • 79°F
  • 61°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 62%
  • UV index: 11
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:40 am 8:03 pm PDT
SatJun 28.
  • 81°F
  • 61°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph W
  • Humidity: 61%
  • UV index: 11
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:41 am 8:03 pm PDT
Forecasts for the ten-day outlook show that primarily cloudy and occasionally bright weather is predicted.
Rainfall is not expected in San Marcos in the upcoming days.
In the upcoming period, the highest temperature will vary between 73.4°F and 80.6°F, while the lowest nightly temperature differences will be negligible, as the minimum temperature is expected to range between 57.2°F and 60.8°F.
Next Saturday is expected to be the warmest, reaching up to 80.6°F; the coldest days will be Saturday through Tuesday, with a maximum of 73.4°F.
Updated: Jun 19, 2025 @ 11:01:50 UTC
Published by: Weather U.S. | About Us
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