San Marcos Hourly Weather

Partly cloudy 16°

Partly cloudy, feels like 17°.

San Marcos, California, United States · Tuesday, 3 November 2026 19:45 local time

Low/High
12°/23°
Humidity
80%
Visibility
16.2 km
Wind
4.3 km/h
Dew point
13°
UV
0.0

Next 24 Hours

San Marcos Hourly Weather — 48 hours ahead

TimeWeatherTemperatureFeels likeRainHumidityWind
Partly cloudy 17°17°0% 82%6 km/h
Partly cloudy 16°17°0% 80%4 km/h
Partly cloudy 17°18°0% 85%6 km/h
Partly cloudy 16°16°0% 82%8 km/h
Partly cloudy 16°17°1% 82%5 km/h
Partly cloudy 17°17°2% 84%6 km/h
Overcast 17°16°3% 81%9 km/h
Overcast 15°15°4% 82%9 km/h
Overcast 14°14°6% 85%8 km/h
Overcast 14°13°6% 83%8 km/h
Partly cloudy 14°13°4% 78%8 km/h
Mostly clear 14°12°2% 79%9 km/h
Mostly clear 14°14°0% 82%8 km/h
Mostly clear 17°17°0% 77%6 km/h
Mostly clear 18°19°0% 77%2 km/h
Mostly clear 20°20°0% 64%6 km/h
Mostly clear 21°22°0% 55%5 km/h
Mostly clear 22°22°0% 54%10 km/h
Mostly clear 22°22°0% 55%11 km/h
Mostly clear 22°21°0% 57%11 km/h
Mostly clear 21°20°0% 59%12 km/h
Mostly clear 20°19°0% 64%12 km/h
Mostly clear 18°18°0% 69%7 km/h
Mostly clear 17°17°0% 71%3 km/h
Overcast 16°16°0% 73%3 km/h
Mostly clear 16°15°0% 75%7 km/h
Mostly clear 15°14°0% 78%7 km/h
Mostly clear 15°14°0% 78%7 km/h
Partly cloudy 14°13°0% 76%7 km/h
Mostly clear 14°13°0% 75%7 km/h
Overcast 14°13°0% 74%6 km/h
Overcast 14°13°0% 73%4 km/h
Clear sky 13°12°0% 74%4 km/h
Clear sky 13°11°0% 75%9 km/h
Mostly clear 13°11°0% 75%9 km/h
Mostly clear 13°11°0% 72%9 km/h
Clear sky 14°12°0% 59%8 km/h
Clear sky 17°16°0% 54%1 km/h
Clear sky 20°20°0% 45%1 km/h
Clear sky 23°22°0% 34%1 km/h
Clear sky 25°24°0% 29%2 km/h
Clear sky 26°25°0% 26%8 km/h
Mostly clear 25°24°0% 40%14 km/h
Partly cloudy 24°23°0% 41%13 km/h
Partly cloudy 23°21°0% 43%12 km/h
Partly cloudy 22°20°0% 46%11 km/h
Partly cloudy 19°18°0% 58%8 km/h
Partly cloudy 18°18°0% 64%6 km/h

Summary

Over the next 48 hours in San Marcos, temperatures range from 13–26°C. The chance of rain stays low (6% at most).

Updated at 19:48 local time, 3 November 2026

San Marcos Hourly Temperature and Chance of Rain

San Marcos Air Quality

Good · AQI 45

Air quality is good and poses little or no risk for outdoor activity.

PM2.5 (µg/m³)14
PM10 (µg/m³)17
O₃ (µg/m³)59
NO₂ (µg/m³)33
SO₂ (µg/m³)2.7
CO (µg/m³)239

Air Quality →

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