10-Day Weather Forecast - San Marcos, CA
- |51°FPartly CloudyHourly details
Tonight
51°FPartly cloudy. Patchy fog overnight. Local visibility one quarter mile or less at times overnight. Lows 47 to 55 in wind sheltered areas to 52 to 59 in warmer locations. Light winds.
- 71|51°FMostly SunnyHourly details
Day
71°FMostly sunny. Highs 74 to 79. Light winds becoming west to 10 mph in the afternoon.
Night
51°FMostly clear in the evening. . . Becoming partly cloudy. Lows 43 to 51 in wind sheltered areas to 49 to 56 in warmer locations. Light winds.
Weekend Weather
- 64|50°FPartly CloudyHourly details
Day
64°FPartly cloudy in the morning. . . Becoming mostly sunny. Highs 70 to 74 in the western valleys to 72 to 77 near the foothills. Light winds becoming southwest 10 mph in the afternoon.
Night
50°FPartly cloudy. Lows 45 to 52 in wind sheltered areas to 50 to 56 in warmer locations. Light winds.
- 68|48°FPartly CloudyHourly details
Day
68°FPartly cloudy. Highs 73 to 78.
Night
48°FPartly cloudy. Lows 48 to 54.
- 67|50°FPartly CloudyHourly details
Day
67°FPartly cloudy. Highs 70 to 74 in the western valleys to 72 to 77 near the foothills.
Night
50°FClear. Lows 49 to 54.
- 65|55°FChance of Rain ShowersHourly details
Day
65°FMostly sunny in the morning then partly cloudy with a chance of showers in the afternoon. Highs 67 to 72.
Night
55°FPartly cloudy with a chance of showers in the evening then mostly cloudy with showers likely overnight. Lows 51 to 56.
- 61|50°FHeavy RainHourly details
Day
61°FShowers. Locally heavy rainfall possible. Highs 65 to 69 in the western valleys to 61 to 66 near the foothills.
Night
50°FShowers. Lows 51 to 56.
- 59|47°FRain Showers
Day
59°FShowers likely. Highs 65 to 69 in the western valleys to 61 to 66 near the foothills.
Night
47°FCloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 47F. Dew point will be around 49F with an average humidity of 97%. Winds will be 3 mph from the S.
- 57|44°F50% Chance of Rain
Day
57°FCloudy with a chance of rain. Chance of precipitation 50%. High temperature around 57F. Dew point will be around 51F with an average humidity of 87%. Winds will be 3 mph from the SW.
Night
44°FPartly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 44F. Dew point will be around 45F with an average humidity of 93%. Winds will be 2 mph from the SW.
Weekend Weather
- 56|43°F30% Chance of Rain
Day
56°FSunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 56F. Dew point will be around 46F with an average humidity of 76%. Winds will be 1 mph from the N.
Night
43°FClear. Low temperature around 43F. Dew point will be around 39F with an average humidity of 74%. Winds will be 4 mph from the NE.














