10-Day Weather Forecast - San Marcos, CA

Mostly sunny. Warmer. Highs 81 to 86. Areas of winds northeast 10 to 15 mph with gusts to 25 mph in the morning becoming light.

Mostly clear. Lows 48 to 56 in wind sheltered areas to 53 to 60 in warmer locations. Light winds.

Mostly sunny. Highs 76 to 81. Light winds becoming southwest 10 mph in the afternoon.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 44 to 52 in wind sheltered areas to 50 to 55 in warmer locations. Light winds.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 70 to 74 in the western valleys to 72 to 77 near the foothills.

Partly cloudy. Lows 49 to 56.

Patchy fog in the morning. Partly cloudy. Highs 73 to 78.

Partly cloudy. Patchy fog overnight. Lows 49 to 54.

Patchy fog in the morning. Partly cloudy. Highs 71 to 76.

Partly cloudy. Lows 49 to 54.

Mostly cloudy in the morning then partly cloudy with a slight chance of showers in the afternoon. Highs 67 to 72.

Partly cloudy. A slight chance of showers in the evening then a chance of showers overnight. Lows 50 to 55.

Mostly cloudy with a chance of showers. Highs 67 to 72.

Cloudy with probable rain. Chance of precipitation 80%. Low temperature around 51F. Dew point will be around 53F with an average humidity of 100%. Winds will be 6 mph from the S.

Cloudy with probable rain. Chance of precipitation 80%. High temperature around 55F. Dew point will be around 54F with an average humidity of 100%. Winds will be 5 mph from the SW.

Cloudy with probable rain. Chance of precipitation 65%. Low temperature around 47F. Dew point will be around 49F with an average humidity of 99%. Winds will be 3 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 53F. Dew point will be around 49F with an average humidity of 92%. Winds will be 3 mph from the SW.

Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 44F. Dew point will be around 46F with an average humidity of 93%. Winds will be 2 mph from the E.