10-Day Weather Forecast - San Marcos, CA

Mostly sunny in the morning. . . Becoming partly cloudy. Highs 70 to 75. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Partly cloudy. Patchy fog overnight. Lows 46 to 52. Areas of winds west 10 mph in the evening becoming light.

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 69 to 74. Areas of winds west to 10 mph.

Mostly clear. Lows 48 to 53.

Mostly sunny. Highs 77 to 82.

Mostly clear. Lows 53 to 56.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 81 to 86.

Partly cloudy. Lows 53 to 57.

Partly cloudy. Highs 76 to 81.

Partly cloudy. Lows 51 to 55.

Partly cloudy. Highs 70 to 73 in the western valleys to 66 to 71 near the foothills.

Mostly cloudy. Low temperature around 54F. Dew point will be around 46F with an average humidity of 70%. Winds will be 6 mph from the W.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 64F. Dew point will be around 52F with an average humidity of 73%. Winds will be 8 mph from the W.

Partly cloudy. Low temperature around 53F. Dew point will be around 51F with an average humidity of 85%. Winds will be 4 mph from the W.

Mostly cloudy. High temperature around 66F. Dew point will be around 54F with an average humidity of 73%. Winds will be 6 mph from the W.

Partly cloudy. Low temperature around 55F. Dew point will be around 54F with an average humidity of 86%. Winds will be 3 mph from the W.

Mostly cloudy. High temperature around 69F. Dew point will be around 56F with an average humidity of 72%. Winds will be 6 mph from the W.

Partly cloudy. Low temperature around 56F. Dew point will be around 55F with an average humidity of 87%. Winds will be 3 mph from the W.