10-Day Weather Forecast - San Marcos, CA

Partly cloudy this morning. . . Becoming mostly sunny. Highs 77 to 82. Areas of winds west to 10 mph.

Mostly clear. Lows 49 to 57 in wind sheltered areas to 54 to 60 in warmer locations. Light winds.

Sunny. Highs 82 to 87. Areas of winds northeast to 10 mph becoming west 10 mph in the afternoon.

Clear. Lows 54 to 61 in wind sheltered areas to 58 to 64 in warmer locations. Light winds becoming east 10 mph overnight.

Sunny. Highs 87 to 92. Areas of winds west 10 mph.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 58 to 63.

Partly cloudy. Highs 81 to 86.

Partly cloudy in the evening. . . Becoming mostly clear. Lows 53 to 57.

Partly cloudy. Highs 74 to 79.

Partly cloudy. Lows 49 to 54.

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

Partly cloudy. Lows 48 to 52.

Partly cloudy. Highs 71 to 74 in the western valleys to 67 to 72 near the foothills.

Clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 77%. Winds will be 3 mph from the E.

Sunny. High temperature around 73F. Dew point will be around 53F with an average humidity of 60%. Winds will be 4 mph from the W.

Clear. Low temperature around 53F. Dew point will be around 51F with an average humidity of 81%. Winds will be 2 mph from the E.

Sunny. High temperature around 71F. Dew point will be around 53F with an average humidity of 59%. Winds will be 4 mph from the W.

Clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 75%. Winds will be 3 mph from the E.

Sunny. High temperature around 71F. Dew point will be around 47F with an average humidity of 49%. Winds will be 4 mph from the W.

Clear. Low temperature around 52F. Dew point will be around 45F with an average humidity of 68%. Winds will be 3 mph from the E.