10-Day Weather Forecast - Lake San Marcos, CA

Mostly sunny. Highs 74 to 79. Areas of winds east to 10 mph becoming west 10 mph in the afternoon.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 43 to 51 in wind sheltered areas to 48 to 54 in warmer locations. Light winds.

Partly cloudy. Highs 71 to 76. Light winds.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 48 to 53.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs 65 to 70.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 47 to 51.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs around 66 in the western valleys to 60 to 65 near the foothills.

Partly cloudy. A slight chance of showers in the evening. Lows 47 to 51.

Patchy fog in the morning. Partly cloudy. Highs around 70 in the western valleys to 62 to 67 near the foothills.

Partly cloudy in the evening. . . Becoming mostly clear. Lows 46 to 51.

Mostly sunny. Highs around 72 in the western valleys to 65 to 70 near the foothills.

Clear. Low temperature around 51F. Dew point will be around 31F with an average humidity of 43%. Winds will be 4 mph from the NE.

Mostly sunny. High temperature around 69F. Dew point will be around 39F with an average humidity of 42%. Winds will be 3 mph from the W.

Partly cloudy. Low temperature around 50F. Dew point will be around 39F with an average humidity of 57%. Winds will be 3 mph from the E.

Partly cloudy. High temperature around 68F. Dew point will be around 40F with an average humidity of 42%. Winds will be 3 mph from the W.

Partly cloudy. Low temperature around 51F. Dew point will be around 38F with an average humidity of 53%. Winds will be 3 mph from the E.

Mostly sunny. High temperature around 68F. Dew point will be around 41F with an average humidity of 42%. Winds will be 2 mph from the W.

Partly cloudy. Low temperature around 51F. Dew point will be around 40F with an average humidity of 58%. Winds will be 2 mph from the E.