10-Day Weather Forecast - Lake San Marcos, CA

Sunny. Highs around 77 in the western valleys to 70 to 75 near the foothills. Areas of winds east 10 to 20 mph. Gusts to 40 mph. . . Becoming 35 mph in the afternoon.

Clear. Lows 45 to 51 in wind sheltered areas to 49 to 55 in warmer locations. Areas of winds east to 10 mph.

Mostly sunny. Highs 78 to 83. Areas of winds northeast to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Mostly clear. Lows 48 to 55 in wind sheltered areas to 52 to 58 in warmer locations. Areas of winds east 10 to 15 mph with gusts to 30 mph.

Mostly sunny. Highs 80 to 84 in the western valleys to 76 to 81 near the foothills.

Mostly clear. Lows 51 to 56.

Mostly sunny. Highs around 80 in the western valleys to 74 to 79 near the foothills.

Mostly clear. Lows 52 to 57.

Mostly sunny. Highs around 81 in the western valleys to 74 to 79 near the foothills.

Partly cloudy. Lows 51 to 56.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 78 to 83.

Partly cloudy. Lows 51 to 55.

Partly cloudy. Highs 76 to 81.

Partly cloudy. Low temperature around 51F. Dew point will be around 37F with an average humidity of 48%. Winds will be 1 mph from the E.

Mostly sunny. High temperature around 72F. Dew point will be around 41F with an average humidity of 41%. Winds will be 2 mph from the W.

Clear. Low temperature around 48F. Dew point will be around 44F with an average humidity of 70%. Winds will be 2 mph from the W.

Sunny. High temperature around 65F. Dew point will be around 48F with an average humidity of 63%. Winds will be 4 mph from the W.

Clear. Low temperature around 46F. Dew point will be around 45F with an average humidity of 83%. Winds will be 3 mph from the SW.