10-Day Weather Forecast - San Marcos, CA

Mostly sunny. Warmer. Highs 80 to 84 in the western valleys to 76 to 81 near the foothills. Areas of winds east 10 to 15 mph with gusts to 30 mph becoming west with gusts to 25 mph in the afternoon.

Mostly clear. Lows 49 to 56 in wind sheltered areas to 52 to 60 in warmer locations. Areas of winds northeast 10 to 15 mph with gusts to 30 mph.

Sunny. Highs 85 to 88 in the western valleys to 76 to 81 near the foothills. Areas of winds east 15 to 25 mph. Gusts to 45 mph. . . Becoming 40 mph in the afternoon.

Mostly clear. Lows 53 to 61. Areas of winds east 20 to 30 mph with gusts to 45 mph.

Partly cloudy. Highs 78 to 82 in the western valleys to 71 to 76 near the foothills.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 50 to 55.

Partly cloudy. Highs 71 to 74 in the western valleys to 66 to 71 near the foothills.

Partly cloudy. Lows 49 to 54.

Partly cloudy. Highs around 72 in the western valleys to 66 to 71 near the foothills.

Mostly clear. Lows 47 to 52.

Mostly sunny. Highs 71 to 76.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 49 to 54.

Partly cloudy. Highs around 72 in the western valleys to 65 to 70 near the foothills.

Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 53F. Dew point will be around 49F with an average humidity of 80%. Winds will be 4 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 64F. Dew point will be around 49F with an average humidity of 68%. Winds will be 7 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 49F. Dew point will be around 47F with an average humidity of 86%. Winds will be 7 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 60F. Dew point will be around 48F with an average humidity of 73%. Winds will be 7 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 47F. Dew point will be around 45F with an average humidity of 86%. Winds will be 3 mph from the SE.