10-Day Weather Forecast - San Marcos, CA

Partly cloudy in the morning. . . Becoming mostly sunny. Cooler. Highs 68 to 73. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 41 to 49 in wind sheltered areas to 45 to 50 in warmer locations. Areas of winds west to 10 mph in the evening becoming light.

Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 72 to 77. Light winds becoming west 10 mph in the afternoon.

Partly cloudy. Lows 49 to 53.

Partly cloudy. Highs 73 to 78.

Partly cloudy. Lows 48 to 52.

Partly cloudy in the morning. . . Becoming sunny. Highs 73 to 76 in the western valleys to 69 to 74 near the foothills.

Clear. Lows 47 to 52.

Mostly sunny. Highs 73 to 76 in the western valleys to 69 to 74 near the foothills.

Mostly clear. Lows 48 to 52.

Mostly sunny. Highs 76 to 79 in the western valleys to 70 to 75 near the foothills.

Clear. Low temperature around 52F. Dew point will be around 28F with an average humidity of 36%. Winds will be 5 mph from the NE.

Sunny. High temperature around 78F. Dew point will be around 40F with an average humidity of 33%. Winds will be 4 mph from the NE.

Clear. Low temperature around 50F. Dew point will be around 44F with an average humidity of 68%. Winds will be 2 mph from the E.

Sunny. High temperature around 73F. Dew point will be around 48F with an average humidity of 50%. Winds will be 4 mph from the SW.

Clear. Low temperature around 48F. Dew point will be around 48F with an average humidity of 83%. Winds will be 3 mph from the SW.

Sunny. High temperature around 71F. Dew point will be around 49F with an average humidity of 56%. Winds will be 4 mph from the W.

Clear. Low temperature around 47F. Dew point will be around 47F with an average humidity of 84%. Winds will be 2 mph from the SW.