10-Day Weather Forecast - San Marcos, CA

Partly cloudy with patchy fog this morning. . . Becoming sunny. Highs 80 to 85 in the western valleys to 88 to 93 near the foothills. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph this afternoon.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 59 to 63. Areas of winds west to 10 mph in the evening becoming light.

Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 79 to 84 in the western valleys to 89 to 94 near the foothills. Areas of winds west to 10 mph.

Clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 60 to 64. Areas of winds west to 10 mph in the evening becoming light.

Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 82 to 87 in the western valleys to 92 to 97 near the foothills. Light winds becoming west 10 mph in the afternoon.

Mostly clear. Lows 60 to 64.

Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 81 to 86 in the western valleys to 91 to 96 near the foothills.

Mostly clear. Lows 59 to 63.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 79 to 83 in the western valleys to 88 to 93 near the foothills.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 58 to 62.

Partly cloudy. Highs 78 to 82 in the western valleys to 86 to 91 near the foothills.

Partly cloudy. Lows 59 to 64.

Partly cloudy. Highs 79 to 84 in the western valleys to 87 to 92 near the foothills.

Clear. Low temperature around 71F. Dew point will be around 62F with an average humidity of 70%. Winds will be 3 mph from the W.

Mostly sunny. High temperature around 86F. Dew point will be around 65F with an average humidity of 59%. Winds will be 6 mph from the W.

Clear. Low temperature around 72F. Dew point will be around 64F with an average humidity of 68%. Winds will be 3 mph from the W.

Sunny. High temperature around 86F. Dew point will be around 67F with an average humidity of 61%. Winds will be 6 mph from the W.

Clear. Low temperature around 73F. Dew point will be around 65F with an average humidity of 70%. Winds will be 3 mph from the SW.