10-Day Weather Forecast - San Marcos, TX

Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 60s. North winds around 5 mph.

Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 40s. Southeast winds around 5 mph becoming southwest after midnight.

Cloudy with a slight chance of showers in the morning then partly cloudy in the afternoon. Highs in the upper 50s. Southwest winds around 5 mph.

Partly cloudy in the evening then becoming clear. Lows in the lower 40s. Southwest winds around 5 mph.

Clear. Highs in the upper 60s. Lows in the upper 30s.

Clear. Highs in the upper 60s. Lows in the upper 30s.

Clear. Highs in the mid 60s. Lows around 40.

Clear. Highs in the mid 60s. Lows around 40.

Clear. Highs in the mid 60s. Lows around 40.

Partly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Partly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Mostly clear. Lows in the mid 30s. Highs in the lower 60s.

Mostly clear. Lows in the mid 30s. Highs in the lower 60s.

Clear. Low temperature around 40F. Dew point will be around 28F with an average humidity of 51%. Winds will be 3 mph from the S.

Partly cloudy. High temperature around 62F. Dew point will be around 39F with an average humidity of 54%. Winds will be 5 mph from the S.

Cloudy. Low temperature around 47F. Dew point will be around 43F with an average humidity of 76%. Winds will be 3 mph from the SE.

Cloudy. High temperature around 61F. Dew point will be around 49F with an average humidity of 73%. Winds will be 5 mph from the SE.

Cloudy. Low temperature around 52F. Dew point will be around 51F with an average humidity of 89%. Winds will be 5 mph from the S.