10-Day Weather Forecast - San Marcos, TX

Cloudy in the morning then becoming partly cloudy. Highs around 80. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.

Cloudy in the morning then becoming partly cloudy. Highs around 80. South winds around 10 mph with gusts up to 25 mph.

Partly cloudy in the evening then becoming cloudy. Lows in the mid 60s. South winds 10 to 15 mph with gusts up to 25 mph.

Mostly cloudy. Highs in the upper 70s.

Partly cloudy in the evening then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms after midnight. Much cooler with lows in the upper 30s. Chance of rain 40 percent.

Cloudy blustery. Highs in the upper 40s. Lows in the lower 30s.

Cloudy blustery. Highs in the upper 40s. Lows in the lower 30s.

Mostly cloudy. Highs in the lower 50s. Lows in the lower 30s.

Mostly cloudy. Highs in the lower 50s. Lows in the lower 30s.

Partly cloudy. Highs in the lower 60s. Lows in the upper 30s.

Partly cloudy. Highs in the lower 60s. Lows in the upper 30s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 60s.

Partly cloudy. Low temperature around 58F. Dew point will be around 56F with an average humidity of 87%. Winds will be 9 mph from the S.

Mostly cloudy. High temperature around 72F. Dew point will be around 60F with an average humidity of 76%. Winds will be 11 mph from the SW.

Partly cloudy. Low temperature around 61F. Dew point will be around 57F with an average humidity of 82%. Winds will be 8 mph from the SW.

Mostly cloudy. High temperature around 73F. Dew point will be around 59F with an average humidity of 71%. Winds will be 6 mph from the SW.

Partly cloudy. Low temperature around 56F. Dew point will be around 53F with an average humidity of 75%. Winds will be 3 mph from the N.