10-Day Weather Forecast - San Marcos, TX

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  • |39°F
    Clear
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    Tonight

    39°F

    Clear cold with lows in the lower 30s. Southwest winds 5 to 10 mph.

    Hourly details
  • Day

    66°F

    Mostly sunny. Highs in the mid 60s. West winds around 5 mph becoming southeast with gusts up to 20 mph in the afternoon.

    Night

    45°F

    Partly cloudy in the evening then becoming mostly cloudy. Lows around 40. Northeast winds 5 to 10 mph.

    Hourly details
  • Day

    60°F

    Cloudy. Highs in the mid 50s. Northeast winds 5 to 10 mph becoming east in the afternoon.

    Night

    54°F

    Cloudy. A slight chance of showers in the evening then a chance of showers after midnight. Lows in the upper 40s. Southeast winds around 5 mph. Chance of rain 30 percent.

    Hourly details
  • Day

    64°F

    Cloudy. A chance of showers mainly in the morning. Highs in the mid 60s. Chance of rain 50 percent.

    Night

    51°F

    Partly cloudy. Lows in the upper 40s. Highs in the lower 60s.

    Hourly details
  • Day

    64°F

    Partly cloudy. Lows in the upper 40s. Highs in the lower 60s.

    Night

    54°F

    Mostly cloudy. Lows in the mid 40s. Highs in the mid 60s.

    Hourly details
  • Day

    69°F

    Mostly cloudy. Lows in the mid 40s. Highs in the mid 60s.

    Night

    46°F

    Mostly cloudy with a slight chance of showers. Lows around 50. Highs in the mid 60s.

    Hourly details
  • Weekend Weather

  • Day

    56°F

    Mostly cloudy with a slight chance of showers. Lows around 50. Highs in the mid 60s.

    Night

    32°F

    Partly cloudy in the evening then becoming mostly cloudy. A slight chance of showers. Cooler with lows in the upper 30s.

    Hourly details
  • Day

    44°F

    Mostly cloudy. Cooler with highs in the lower 50s.

    Night

    31°F

    Partly cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 31F. Dew point will be around 28F with an average humidity of 76%. Winds will be 10 mph from the NE.

  • Day

    44°F

    Cloudy. High temperature around 44F. Dew point will be around 32F with an average humidity of 73%. Winds will be 7 mph from the NE.

    Night

    35°F

    Cloudy. Low temperature around 35F. Dew point will be around 34F with an average humidity of 86%. Winds will be 6 mph from the NE.

  • Day

    49°F

    Cloudy. High temperature around 49F. Dew point will be around 40F with an average humidity of 81%. Winds will be 5 mph from the NE.

    Night

    38°F

    Cloudy. Low temperature around 38F. Dew point will be around 38F with an average humidity of 88%. Winds will be 7 mph from the NE.