San Marcos, Texas | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    70% Chance of Rain
    67°
    Monday 5/13
    Forecast night icon
    67°
    70% Chance of Rain
    Hourly
    Night Details
    Mostly clear with probable rain. Chance of precipitation 70%. Low temperature around 67F. Dew point will be around 67F with an average humidity of 90%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Tuesday
    Sunny
    86°
    Forecast night icon
    Night
    Clear
    69°
    Tuesday 5/14
    Day
    86°
    Sunny
    Forecast day icon
    Night
    69°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 80s. Northwest winds around 5 mph becoming northeast this afternoon.
    Night Details
    Clear. Lows in the mid 60s. Southeast winds 5 to 10 mph becoming south after midnight.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    87°
    Forecast night icon
    Night
    Chance of Storms
    69°
    Wednesday 5/15
    Day
    87°
    Partly Cloudy
    Forecast day icon
    Night
    69°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then becoming partly cloudy. Highs around 90. South winds 10 to 15 mph with gusts up to 25 mph.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
  • Forecast day icon
    Thursday
    70% Chance of Storms
    83°
    Forecast night icon
    Night
    30% Chance of Storms
    73°
    Thursday 5/16
    Day
    83°
    70% Chance of Storms
    Forecast day icon
    Night
    73°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Cloudy. A chance of showers and thunderstorms in the morning then showers and thunderstorms likely in the afternoon. Highs in the mid 80s. Southeast winds 10 to 15 mph. Chance of rain 70 percent.
    Night Details
    Mostly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the upper 60s. Chance of rain 30 percent.
  • Forecast day icon
    Friday
    Chance of Storms
    83°
    Forecast night icon
    Night
    Partly Cloudy
    70°
    Friday 5/17
    Day
    83°
    Chance of Storms
    Forecast day icon
    Night
    70°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s.
    Night Details
    Partly cloudy. Lows in the mid 60s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    84°
    Forecast night icon
    Night
    Mostly Clear
    71°
    Saturday 5/18
    Day
    84°
    Mostly Sunny
    Forecast day icon
    Night
    71°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
    Night Details
    Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
  • Forecast day icon
    Sunday
    Sunny
    84°
    Forecast night icon
    Night
    Mostly Clear
    69°
    Sunday 5/19
    Day
    84°
    Sunny
    Forecast day icon
    Night
    69°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 90s.
    Night Details
    Mostly clear. Lows in the upper 60s. Highs in the lower 90s.
  • Forecast day icon
    Monday
    Mostly Sunny
    89°
    Forecast night icon
    Night
    Clear
    71°
    Monday 5/20
    Day
    89°
    Mostly Sunny
    Forecast day icon
    Night
    71°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the upper 60s. Highs in the lower 90s.
    Night Details
    Clear. Low temperature around 71F. Dew point will be around 71F with an average humidity of 82%. Winds will be 8 mph from the SE.
  • Forecast day icon
    Tuesday
    Cloudy
    87°
    Forecast night icon
    Night
    Clear
    70°
    Tuesday 5/21
    Day
    87°
    Cloudy
    Forecast day icon
    Night
    70°
    Clear
    Forecast night icon
    Day Details
    Cloudy with scattered thunderstorms. Chance of storms 35%. High temperature around 87F. Dew point will be around 72F with an average humidity of 79%. Winds will be 7 mph from the S.
    Night Details
    Clear. Low temperature around 70F. Dew point will be around 72F with an average humidity of 83%. Winds will be 8 mph from the SE.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    86°
    Forecast night icon
    Night
    30% Chance of Rain
    71°
    Wednesday 5/22
    Day
    86°
    Partly Cloudy
    Forecast day icon
    Night
    71°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with widely scattered thunderstorms. Chance of storms 30%. High temperature around 86F. Dew point will be around 72F with an average humidity of 77%. Winds will be 9 mph from the S.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 71F. Dew point will be around 72F with an average humidity of 83%. Winds will be 9 mph from the SE.