San Marcos, Texas | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    50% Chance of Storms
    82°
    Forecast night icon
    Night
    40% Chance of Storms
    72°
    Sunday 5/12
    Day
    82°
    50% Chance of Storms
    Forecast day icon
    Night
    72°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Cloudy. Patchy fog this morning. A chance of showers and thunderstorms mainly this morning. Highs around 80. Southeast winds 10 to 15 mph. Chance of rain 50 percent.
    Night Details
    Cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the lower 70s. East winds around 10 mph becoming southeast after midnight. Chance of rain 40 percent.
  • Forecast day icon
    Monday
    50% Chance of Storms
    84°
    Forecast night icon
    Night
    Mostly Clear
    67°
    Monday 5/13
    Day
    84°
    50% Chance of Storms
    Forecast day icon
    Night
    67°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. A chance of showers and thunderstorms. Some thunderstorms may be severe. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 50 percent.
    Night Details
    Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph becoming north after midnight.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    87°
    Forecast night icon
    Night
    Partly Cloudy
    68°
    Tuesday 5/14
    Day
    87°
    Mostly Sunny
    Forecast day icon
    Night
    68°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 80s. North winds 5 to 10 mph becoming northeast in the afternoon.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s.
  • Forecast day icon
    Wednesday
    Chance of Storms
    88°
    Forecast night icon
    Night
    50% Chance of Storms
    71°
    Wednesday 5/15
    Day
    88°
    Chance of Storms
    Forecast day icon
    Night
    71°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    60% Chance of Storms
    79°
    Forecast night icon
    Night
    Chance of Storms
    72°
    Thursday 5/16
    Day
    79°
    60% Chance of Storms
    Forecast day icon
    Night
    72°
    Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the morning then showers likely in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.
    Night Details
    Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s.
  • Forecast day icon
    Friday
    Partly Cloudy
    86°
    Forecast night icon
    Night
    Partly Cloudy
    71°
    Friday 5/17
    Day
    86°
    Partly Cloudy
    Forecast day icon
    Night
    71°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the mid 80s. Lows in the upper 60s.
    Night Details
    Partly cloudy. Highs in the mid 80s. Lows in the upper 60s.
  • Forecast day icon
    Saturday
    Partly Cloudy
    86°
    Forecast night icon
    Night
    30% Chance of Rain
    72°
    Saturday 5/18
    Day
    86°
    Partly Cloudy
    Forecast day icon
    Night
    72°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. Highs in the mid 80s. Lows in the upper 60s.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 72F. Dew point will be around 72F with an average humidity of 89%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Sunday
    Partly Cloudy
    89°
    Forecast night icon
    Night
    Clear
    70°
    Sunday 5/19
    Day
    89°
    Partly Cloudy
    Forecast day icon
    Night
    70°
    Clear
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 89F. Dew point will be around 73F with an average humidity of 78%. Winds will be 3 mph from the S.
    Night Details
    Clear. Low temperature around 70F. Dew point will be around 71F with an average humidity of 80%. Winds will be 5 mph from the E.
  • Forecast day icon
    Monday
    Sunny
    86°
    Forecast night icon
    Night
    Clear
    70°
    Monday 5/20
    Day
    86°
    Sunny
    Forecast day icon
    Night
    70°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 86F. Dew point will be around 71F with an average humidity of 74%. Winds will be 3 mph from the E.
    Night Details
    Clear. Low temperature around 70F. Dew point will be around 70F with an average humidity of 82%. Winds will be 6 mph from the E.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    87°
    Forecast night icon
    Night
    Clear
    71°
    Tuesday 5/21
    Day
    87°
    Mostly Sunny
    Forecast day icon
    Night
    71°
    Clear
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 87F. Dew point will be around 71F with an average humidity of 75%. Winds will be 7 mph from the S.
    Night Details
    Clear. Low temperature around 71F. Dew point will be around 71F with an average humidity of 81%. Winds will be 6 mph from the SE.