San Marcos, Texas | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Thunderstorms
    76°
    Forecast night icon
    Night
    Partly Cloudy
    68°
    Sunday 4/28
    Day
    76°
    Thunderstorms
    Forecast day icon
    Night
    68°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 95% chance for rain and thunderstorms. High temperature around 76F. Dew point will be around 67F with an average humidity of 88%. Winds will be 9 mph from the S.
    Night Details
    Partly cloudy this evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. South winds around 5 mph.
  • Forecast day icon
    Monday
    Partly Cloudy
    82°
    Forecast night icon
    Night
    Partly Cloudy
    70°
    Monday 4/29
    Day
    82°
    Partly Cloudy
    Forecast day icon
    Night
    70°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs in the upper 80s. South winds 5 to 10 mph becoming southeast in the afternoon.
    Night Details
    Clear in the evening then becoming partly cloudy. Lows in the upper 60s. Southeast winds 5 to 10 mph.
  • Forecast day icon
    Tuesday
    Chance of Storms
    80°
    Forecast night icon
    Night
    Partly Cloudy
    71°
    Tuesday 4/30
    Day
    80°
    Chance of Storms
    Forecast day icon
    Night
    71°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 80s. Southeast winds 5 to 10 mph.
    Night Details
    Partly cloudy in the evening then becoming cloudy. Lows around 70. Southeast winds around 10 mph with gusts up to 20 mph.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    81°
    Forecast night icon
    Night
    40% Chance of Storms
    72°
    Wednesday 5/1
    Day
    81°
    50% Chance of Storms
    Forecast day icon
    Night
    72°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    Cloudy. A chance of showers and thunderstorms mainly in the evening. Lows around 70. Chance of rain 40 percent.
  • Forecast day icon
    Thursday
    50% Chance of Storms
    81°
    Forecast night icon
    Night
    50% Chance of Storms
    71°
    Thursday 5/2
    Day
    81°
    50% Chance of Storms
    Forecast day icon
    Night
    71°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    50% Chance of Storms
    81°
    Forecast night icon
    Night
    30% Chance of Storms
    68°
    Friday 5/3
    Day
    81°
    50% Chance of Storms
    Forecast day icon
    Night
    68°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the mid 60s. Chance of rain 30 percent.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    78°
    Forecast night icon
    Night
    40% Chance of Storms
    67°
    Saturday 5/4
    Day
    78°
    40% Chance of Storms
    Forecast day icon
    Night
    67°
    40% Chance of Storms
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 40 percent.
  • Forecast day icon
    Sunday
    30% Chance of Storms
    77°
    Forecast night icon
    Night
    50% Chance of Storms
    66°
    Sunday 5/5
    Day
    77°
    30% Chance of Storms
    Forecast day icon
    Night
    66°
    50% Chance of Storms
    Forecast night icon
    Day Details
    Mostly cloudy. A slight chance of showers and thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
    Night Details
    Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 67F with an average humidity of 90%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Monday
    50% Chance of Storms
    78°
    Forecast night icon
    Night
    40% Chance of Storms
    68°
    Monday 5/6
    Day
    78°
    50% Chance of Storms
    Forecast day icon
    Night
    68°
    40% Chance of Storms
    Forecast night icon
    Day Details
    Cloudy with a 75% chance for rain and thunderstorms. High temperature around 78F. Dew point will be around 68F with an average humidity of 84%. Winds will be 6 mph from the SE.
    Night Details
    Partly cloudy with a 70% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 68F with an average humidity of 89%. Winds will be 7 mph from the SE.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    81°
    Forecast night icon
    Night
    30% Chance of Storms
    68°
    Tuesday 5/7
    Day
    81°
    40% Chance of Storms
    Forecast day icon
    Night
    68°
    30% Chance of Storms
    Forecast night icon
    Day Details
    Cloudy with a 70% chance for rain and thunderstorms. High temperature around 81F. Dew point will be around 70F with an average humidity of 82%. Winds will be 6 mph from the SE.
    Night Details
    Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 69F with an average humidity of 85%. Winds will be 6 mph from the SE.