San Marcos, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    53°
    Thursday 4/18
    Forecast night icon
    53°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Low temperature around 53F. Dew point will be around 53F with an average humidity of 89%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Friday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Friday 4/19
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog this morning. . . Becoming mostly sunny. Highs 69 to 74. Light winds becoming west 10 to 15 mph this afternoon.
    Night Details
    Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 43 to 51. Areas of winds west to 10 mph in the evening becoming light.
  • Forecast day icon
    Saturday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Saturday 4/20
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 73 to 78. Light winds becoming west 10 mph in the afternoon.
    Night Details
    Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 47 to 55. Areas of winds west to 10 mph in the evening becoming light.
  • Forecast day icon
    Sunday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    55°
    Sunday 4/21
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    55°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Mostly sunny. Highs 76 to 79 in the western valleys to 80 to 85 near the foothills. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph in the afternoon.
    Night Details
    Mostly clear. Patchy fog overnight. Lows 48 to 55.
  • Forecast day icon
    Monday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Monday 4/22
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 74 to 79.
    Night Details
    Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 44 to 54.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Tuesday 4/23
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs 68 to 73.
    Night Details
    Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 40 to 50.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Wednesday 4/24
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs 65 to 70.
    Night Details
    Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 41 to 51.
  • Forecast day icon
    Thursday
    Partly Cloudy
    64°
    Forecast night icon
    Night
    30% Chance of Rain
    52°
    Thursday 4/25
    Day
    64°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs 64 to 67 in the western valleys to 59 to 64 near the foothills.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 52F. Dew point will be around 50F with an average humidity of 86%. Winds will be 6 mph from the W.
  • Forecast day icon
    Friday
    40% Chance of Rain
    61°
    Forecast night icon
    Night
    40% Chance of Rain
    51°
    Friday 4/26
    Day
    61°
    40% Chance of Rain
    Forecast day icon
    Night
    51°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 61F. Dew point will be around 52F with an average humidity of 79%. Winds will be 8 mph from the SW.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 51F. Dew point will be around 50F with an average humidity of 89%. Winds will be 5 mph from the W.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    62°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Saturday 4/27
    Day
    62°
    30% Chance of Rain
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 62F. Dew point will be around 52F with an average humidity of 76%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 52F. Dew point will be around 50F with an average humidity of 86%. Winds will be 4 mph from the W.
  • Forecast day icon
    Sunday
    Mostly Cloudy
    65°
    Forecast night icon
    Night
    Clear
    52°
    Sunday 4/28
    Day
    65°
    Mostly Cloudy
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 65F. Dew point will be around 53F with an average humidity of 72%. Winds will be 5 mph from the W.
    Night Details
    Clear. Low temperature around 52F. Dew point will be around 51F with an average humidity of 84%. Winds will be 3 mph from the W.