San Marcos, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Wednesday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Wednesday 5/1
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy this morning. . . Becoming mostly sunny. Patchy fog this morning. Highs 71 to 76. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph this afternoon.
    Night Details
    Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 46 to 53. Areas of winds west to 10 mph in the evening becoming light.
  • Forecast day icon
    Thursday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Thursday 5/2
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 74 to 79. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph in the afternoon.
    Night Details
    Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 46 to 53. Areas of winds southwest to 10 mph in the evening becoming light.
  • Forecast day icon
    Friday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Partly Cloudy
    56°
    Friday 5/3
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    56°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 73 to 76 in the western valleys to 74 to 79 near the foothills. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
    Night Details
    Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 46 to 53.
  • Forecast day icon
    Saturday
    Partly Cloudy
    69°
    Forecast night icon
    Night
    Chance of Rain Showers
    56°
    Saturday 5/4
    Day
    69°
    Partly Cloudy
    Forecast day icon
    Night
    56°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 72 to 77.
    Night Details
    Partly cloudy in the evening then cloudy with a slight chance of showers overnight. Patchy fog overnight. Lows 44 to 54.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    60°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Sunday 5/5
    Day
    60°
    Chance of Rain Showers
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy with a slight chance of showers in the morning then mostly cloudy in the afternoon. Patchy fog. Highs around 64 in the western valleys to 57 to 62 near the foothills.
    Night Details
    Partly cloudy in the evening. . . Becoming mostly cloudy. Patchy fog. Colder. Lows 38 to 48.
  • Forecast day icon
    Monday
    Partly Cloudy
    66°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Monday 5/6
    Day
    66°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs 66 to 71.
    Night Details
    Partly cloudy. Patchy fog overnight. Lows 42 to 50.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Tuesday 5/7
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Day Details
    Patchy fog in the morning. Mostly sunny. Highs 70 to 75.
    Night Details
    Partly cloudy. Low temperature around 53F. Dew point will be around 51F with an average humidity of 82%. Winds will be 5 mph from the S.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Wednesday 5/8
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 67F. Dew point will be around 53F with an average humidity of 71%. Winds will be 8 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 53F. Dew point will be around 51F with an average humidity of 82%. Winds will be 6 mph from the SW.
  • Forecast day icon
    Thursday
    Mostly Cloudy
    66°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Thursday 5/9
    Day
    66°
    Mostly Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 66F. Dew point will be around 52F with an average humidity of 69%. Winds will be 7 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 53F. Dew point will be around 51F with an average humidity of 81%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Friday
    Mostly Cloudy
    67°
    Forecast night icon
    Night
    Clear
    54°
    Friday 5/10
    Day
    67°
    Mostly Cloudy
    Forecast day icon
    Night
    54°
    Clear
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 67F. Dew point will be around 52F with an average humidity of 67%. Winds will be 6 mph from the W.
    Night Details
    Clear. Low temperature around 54F. Dew point will be around 50F with an average humidity of 77%. Winds will be 3 mph from the SW.