10-Day Weather Forecast - San Marcos, CA

As of

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  • 98|76°F
    Partly Cloudy

    Today

    98°F

    Mostly sunny this morning, then partly cloudy with a slight chance of showers this afternoon. Hot. Highs 100 to 105. Areas of winds southwest to 10 mph becoming west this afternoon. Chance of measurable precipitation 20 percent.

    Tonight

    76°F

    Mostly clear in the evening..becoming partly cloudy. Lows 72 to 77. Areas of winds west to 10 mph in the evening becoming light.

    Hourly details
  • 92|73°F
    Partly Cloudy

    Day

    92°F

    Partly cloudy in the morning..becoming mostly sunny. Highs 94 to 99. Areas of winds south to 10 mph.

    Night

    73°F

    Mostly clear. Lows 68 to 73. Light winds.

    Hourly details
  • 88|69°F
    Mostly Sunny

    Day

    88°F

    Mostly sunny. Highs 87 to 92 in the western valleys to 90 to 95 near the foothills. Areas of winds south to 10 mph.

    Night

    69°F

    Mostly clear. Lows 61 to 66.

    Hourly details
  • 81|66°F
    Partly Cloudy

    Day

    81°F

    Partly cloudy with patchy fog in the morning.. becoming mostly sunny. Highs 81 to 86 in the western valleys to 84 to 89 near the foothills.

    Night

    66°F

    Mostly clear. Lows 55 to 61.

    Hourly details
  • 81|62°F
    Partly Cloudy

    Day

    81°F

    Partly cloudy in the morning..becoming sunny. Highs 80 to 84 in the western valleys to 82 to 87 near the foothills.

    Night

    62°F

    Mostly clear. Lows 53 to 60.

    Hourly details
  • 79|62°F
    Partly Cloudy

    Day

    79°F

    Partly cloudy in the morning..becoming mostly sunny. Highs 80 to 83 in the western valleys to 82 to 87 near the foothills.

    Night

    62°F

    Clear. Lows 53 to 59.

    Hourly details
  • 77|62°F
    Mostly Sunny

    Day

    77°F

    Mostly sunny. Highs 79 to 83 in the western valleys to 81 to 86 near the foothills.

    Night

    62°F

    Clear. Low temperature around 62F. Dew point will be around 61F with an average humidity of 87%. Winds will be 3 mph from the W.

  • 79|61°F
    Sunny

    Day

    79°F

    Sunny. High temperature around 79F. Dew point will be around 63F with an average humidity of 70%. Winds will be 5 mph from the SW.

    Night

    61°F

    Clear. Low temperature around 61F. Dew point will be around 61F with an average humidity of 87%. Winds will be 3 mph from the W.

  • 78|61°F
    Sunny

    Day

    78°F

    Sunny. High temperature around 78F. Dew point will be around 62F with an average humidity of 68%. Winds will be 5 mph from the W.

    Night

    61°F

    Clear. Low temperature around 61F. Dew point will be around 61F with an average humidity of 86%. Winds will be 3 mph from the W.

  • 79|61°F
    Sunny

    Day

    79°F

    Sunny. High temperature around 79F. Dew point will be around 62F with an average humidity of 66%. Winds will be 5 mph from the W.

    Night

    61°F

    Clear. Low temperature around 61F. Dew point will be around 61F with an average humidity of 86%. Winds will be 3 mph from the W.