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      Elev 4671 ft, 9.532 °S 77.072 °W

      San Marcos, PE

      San Marcos Station37°
      Updated: 11:16 AM GMT-05:00 on September 8, 2026 (GMT -5)
      just now
      50°
      35°
      37
      Feels Like 34
      Rain Shower
      N
      9
      Gusts 20 mph
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Tue 09/08
        High 50°f
         88% Precip. / 0.09 in
        Rain showers in the morning with thunderstorms developing for the afternoon. High around 50F. Winds NE at 5 to 10 mph. Chance of rain 90%.
        Tonight
        Tue 09/08
        Low 35°f
         24% Precip. / 0 in
        Cloudy skies. Low around 35F. Winds light and variable.
        Tomorrow
        Wed 09/09
        High 54°f35°f
         57% Precip. / 0.05 in
        Partly cloudy early followed by increasing clouds with showers developing later in the day. High 54F. Winds NE at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        44°
        12PM
        45%
        45°
        1PM
        75%
        46°
        2PM
        83%
        46°
        3PM
        59%
        45°
        4PM
        44°
        5PM
        41°
        6PM
        39°
        6:05PM
        Sunset
        7PM
        41°
        8PM
        31%
        40°
        9PM
        39°
        10PM
        39°
        11PM
        38°
        12AM
        38°
        1AM
        38°
        2AM
        37°
        3AM
        37°
        4AM
        36°
        5AM
        36°
        6AM
        36°
        6:05AM
        Sunrise
        7AM
        37°
        8AM
        41°
        9AM
        44°
        10AM
        47°
        11AM
        49°
        Precipitation
        83%
        Storms continuing through 3 PM
        Pollen
        None
        Air Quality
        67
        Moderate
        UV Index
        9
        Very High
        Additional Conditions
        1. Pressure 30 in
        2. Visibility 5 miles
        3. Clouds Mostly Cloudy
        4. Dew Point30°F
        5. Humidity 56%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         SPHZ Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 50°F -°F -°F
        4. Low 35°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.1 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 54°F -°F -°F
        4. Low 35°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:06 AM 6:05 PM
        3. Civil Twilight 5:45 AM 6:26 PM
        4. Nautical Twilight 5:20 AM 6:50PM
        5. Astronomical Twilight 4:56 AM 7:15 PM
        1. Length of Visible Light 12h 41m
        2. Length of Day 11h 59m
        3. Tomorrow will be 30 seconds longer
        1. Moon 4:03 AM 4:02 PM
        2. Waning Crescent9% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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