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      Elev 4456 ft, 9.570 °S 77.048 °W

      San Marcos, PE

      San Marcos Station46°
      Updated: 10:47 AM GMT-05:00 on October 25, 2026 (GMT -5)
      7 minutes ago
      55°
      38°
      46
      Feels Like 43
      Cloudy
      N
      9
      Gusts 18 mph
      Similar temperature is expected today
      Wundermap

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       Wundermap
      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
        Sun 10/25
        High 55°f
         88% Precip. / 0.11 in
        Cloudy with rain developing this afternoon. High near 55F. Winds NNE at 5 to 10 mph. Chance of rain 90%.
        Tonight
        Sun 10/25
        Low 38°f
         24% Precip. / 0 in
        Overcast. Low 38F. Winds light and variable.
        Tomorrow
        Mon 10/26
        High 55°f36°f
         82% Precip. / 0.22 in
        Rain showers in the morning with numerous thunderstorms developing in the afternoon. High near 55F. Winds NE at 5 to 10 mph. Chance of rain 80%.
        Hourly Forecast
        Now
        49°
        11AM
        50°
        12PM
        51°
        1PM
        40%
        52°
        2PM
        73%
        51°
        3PM
        86%
        50°
        4PM
        91%
        48°
        5PM
        85%
        47°
        6PM
        39%
        46°
        6:04PM
        Sunset
        7PM
        37%
        44°
        8PM
        43°
        9PM
        42°
        10PM
        41°
        11PM
        41°
        12AM
        41°
        1AM
        40°
        2AM
        31%
        40°
        3AM
        40°
        4AM
        39°
        5AM
        39°
        5:39AM
        Sunrise
        6AM
        39°
        7AM
        41°
        8AM
        45°
        9AM
        48°
        10AM
        51°
        Precipitation
        91%
        Rain likely around 1:45 PM
        Pollen
        None
        Air Quality
        36
        Good
        UV Index
        10
        Very High
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point33°F
        5. Humidity 54%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         SPHZ Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 55°F -°F -°F
        4. Low 38°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.13 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 55°F -°F -°F
        4. Low 38°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 5:40 AM 6:04 PM
        3. Civil Twilight 5:18 AM 6:25 PM
        4. Nautical Twilight 4:53 AM 6:50PM
        5. Astronomical Twilight 4:28 AM 7:16 PM
        1. Length of Visible Light 13h 6m
        2. Length of Day 12h 23m
        3. Tomorrow will be 29 seconds longer
        1. Moon 5:45 PM 4:58 AM
        2. Full99% of the Moon is Illuminated
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
        Nov 17
        Waxing Half First Qtr
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