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      Elev 4671 ft, 9.532 °S 77.072 °W

      San Marcos, PE

      San Marcos Station37°
      Updated: 2:13 AM GMT-05:00 on October 13, 2026 (GMT -5)
      52 seconds ago
      62°
      38°
      37
      Feels Like 37
      Mostly Cloudy
      N
      4
      Similar temperature is expected today
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      50
      50
      575
      90
      50
      7
      0 mph
      50
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      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Mon 10/12
        Low 34°f
         3% Precip. / 0 in
        Areas of fog. Low 34F. Winds light and variable.
        Tomorrow
        Tue 10/13
        High 60°f
         84% Precip. / 0.21 in
        Partly cloudy early with thunderstorms becoming likely during the afternoon. High around 60F. Winds NE at 5 to 10 mph. Chance of rain 80%.
        Tomorrow night
        Tue 10/13
        Low 37°f
         24% Precip. / 0 in
        Cloudy. Low 37F. Winds light and variable.
        Hourly Forecast
        Now
        32°
        3AM
        3%
        31°
        4AM
        3%
        31°
        5AM
        3%
        30°
        5:45AM
        Sunrise
        6AM
        30°
        7AM
        34°
        8AM
        39°
        9AM
        44°
        10AM
        54°
        11AM
        56°
        12PM
        59°
        1PM
        59°
        2PM
        53%
        58°
        3PM
        84%
        57°
        4PM
        82%
        54°
        5PM
        69%
        51°
        6PM
        44%
        48°
        6:03PM
        Sunset
        7PM
        31%
        46°
        8PM
        44°
        9PM
        43°
        10PM
        42°
        11PM
        42°
        12AM
        41°
        1AM
        40°
        2AM
        39°
        Precipitation
        84%
        Pollen
        None
        Air Quality
        43
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.97 in
        2. Visibility 2.9 miles
        3. Clouds Mostly Cloudy
        4. Dew Point29°F
        5. Humidity 89%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         SPHZ Station History
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 59°F -°F -°F
        4. Low 34°F -°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.22 in - in -
        7. Snow 0 in - in -
        Almanac for
        1. Forecast Average Record
        2. Temperature
        3. High 57°F -°F -°F
        4. Low 37°F -°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 5:45 AM 6:03 PM
        3. Civil Twilight 5:24 AM 6:24 PM
        4. Nautical Twilight 4:59 AM 6:49PM
        5. Astronomical Twilight 4:35 AM 7:13 PM
        1. Length of Visible Light 12h 59m
        2. Length of Day 12h 17m
        3. Tomorrow will be 31 seconds longer
        1. Moon 7:43 AM 8:43 PM
        2. Waxing Crescent8% of the Moon is Illuminated
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
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