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      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Mon, Sep 28, 2026
      Tonight
      Mon 09/28
      Low 65°f
      60% Precip. / 0.01 in
      Thunderstorms this evening followed by a few showers overnight. Hazy. Low near 65F. Winds light and variable. Chance of rain 60%.
      Tomorrow
      Tue 09/29
      High 78°f
      98% Precip. / 0.72 in
      Thunderstorms likely. High 78F. Winds W at 5 to 10 mph. Chance of rain 100%.
      Sunrise 5:57 AM
      Sunset 5:59 PM
      Moonrise 7:26 PM
      Moonset 7:37 AM
      Waning Gibbous, 93% visible
      Hourly Forecast
      Now
      71°
      4PM
      37%
      71°
      5PM
      70°
      5:59PM
      Sunset
      6PM
      70°
      7PM
      70°
      8PM
      69°
      9PM
      68°
      10PM
      68°
      11PM
      68°
      12AM
      67°
      1AM
      66°
      2AM
      66°
      3AM
      66°
      4AM
      31%
      66°
      5AM
      66°
      5:57AM
      Sunrise
      6AM
      66°
      7AM
      66°
      8AM
      70°
      9AM
      73°
      10AM
      75°
      11AM
      42%
      77°
      12PM
      71%
      77°
      1PM
      92%
      77°
      2PM
      98%
      76°
      3PM
      91%
      75°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      4:00 pm
      Showers
      71°F 71°F 37% 0in 84% 68°F 90% 4 mph SW 29.89in
      5:00 pm
      Cloudy
      70°F 70°F 15% 0in 86% 68°F 91% 3 mph WSW 29.9in
      6:00 pm
      Cloudy
      70°F 70°F 15% 0in 89% 67°F 91% 2 mph ENE 29.92in
      7:00 pm
      Cloudy
      70°F 70°F 14% 0in 94% 67°F 88% 1 mph NNE 29.93in
      8:00 pm
      Cloudy
      69°F 69°F 14% 0in 92% 65°F 88% 1 mph NE 29.94in
      9:00 pm
      Cloudy
      68°F 68°F 14% 0in 88% 65°F 90% 1 mph NE 29.96in
      10:00 pm
      Cloudy
      68°F 68°F 11% 0in 94% 65°F 89% 1 mph NNE 29.97in
      11:00 pm
      Cloudy
      68°F 69°F 13% 0in 93% 64°F 89% 1 mph NE 29.97in
      Additional Conditions
      1. Pressure 29.89 in
      2. Visibility 2.1 miles
      3. Clouds Cloudy
      4. Dew Point68°F
      5. Humidity 90%
      6. Rainfall 1.05 in
      7. Snow Depth 0 in
      MGSM Station History
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 75°F -°F -°F
      4. Low 62°F -°F -°F
      5. Rain/Snow Depth
      6. Precipitation 0.01 in - in -
      7. Snow 0 in - in -
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 78°F -°F -°F
      4. Low 65°F -°F -°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 5:57 AM 5:59 PM
      3. Civil Twilight 5:35 AM 6:20 PM
      4. Nautical Twilight 5:10 AM 6:45PM
      5. Astronomical Twilight 4:45 AM 7:10 PM
      1. Length of Visible Light 12h 44m
      2. Length of Day 12h 1m
      3. Tomorrow will be 50 seconds shorter
      1. Moon 7:26 PM 7:37 AM
      2. Waning Gibbous93% of the Moon is Illuminated
      Oct 3
      Waning Half Last Qtr
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nearby Weather Stations
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      Elev.
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