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      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Mon, Oct 19, 2026
      Monday
      Mon 10/19
      High 81°f
      60% Precip. / 0.41 in
      Rain showers in the morning with thunderstorms developing in the afternoon. High 81F. Winds light and variable. Chance of rain 60%.
      Monday night
      Mon 10/19
      Low 66°f
      60% Precip. / 0.13 in
      Light rain transitioning to a few showers late. Low 66F. Winds light and variable. Chance of rain 60%.
      Sunrise 5:59 AM
      Sunset 5:44 PM
      Moonrise 1:23 PM
      Moonset 12:11 AM
      Waxing Gibbous, 60% visible
      Hourly Forecast
      12AM
      50%
      69°
      1AM
      49%
      69°
      2AM
      48%
      69°
      3AM
      43%
      68°
      4AM
      43%
      68°
      5AM
      43%
      68°
      6AM
      45%
      68°
      6:00AM
      Sunrise
      7AM
      47%
      68°
      8AM
      50%
      71°
      9AM
      53%
      75°
      10AM
      54%
      77°
      11AM
      55%
      79°
      12PM
      60%
      80°
      1PM
      60%
      80°
      2PM
      60%
      80°
      3PM
      60%
      78°
      4PM
      60%
      76°
      5PM
      60%
      75°
      5:45PM
      Sunset
      6PM
      60%
      73°
      7PM
      60%
      72°
      8PM
      60%
      71°
      9PM
      60%
      70°
      10PM
      60%
      70°
      11PM
      58%
      70°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Showers
      69°F 71°F 50% 0.01in 84% 66°F 90% 1 mph NNE 29.98in
      1:00 am
      Showers
      69°F 70°F 49% 0.01in 82% 66°F 90% 1 mph NNW 29.98in
      2:00 am
      Showers
      69°F 70°F 48% 0.01in 80% 65°F 89% 1 mph E 29.97in
      3:00 am
      Showers
      68°F 69°F 43% 0.01in 78% 64°F 89% 2 mph NE 29.96in
      4:00 am
      Showers
      68°F 69°F 43% 0.01in 77% 65°F 89% 2 mph NNE 29.96in
      5:00 am
      Showers
      68°F 69°F 43% 0.01in 76% 65°F 90% 2 mph NNE 29.96in
      6:00 am
      Showers
      68°F 69°F 45% 0.01in 76% 65°F 89% 2 mph NE 29.96in
      7:00 am
      Showers
      68°F 70°F 47% 0.01in 75% 65°F 89% 1 mph NE 29.96in
      8:00 am
      Showers
      71°F 73°F 50% 0.01in 75% 66°F 84% 2 mph NNE 29.96in
      9:00 am
      Showers
      75°F 76°F 53% 0.02in 75% 67°F 78% 2 mph NNE 29.96in
      10:00 am
      Showers
      77°F 81°F 54% 0.02in 75% 68°F 73% 2 mph N 29.96in
      11:00 am
      Showers
      79°F 83°F 55% 0.02in 75% 69°F 70% 3 mph SW 29.96in
      12:00 pm
      Thunderstorms
      80°F 84°F 60% 0.06in 75% 69°F 70% 3 mph WSW 29.95in
      1:00 pm
      Thunderstorms
      80°F 84°F 60% 0.05in 76% 69°F 69% 5 mph SW 29.95in
      2:00 pm
      Thunderstorms
      80°F 84°F 60% 0.05in 78% 69°F 70% 5 mph SW 29.94in
      3:00 pm
      Thunderstorms
      78°F 82°F 60% 0.05in 81% 69°F 74% 6 mph SW 29.93in
      4:00 pm
      Thunderstorms
      76°F 80°F 60% 0.04in 84% 69°F 78% 4 mph WSW 29.92in
      5:00 pm
      Thunderstorms
      75°F 77°F 60% 0.04in 87% 69°F 83% 3 mph W 29.91in
      6:00 pm
      Thunderstorms
      73°F 75°F 60% 0.02in 87% 69°F 87% 2 mph NNE 29.91in
      7:00 pm
      Thunderstorms
      72°F 74°F 60% 0.02in 87% 68°F 88% 1 mph NE 29.92in
      8:00 pm
      Light Rain
      71°F 73°F 60% 0.02in 86% 68°F 89% 1 mph NNE 29.93in
      9:00 pm
      Light Rain
      70°F 72°F 60% 0.02in 85% 67°F 90% 1 mph NNE 29.94in
      10:00 pm
      Light Rain
      70°F 72°F 60% 0.02in 83% 67°F 89% 1 mph NE 29.95in
      11:00 pm
      Showers
      70°F 71°F 58% 0.02in 82% 66°F 89% 1 mph NE 29.96in
      Additional Conditions
      1. Pressure 29.89 in
      2. Visibility 1.9 miles
      3. Clouds Cloudy
      4. Dew Point68°F
      5. Humidity 86%
      6. Rainfall 0.05 in
      7. Snow Depth 0 in
      MGSM Station History
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 79°F -°F -°F
      4. Low 65°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 80°F -°F -°F
      4. Low 67°F -°F -°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 5:58 AM 5:49 PM
      3. Civil Twilight 5:37 AM 6:11 PM
      4. Nautical Twilight 5:12 AM 6:36PM
      5. Astronomical Twilight 4:47 AM 7:01 PM
      1. Length of Visible Light 12h 34m
      2. Length of Day 11h 51m
      3. Tomorrow will be 48 seconds shorter
      1. Moon 6:44 AM 6:29 PM
      2. Waxing Crescent0% 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
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
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      Glossary