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      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Tue, Oct 13, 2026
      Tuesday
      Tue 10/13
      High 81°f
      89% Precip. / 0.44 in
      Thunderstorms likely. High 81F. Winds WSW at 5 to 10 mph. Chance of rain 90%.
      Tuesday night
      Tue 10/13
      Low 66°f
      62% Precip. / 0.04 in
      Thunderstorms in the evening will give way to cloudy skies overnight. Hazy. Low 66F. Winds light and variable. Chance of rain 60%.
      Sunrise 5:58 AM
      Sunset 5:48 PM
      Moonrise 8:30 AM
      Moonset 7:56 PM
      Waxing Crescent, 8% visible
      Hourly Forecast
      12AM
      69°
      1AM
      68°
      2AM
      68°
      3AM
      67°
      4AM
      67°
      5AM
      67°
      5:58AM
      Sunrise
      6AM
      67°
      7AM
      68°
      8AM
      73°
      9AM
      77°
      10AM
      79°
      11AM
      46%
      80°
      12PM
      86%
      80°
      1PM
      86%
      80°
      2PM
      78%
      80°
      3PM
      90%
      78°
      4PM
      89%
      77°
      5PM
      82%
      75°
      5:48PM
      Sunset
      6PM
      69%
      74°
      7PM
      63%
      73°
      8PM
      30%
      72°
      9PM
      71°
      10PM
      71°
      11PM
      30%
      70°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Mostly Cloudy
      69°F 70°F 15% 0in 65% 65°F 87% 2 mph NNE 29.95in
      1:00 am
      Mostly Cloudy
      68°F 69°F 10% 0in 67% 64°F 87% 2 mph NNW 29.93in
      2:00 am
      Mostly Cloudy
      68°F 69°F 6% 0in 76% 63°F 87% 3 mph ENE 29.91in
      3:00 am
      Mostly Cloudy
      67°F 68°F 5% 0in 73% 63°F 87% 3 mph NE 29.9in
      4:00 am
      Partly Cloudy
      67°F 68°F 5% 0in 57% 63°F 86% 3 mph NNE 29.9in
      5:00 am
      Partly Cloudy
      67°F 68°F 4% 0in 52% 62°F 85% 3 mph NNE 29.9in
      6:00 am
      Partly Cloudy
      67°F 68°F 6% 0in 53% 62°F 85% 3 mph NE 29.91in
      7:00 am
      Partly Cloudy
      68°F 69°F 6% 0in 52% 64°F 85% 3 mph NE 29.93in
      8:00 am
      Partly Cloudy
      73°F 75°F 4% 0in 56% 67°F 80% 2 mph NNE 29.93in
      9:00 am
      Partly Cloudy
      77°F 80°F 14% 0in 42% 67°F 73% 2 mph NNE 29.93in
      10:00 am
      Partly Cloudy
      79°F 83°F 24% 0in 43% 68°F 70% 3 mph W 29.93in
      11:00 am
      Showers
      80°F 84°F 46% 0.04in 66% 70°F 71% 4 mph SW 29.92in
      12:00 pm
      Thunderstorms
      80°F 85°F 86% 0.09in 91% 71°F 72% 5 mph SW 29.9in
      1:00 pm
      Thunderstorms
      80°F 85°F 86% 0.05in 82% 71°F 73% 5 mph SW 29.89in
      2:00 pm
      Thunderstorms
      80°F 85°F 78% 0.04in 83% 71°F 74% 6 mph SW 29.87in
      3:00 pm
      Thunderstorms
      78°F 83°F 90% 0.05in 85% 71°F 78% 6 mph SW 29.86in
      4:00 pm
      Thunderstorms
      77°F 81°F 89% 0.09in 99% 71°F 81% 5 mph SW 29.86in
      5:00 pm
      Thunderstorms
      75°F 80°F 82% 0.04in 94% 71°F 85% 3 mph SW 29.89in
      6:00 pm
      Thunderstorms
      74°F 76°F 69% 0.03in 91% 70°F 86% 2 mph NE 29.89in
      7:00 pm
      Thunderstorms
      73°F 75°F 63% 0.02in 89% 69°F 88% 1 mph NE 29.91in
      8:00 pm
      Few Showers
      72°F 74°F 30% 0.01in 91% 68°F 88% 2 mph NNE 29.93in
      9:00 pm
      Cloudy
      71°F 73°F 24% 0in 91% 68°F 89% 1 mph NNE 29.95in
      10:00 pm
      Cloudy
      71°F 73°F 23% 0in 89% 67°F 87% 2 mph ENE 29.95in
      11:00 pm
      Few Showers
      70°F 72°F 30% 0.01in 81% 66°F 88% 2 mph NE 29.95in
      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
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      Heat Index
      Dew Point
      Humidity
      Wind
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      Elev.
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      Glossary