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      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Thu, Oct 22, 2026
      Thursday
      Thu 10/22
      High 80°f
      88% Precip. / 0.34 in
      Rain showers in the morning with thunderstorms developing in the afternoon. High around 80F. Winds WSW at 5 to 10 mph. Chance of rain 90%.
      Thursday night
      Thu 10/22
      Low 66°f
      75% Precip. / 0.09 in
      Rain showers early with mostly cloudy conditions late. Low 66F. Winds light and variable. Chance of rain 80%.
      Sunrise 6:00 AM
      Sunset 5:43 PM
      Moonrise 3:17 PM
      Moonset 2:43 AM
      Waxing Gibbous, 87% visible
      Hourly Forecast
      12AM
      31%
      70°
      1AM
      70°
      2AM
      69°
      3AM
      68°
      4AM
      68°
      5AM
      68°
      6AM
      68°
      6:00AM
      Sunrise
      7AM
      69°
      8AM
      72°
      9AM
      34%
      76°
      10AM
      37%
      78°
      11AM
      42%
      79°
      12PM
      88%
      80°
      1PM
      88%
      80°
      2PM
      87%
      79°
      3PM
      87%
      79°
      4PM
      86%
      77°
      5PM
      86%
      76°
      5:43PM
      Sunset
      6PM
      76%
      75°
      7PM
      75%
      73°
      8PM
      58%
      72°
      9PM
      50%
      71°
      10PM
      48%
      71°
      11PM
      46%
      70°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Few Showers
      70°F 72°F 31% 0.01in 67% 67°F 90% 1 mph NE 29.94in
      1:00 am
      Mostly Cloudy
      70°F 71°F 24% 0in 67% 67°F 90% 2 mph N 29.93in
      2:00 am
      Mostly Cloudy
      69°F 71°F 24% 0in 70% 66°F 90% 2 mph ENE 29.92in
      3:00 am
      Mostly Cloudy
      68°F 70°F 22% 0in 70% 65°F 90% 2 mph ENE 29.91in
      4:00 am
      Mostly Cloudy
      68°F 70°F 22% 0in 69% 65°F 90% 2 mph NE 29.91in
      5:00 am
      Mostly Cloudy
      68°F 69°F 21% 0in 70% 65°F 90% 2 mph NE 29.91in
      6:00 am
      Mostly Cloudy
      68°F 69°F 18% 0in 70% 65°F 90% 2 mph NE 29.92in
      7:00 am
      Mostly Cloudy
      69°F 71°F 17% 0in 66% 66°F 90% 2 mph NE 29.93in
      8:00 am
      Mostly Cloudy
      72°F 74°F 16% 0in 61% 68°F 85% 1 mph NNE 29.94in
      9:00 am
      Few Showers
      76°F 80°F 34% 0.01in 58% 69°F 79% 2 mph W 29.95in
      10:00 am
      Showers
      78°F 82°F 37% 0.01in 62% 70°F 76% 3 mph WSW 29.94in
      11:00 am
      Showers
      79°F 84°F 42% 0.02in 68% 70°F 73% 3 mph WSW 29.93in
      12:00 pm
      Thunderstorms
      80°F 84°F 88% 0.04in 75% 71°F 74% 4 mph WSW 29.91in
      1:00 pm
      Thunderstorms
      80°F 84°F 88% 0.05in 76% 71°F 74% 5 mph SW 29.89in
      2:00 pm
      Thunderstorms
      79°F 84°F 87% 0.05in 78% 71°F 74% 6 mph SW 29.87in
      3:00 pm
      Thunderstorms
      79°F 83°F 87% 0.05in 79% 70°F 76% 6 mph SSW 29.86in
      4:00 pm
      Thunderstorms
      77°F 82°F 86% 0.04in 79% 70°F 79% 5 mph SW 29.86in
      5:00 pm
      Thunderstorms
      76°F 80°F 86% 0.04in 79% 70°F 83% 3 mph SW 29.87in
      6:00 pm
      Thunderstorms
      75°F 77°F 76% 0.03in 78% 70°F 87% 2 mph NE 29.89in
      7:00 pm
      Thunderstorms
      73°F 75°F 75% 0.03in 76% 69°F 87% 1 mph NE 29.91in
      8:00 pm
      Showers
      72°F 75°F 58% 0.03in 74% 69°F 89% 1 mph NE 29.93in
      9:00 pm
      Showers
      71°F 74°F 50% 0.01in 72% 68°F 90% 1 mph NE 29.95in
      10:00 pm
      Showers
      71°F 73°F 48% 0.01in 69% 68°F 89% 1 mph NE 29.95in
      11:00 pm
      Showers
      70°F 72°F 46% 0.01in 65% 67°F 88% 2 mph NE 29.95in
      Additional Conditions
      1. Pressure 29.96 in
      2. Visibility 4 miles
      3. Clouds Cloudy
      4. Dew Point65°F
      5. Humidity 93%
      6. Rainfall 0 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 67°F -°F -°F
      5. Rain/Snow Depth
      6. Precipitation 0 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 5:59 AM 5:46 PM
      3. Civil Twilight 5:37 AM 6:07 PM
      4. Nautical Twilight 5:12 AM 6:32PM
      5. Astronomical Twilight 4:47 AM 6:57 PM
      1. Length of Visible Light 12h 29m
      2. Length of Day 11h 46m
      3. Tomorrow will be 47 seconds shorter
      1. Moon 11:57 AM 11:19 PM
      2. Waxing Crescent41% 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.
      Updated
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      Level Access
      Glossary