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      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Thu, Oct 22, 2026
      Tomorrow
      Thu 10/22
      High 81°f67°f
      90% Precip. / 0.55 in
      Thunderstorms likely. High 81F. Winds W at 5 to 10 mph. Chance of rain 90%.
      Tomorrow night
      Thu 10/22
      Low 67°f
      68% Precip. / 0.04 in
      Thunderstorms in the evening will give way to cloudy skies overnight. Low 67F. Winds light and variable. Chance of rain 70%.
      Sunrise 6:00 AM
      Sunset 5:43 PM
      Moonrise 3:17 PM
      Moonset 2:43 AM
      Waxing Gibbous, 87% visible
      Hourly Forecast
      12AM
      70°
      1AM
      69°
      2AM
      69°
      3AM
      68°
      4AM
      68°
      5AM
      68°
      6AM
      68°
      6:00AM
      Sunrise
      7AM
      69°
      8AM
      73°
      9AM
      77°
      10AM
      78°
      11AM
      31%
      80°
      12PM
      65%
      80°
      1PM
      75%
      79°
      2PM
      87%
      79°
      3PM
      89%
      78°
      4PM
      90%
      76°
      5PM
      79%
      74°
      5:43PM
      Sunset
      6PM
      78%
      74°
      7PM
      68%
      73°
      8PM
      32%
      72°
      9PM
      71°
      10PM
      71°
      11PM
      71°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Cloudy
      70°F 72°F 24% 0in 88% 67°F 91% 1 mph NE 29.94in
      1:00 am
      Mostly Cloudy
      69°F 71°F 23% 0in 79% 66°F 90% 2 mph N 29.93in
      2:00 am
      Mostly Cloudy
      69°F 70°F 14% 0in 74% 66°F 90% 2 mph E 29.9in
      3:00 am
      Mostly Cloudy
      68°F 70°F 5% 0in 69% 65°F 90% 2 mph ENE 29.89in
      4:00 am
      Mostly Cloudy
      68°F 70°F 5% 0in 63% 65°F 88% 2 mph NNE 29.89in
      5:00 am
      Mostly Cloudy
      68°F 69°F 5% 0in 70% 64°F 88% 2 mph NE 29.9in
      6:00 am
      Mostly Cloudy
      68°F 69°F 6% 0in 63% 64°F 87% 3 mph NE 29.91in
      7:00 am
      Mostly Cloudy
      69°F 70°F 6% 0in 61% 65°F 87% 2 mph ENE 29.93in
      8:00 am
      Mostly Cloudy
      73°F 75°F 6% 0in 63% 68°F 84% 2 mph NNE 29.94in
      9:00 am
      Mostly Cloudy
      77°F 80°F 5% 0in 63% 68°F 76% 2 mph WNW 29.95in
      10:00 am
      Partly Cloudy
      78°F 82°F 18% 0in 59% 69°F 73% 4 mph WSW 29.95in
      11:00 am
      Few Showers
      80°F 84°F 31% 0.02in 77% 70°F 72% 5 mph WSW 29.93in
      12:00 pm
      Thunderstorms
      80°F 85°F 65% 0.02in 85% 71°F 73% 5 mph WSW 29.91in
      1:00 pm
      Thunderstorms
      79°F 84°F 75% 0.03in 91% 71°F 77% 6 mph WSW 29.89in
      2:00 pm
      Thunderstorms
      79°F 84°F 87% 0.06in 100% 71°F 78% 6 mph WSW 29.88in
      3:00 pm
      Thunderstorms
      78°F 82°F 89% 0.11in 100% 71°F 81% 6 mph SW 29.87in
      4:00 pm
      Thunderstorms
      76°F 80°F 90% 0.13in 100% 71°F 86% 5 mph WSW 29.88in
      5:00 pm
      Thunderstorms
      74°F 77°F 79% 0.11in 100% 70°F 87% 3 mph SW 29.9in
      6:00 pm
      Thunderstorms
      74°F 77°F 78% 0.06in 100% 70°F 89% 2 mph NNE 29.91in
      7:00 pm
      Thunderstorms
      73°F 75°F 68% 0.03in 93% 70°F 89% 1 mph NE 29.93in
      8:00 pm
      Few Showers
      72°F 74°F 32% 0.01in 91% 69°F 90% 1 mph NNE 29.95in
      9:00 pm
      Cloudy
      71°F 74°F 20% 0in 88% 69°F 91% 1 mph NNE 29.96in
      10:00 pm
      Cloudy
      71°F 74°F 24% 0in 84% 68°F 90% 1 mph NE 29.96in
      11:00 pm
      Mostly Cloudy
      71°F 73°F 19% 0in 68% 68°F 90% 2 mph NE 29.95in
      Additional Conditions
      1. Pressure 29.94 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point61°F
      5. Humidity 92%
      6. Rainfall 0.08 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 66°F -°F -°F
      5. Rain/Snow Depth
      6. Precipitation 1.31 in - in -
      7. Snow 0 in - in -
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 81°F -°F -°F
      4. Low 67°F -°F -°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:00 AM 5:43 PM
      3. Civil Twilight 5:38 AM 6:05 PM
      4. Nautical Twilight 5:13 AM 6:30PM
      5. Astronomical Twilight 4:48 AM 6:55 PM
      1. Length of Visible Light 12h 26m
      2. Length of Day 11h 43m
      3. Tomorrow will be 46 seconds shorter
      1. Moon 2:40 PM 1:53 AM
      2. Waxing Gibbous79% of the Moon is Illuminated
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 9
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary