My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
        More Settings
      Elev 1432 ft, 14.973 °N 91.896 °W

      San Marcos, GT

      Updated: 2:54 AM CST on August 19, 2026 (GMT -6)
      2 minutes ago
      82°
      66°
      64
      Feels Like 64
      Mostly Cloudy
      N
      4
      Higher temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Wed 08/19
      Low 66°f
      2% Precip. / 0 in
      Cloudy. Low 66F. Winds light and variable.
      Tomorrow
      Thu 08/20
      High 81°f
      97% Precip. / 0.57 in
      Thunderstorms. High 81F. Winds W at 5 to 10 mph. Chance of rain 100%.
      Tomorrow night
      Thu 08/20
      Low 66°f
      17% Precip. / 0 in
      Cloudy skies early, then partly cloudy after midnight. Hazy. Low 66F. Winds light and variable.
      Hourly Forecast
      Now
      65°
      3AM
      65°
      4AM
      65°
      5AM
      65°
      5:54AM
      Sunrise
      6AM
      66°
      7AM
      67°
      8AM
      71°
      9AM
      75°
      10AM
      79°
      11AM
      32%
      81°
      12PM
      61%
      81°
      1PM
      95%
      80°
      2PM
      97%
      80°
      3PM
      98%
      79°
      4PM
      95%
      78°
      5PM
      74%
      77°
      6PM
      40%
      76°
      6:28PM
      Sunset
      7PM
      74°
      8PM
      72°
      9PM
      71°
      10PM
      71°
      11PM
      70°
      12AM
      69°
      1AM
      68°
      2AM
      68°
      Additional Conditions
      1. Pressure 29.94 in
      2. Visibility 9 miles
      3. Clouds Cloudy
      4. Dew Point61°F
      5. Humidity 85%
      6. Rainfall 0.37 in
      7. Snow Depth 0 in
      Top Video Stories
      Multiple Rounds Of Rain, Flooding Possible Across South Wintry Mix To Impact Friday AM, PM Commutes For Mid-Atlantic Unseasonably Warm Weather Is Here; See How Long It Lasts
      Astronomy
      1. Sun Rise Set
      2. Actual Time 5:53 AM 6:28 PM
      3. Civil Twilight 5:31 AM 6:50 PM
      4. Nautical Twilight 5:06 AM 7:16PM
      5. Astronomical Twilight 4:39 AM 7:42 PM
      1. Length of Visible Light 13h 18m
      2. Length of Day 12h 34m
      3. Tomorrow will be 46 seconds shorter
      1. Moon 11:57 AM 11:23 PM
      2. First quarter46% of the Moon is Illuminated
      Aug 26
      Full Moon
      Sep 3
      Waning Half Last Qtr
      Sep 16
      Waxing Half First Qtr
      -
      -
      MGSM Station History
      Almanac for
      1. Forecast Average Record
      2. Temperature
      3. High 82°F -°F -°F
      4. Low 66°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 81°F -°F -°F
      4. Low 66°F -°F -°F
      Precipitation
      Loading…
      Loading…
      Weather Alerts
      Loading…
      essentialaccessibility.com
      We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
      Glossary