Member Settings
      Elev 236 ft, 16.734 °N 99.129 °W

      San Marcos, MX

      Tue, Oct 20, 2026
      Today
      Wed 10/21
      High 91°f
      54% Precip. / 0.07 in
      Mixed clouds and sun this morning. Scattered thunderstorms developing this afternoon. High 91F. Winds SW at 5 to 10 mph. Chance of rain 50%.
      Tonight
      Wed 10/21
      Low 75°f
      57% Precip. / 0.06 in
      Scattered thunderstorms during the evening. Cloudy skies after midnight. Low around 75F. Winds light and variable. Chance of rain 60%.
      Sunrise 6:31 AM
      Sunset 6:12 PM
      Moonrise 2:36 PM
      Moonset 1:31 AM
      Waxing Gibbous, 70% visible
      Hourly Forecast
      Now
      88°
      11AM
      90°
      12PM
      91°
      1PM
      91°
      2PM
      91°
      3PM
      90°
      4PM
      89°
      5PM
      34%
      87°
      6PM
      55%
      85°
      6:12PM
      Sunset
      7PM
      57%
      83°
      8PM
      43%
      81°
      9PM
      80°
      10PM
      79°
      11PM
      78°
      12AM
      78°
      1AM
      77°
      2AM
      77°
      3AM
      77°
      4AM
      77°
      5AM
      76°
      6AM
      76°
      6:31AM
      Sunrise
      7AM
      77°
      8AM
      80°
      9AM
      83°
      10AM
      87°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      11:00 am
      Partly Cloudy
      90°F 105°F 2% 0in 59% 79°F 70% 4 mph SW 29.83in
      12:00 pm
      Mostly Cloudy
      91°F 106°F 2% 0in 60% 78°F 67% 5 mph SSW 29.81in
      1:00 pm
      Partly Cloudy
      91°F 108°F 2% 0in 59% 79°F 68% 6 mph SSW 29.79in
      2:00 pm
      Partly Cloudy
      91°F 108°F 3% 0in 39% 79°F 69% 7 mph SSW 29.76in
      3:00 pm
      Partly Cloudy
      90°F 108°F 6% 0in 38% 80°F 72% 7 mph SSW 29.75in
      4:00 pm
      Mostly Cloudy
      89°F 104°F 13% 0in 63% 80°F 75% 6 mph SW 29.75in
      5:00 pm
      Isolated Thunderstorms
      87°F 101°F 34% 0.01in 80% 79°F 77% 5 mph SW 29.76in
      6:00 pm
      Scattered Thunderstorms
      85°F 98°F 55% 0.05in 95% 79°F 83% 4 mph SW 29.79in
      7:00 pm
      Scattered Thunderstorms
      83°F 94°F 57% 0.04in 88% 79°F 89% 2 mph W 29.81in
      8:00 pm
      Showers
      81°F 91°F 43% 0.02in 95% 79°F 94% 2 mph NW 29.84in
      9:00 pm
      Cloudy
      80°F 89°F 24% 0in 86% 79°F 96% 2 mph NNW 29.86in
      10:00 pm
      Mostly Cloudy
      79°F 87°F 18% 0in 78% 78°F 98% 2 mph N 29.86in
      11:00 pm
      Mostly Cloudy
      78°F 87°F 14% 0in 77% 78°F 100% 3 mph N 29.86in
      Additional Conditions
      1. Pressure 29.84 in
      2. Visibility 10 miles
      3. Clouds Mostly Cloudy
      4. Dew Point78°F
      5. Humidity 73%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      MMAA Station History
      Almanac for October 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 91°F 92°F 95°F 2010
      4. Low 76°F 75°F 72°F 2014
      5. Rain/Snow Depth
      6. Precipitation 0.14 in 0.22 in -
      7. Snow 0 in - in -
      Almanac for October 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 91°F 92°F 95°F
      4. Low 75°F 75°F 71°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:31 AM 6:12 PM
      3. Civil Twilight 6:09 AM 6:34 PM
      4. Nautical Twilight 5:44 AM 7:00PM
      5. Astronomical Twilight 5:19 AM 7:25 PM
      1. Length of Visible Light 12h 25m
      2. Length of Day 11h 41m
      3. Tomorrow will be 53 seconds shorter
      1. Moon 2:36 PM 1:31 AM
      2. Waxing Gibbous70% 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
      Loading nearby stations…
      Level Access
      Glossary