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      Elev 1577 ft, 9.675 °N 84.018 °W

      San Marcos, CR

      San Marcos Station62°
      Updated: 9:49 PM CST on September 19, 2026 (GMT -6)
      27 seconds ago
      71°
      57°
      62
      Feels Like 62
      Cloudy
      N
      5
      Lower temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Sat 09/19
        Low 57°f
         66% Precip. / 0.04 in
        Cloudy with occasional rain showers. Low 57F. Winds E at 5 to 10 mph. Chance of rain 70%.
        Tomorrow
        Sun 09/20
        High 67°f
         93% Precip. / 0.81 in
        Thunderstorms likely. High 67F. Winds SE at 10 to 15 mph. Chance of rain 90%.
        Tomorrow night
        Sun 09/20
        Low 58°f
         39% Precip. / 0.08 in
        Rain showers in the evening becoming more intermittent overnight. Low 58F. Winds ESE at 5 to 10 mph. Chance of rain 40%.
        Hourly Forecast
        Now
        66°
        10PM
        55%
        65°
        11PM
        39%
        65°
        12AM
        65°
        1AM
        39%
        64°
        2AM
        36%
        64°
        3AM
        64°
        4AM
        63°
        5AM
        58°
        5:25AM
        Sunrise
        6AM
        59°
        7AM
        61°
        8AM
        63°
        9AM
        36%
        65°
        10AM
        50%
        67°
        11AM
        61%
        67°
        12PM
        93%
        67°
        1PM
        91%
        67°
        2PM
        90%
        65°
        3PM
        83%
        63°
        4PM
        67%
        63°
        5PM
        63%
        62°
        5:33PM
        Sunset
        6PM
        54%
        61°
        7PM
        40%
        61°
        8PM
        31%
        60°
        9PM
        60°
        Precipitation
        93%
        Rain continuing through 2 AM
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        18
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 4 miles
        3. Clouds Cloudy
        4. Dew Point61°F
        5. Humidity 85%
        6. Rainfall 0.69 in
        7. Snow Depth 0 in
         MRQP Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 86°F -°F
        4. Low 57°F 62°F -°F
        5. Rain/Snow Depth
        6. Precipitation 0.04 in 0.39 in -
        7. Snow 0 in - in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 86°F -°F
        4. Low 57°F 62°F -°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 5:25 AM 5:33 PM
        3. Civil Twilight 5:04 AM 5:54 PM
        4. Nautical Twilight 4:40 AM 6:18PM
        5. Astronomical Twilight 4:15 AM 6:42 PM
        1. Length of Visible Light 12h 49m
        2. Length of Day 12h 7m
        3. Tomorrow will be 32 seconds shorter
        1. Moon 1:20 PM 12:15 AM
        2. Waxing Gibbous68% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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