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      Extreme Heat Warning
      until 8:00 PM PDT
      Elev 220 ft, 33.124 °N 117.175 °W

      San Marcos, CA

      San Marcos Station94°
      Updated: 8:51 AM PDT on October 5, 2026 (GMT -7)
      8 minutes ago
      98°
      72°
      94
      Feels Like 94
      Sunny
      N
      1
      Similar temperature is expected today
      Wundermap
      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
        Today
        Tue 10/06
        High 98°f
         0% Precip. / 0 in
        Plentiful sunshine. Hot. High 98F. Winds WNW at 10 to 15 mph.
        Tonight
        Tue 10/06
        Low 72°f
         0% Precip. / 0 in
        Clear skies. Low 72F. Winds light and variable.
        Tomorrow
        Wed 10/07
        High 97°f70°f
         0% Precip. / 0 in
        Sunny. Hot. High 97F. Winds W at 5 to 10 mph.
        Hourly Forecast
        Now
        88°
        9AM
        88°
        10AM
        93°
        11AM
        97°
        12PM
        98°
        1PM
        98°
        2PM
        97°
        3PM
        96°
        4PM
        96°
        5PM
        94°
        6PM
        89°
        6:27PM
        Sunset
        7PM
        86°
        8PM
        83°
        9PM
        82°
        10PM
        80°
        11PM
        79°
        12AM
        77°
        1AM
        77°
        2AM
        75°
        3AM
        74°
        4AM
        74°
        5AM
        73°
        6AM
        73°
        6:46AM
        Sunrise
        7AM
        73°
        8AM
        79°
        Precipitation
        0%
        Pollen
        None
        Air Quality
        25
        Good
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 29.9 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point51°F
        5. Humidity 28%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KCRQ Station History
        Almanac for October 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 98°F 83°F 100°F 2020
        4. Low 72°F 60°F 50°F 2002
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for October 6, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 97°F 82°F 99°F
        4. Low 72°F 60°F 49°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:45 AM 6:27 PM
        3. Civil Twilight 6:21 AM 6:52 PM
        4. Nautical Twilight 5:52 AM 7:21PM
        5. Astronomical Twilight 5:23 AM 7:49 PM
        1. Length of Visible Light 12h 31m
        2. Length of Day 11h 41m
        3. Tomorrow will be 2 minutes 1 second shorter
        1. Moon 1:29 AM 3:45 PM
        2. Waning Crescent30% of the Moon is Illuminated
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
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