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      Elev 797 ft, 29.521 °N 98.524 °W

      Castle Hills, TX

      Updated: 7:56 AM CDT on September 20, 2026 (GMT -5)
      7 minutes ago
      96°
      74°
      71
      Feels Like 73
      Sunny
      N
      1
      Similar temperature is expected today
      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
        Mon 09/21
        High 96°f
        4% Precip. / 0 in
        A mix of clouds and sun. Hot. High 96F. Winds light and variable.
        Tonight
        Mon 09/21
        Low 77°f
        17% Precip. / 0 in
        Partly cloudy skies. Low 77F. Winds SE at 10 to 15 mph.
        Tomorrow
        Tue 09/22
        High 96°f76°f
        16% Precip. / 0 in
        Partly cloudy skies. High 96F. Winds SE at 5 to 10 mph.
        Hourly Forecast
        Now
        76°
        8AM
        76°
        9AM
        78°
        10AM
        81°
        11AM
        84°
        12PM
        87°
        1PM
        89°
        2PM
        91°
        3PM
        92°
        4PM
        94°
        5PM
        94°
        6PM
        94°
        7PM
        93°
        7:32PM
        Sunset
        8PM
        90°
        9PM
        87°
        10PM
        86°
        11PM
        83°
        12AM
        81°
        1AM
        80°
        2AM
        80°
        3AM
        79°
        4AM
        78°
        5AM
        78°
        6AM
        78°
        7AM
        78°
        Additional Conditions
        1. Pressure 29.94 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point72°F
        5. Humidity 89%
        6. Rainfall 0 in
        7. Snow Depth 0 in
        KSAT Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 96°F 89°F 100°F 2021
        4. Low 74°F 69°F 51°F 1981
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 96°F 89°F 100°F
        4. Low 74°F 68°F 53°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:21 AM 7:32 PM
        3. Civil Twilight 6:57 AM 7:56 PM
        4. Nautical Twilight 6:29 AM 8:24PM
        5. Astronomical Twilight 6:01 AM 8:52 PM
        1. Length of Visible Light 12h 58m
        2. Length of Day 12h 11m
        3. Tomorrow will be 1 minute 46 seconds shorter
        1. Moon 4:05 PM 1:27 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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        Weather Alerts
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