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      Elev 116 ft, 41.160 °N 73.771 °W

      Chappaqua, NY

      Chappaqua Station61°
      Updated: 12:41 AM EDT on September 20, 2026 (GMT -4)
      6 minutes ago
      68°
      61°
      61
      Feels Like 61
      Cloudy
      N
      6
      Lower 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
        Tonight
        Sat 09/19
        Low 60°f
         79% Precip. / 0.03 in
        Rain likely. Low around 60F. Winds SE at 5 to 10 mph. Chance of rain 80%.
        Tomorrow
        Sun 09/20
        High 66°f
         94% Precip. / 0.59 in
        Cloudy with periods of rain. Potential for heavy rainfall. High 66F. Winds SE at 5 to 10 mph. Chance of rain 90%. Rainfall near a half an inch.
        Tomorrow night
        Sun 09/20
        Low 56°f
         67% Precip. / 0.11 in
        Cloudy with occasional rain...mainly in the evening. Low 56F. Winds N at 10 to 15 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        61°
        1AM
        61°
        2AM
        62°
        3AM
        61°
        4AM
        62°
        5AM
        43%
        62°
        6AM
        79%
        61°
        6:40AM
        Sunrise
        7AM
        91%
        61°
        8AM
        94%
        61°
        9AM
        92%
        61°
        10AM
        90%
        61°
        11AM
        88%
        62°
        12PM
        94%
        62°
        1PM
        90%
        63°
        2PM
        85%
        63°
        3PM
        73%
        64°
        4PM
        67%
        64°
        5PM
        62%
        65°
        6PM
        67%
        65°
        6:55PM
        Sunset
        7PM
        68%
        65°
        8PM
        59%
        64°
        9PM
        62%
        64°
        10PM
        60%
        64°
        11PM
        44%
        64°
        12AM
        63°
        Precipitation
        94%
        Rain possible after 5 AM
        Pollen
        None
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.14 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point53°F
        5. Humidity 75%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHPN Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 68°F 73°F 91°F 1983
        4. Low 61°F 50°F 35°F 1979
        5. Rain/Snow Depth
        6. Precipitation 0.03 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 73°F 90°F
        4. Low 61°F 50°F 37°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:40 AM 6:55 PM
        3. Civil Twilight 6:13 AM 7:23 PM
        4. Nautical Twilight 5:40 AM 7:55PM
        5. Astronomical Twilight 5:07 AM 8:28 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 14m
        3. Tomorrow will be 2 minutes 43 seconds shorter
        1. Moon 4:00 PM 12:04 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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