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      Small Craft Advisory
      until 6:00 PM EDT
      Elev 200 ft, 40.881 °N 73.459 °W

      Cold Spring Harbor, NY

      Lefferts Mill Station61°
      Updated: 9:37 AM EDT on September 21, 2026 (GMT -4)
      6 minutes ago
      70°
      60°
      61
      Feels Like 61
      Cloudy
      N
      15
      Gusts 25 mph
      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 70°f
         2% Precip. / 0 in
        Sunshine and clouds mixed. High near 70F. Winds NE at 10 to 20 mph.
        Tonight
        Mon 09/21
        Low 60°f
         12% Precip. / 0 in
        Cloudy skies. Low near 60F. Winds ENE at 10 to 20 mph.
        Tomorrow
        Tue 09/22
        High 65°f56°f
         24% Precip. / 0 in
        Cloudy skies. A stray shower or thunderstorm is possible. High near 65F. Winds NE at 15 to 25 mph.
        Hourly Forecast
        Now
        60°
        10AM
        61°
        11AM
        63°
        12PM
        65°
        1PM
        67°
        2PM
        68°
        3PM
        68°
        4PM
        68°
        5PM
        68°
        6PM
        68°
        6:52PM
        Sunset
        7PM
        66°
        8PM
        65°
        9PM
        64°
        10PM
        64°
        11PM
        63°
        12AM
        63°
        1AM
        63°
        2AM
        62°
        3AM
        62°
        4AM
        62°
        5AM
        62°
        6AM
        61°
        6:41AM
        Sunrise
        7AM
        61°
        8AM
        61°
        9AM
        61°
        Precipitation
        23%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        15
        Good
        UV Index
        2
        Low
        Additional Conditions
        1. Pressure 30.07 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point55°F
        5. Humidity 82%
        6. Rainfall 0.42 in
        7. Snow Depth 0 in
         KFRG Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 76°F 89°F 1940
        4. Low 60°F 58°F 41°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 76°F 90°F
        4. Low 60°F 58°F 43°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:40 AM 6:52 PM
        3. Civil Twilight 6:13 AM 7:19 PM
        4. Nautical Twilight 5:40 AM 7:52PM
        5. Astronomical Twilight 5:08 AM 8:24 PM
        1. Length of Visible Light 13h 6m
        2. Length of Day 12h 12m
        3. Tomorrow will be 2 minutes 42 seconds shorter
        1. Moon 4:32 PM 1:06 AM
        2. Waxing Gibbous77% 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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