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      Elev 26 ft, 41.025 °N 73.564 °W

      Old Greenwich, CT

      Old Greenwich Station
      Updated: 7:30 PM EDT on August 23, 2026 (GMT -4)
      10 minutes ago
      84°
      67°
      77
      Feels Like 77
      Sunny
      N
      8
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Sun 08/23
      Low 62°f
      13% Precip. / 0 in
      Mostly clear. Low 62F. Winds W at 5 to 10 mph.
      Tomorrow
      Mon 08/24
      High 80°f
      19% Precip. / 0 in
      Mostly sunny skies. High around 80F. Winds SW at 10 to 15 mph.
      Tomorrow night
      Mon 08/24
      Low 62°f
      4% Precip. / 0 in
      A mostly clear sky. Low 62F. Winds W at 5 to 10 mph.
      Hourly Forecast
      Now
      80°
      7:41PM
      Sunset
      8PM
      79°
      9PM
      77°
      10PM
      75°
      11PM
      71°
      12AM
      70°
      1AM
      68°
      2AM
      67°
      3AM
      66°
      4AM
      65°
      5AM
      64°
      6AM
      63°
      6:12AM
      Sunrise
      7AM
      65°
      8AM
      67°
      9AM
      70°
      10AM
      73°
      11AM
      75°
      12PM
      77°
      1PM
      78°
      2PM
      78°
      3PM
      79°
      4PM
      79°
      5PM
      78°
      6PM
      76°
      7PM
      74°
      Precipitation
      19%
      Pollen
      Grass Pollen
      Low
      Air Quality
      51
      Moderate
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 29.81 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point63°F
      5. Humidity 55%
      6. Rainfall 0.55 in
      7. Snow Depth 0 in
       KHPN Station History
      Almanac for August 23, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 84°F 82°F 91°F 1996
      4. Low 67°F 62°F 46°F 1957
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.9 in -
      7. Snow 0 in 0 in -
      Almanac for August 24, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 80°F 82°F 91°F
      4. Low 67°F 62°F 43°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:12 AM 7:40 PM
      3. Civil Twilight 5:43 AM 8:09 PM
      4. Nautical Twilight 5:08 AM 8:44PM
      5. Astronomical Twilight 4:31 AM 9:21 PM
      1. Length of Visible Light 14h 26m
      2. Length of Day 13h 28m
      3. Tomorrow will be 2 minutes 32 seconds shorter
      1. Moon 5:24 PM 1:17 AM
      2. Waxing Gibbous83% of the Moon is Illuminated
      Aug 28
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
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