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      Heat Advisory
      until 8:00 PM EDT
      Elev 13 ft, 31.161 °N 81.378 °W

      St. Simons, GA

      Kelvin Grove Station
      Updated: 8:42 PM EDT on August 18, 2026 (GMT -4)
      11 minutes ago
      98°
      80°
      88
      Feels Like 98
      Fair
      N
      14
      Gusts 22 mph
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Wed 08/19
      Low 79°f
      8% Precip. / 0 in
      Mostly clear. Low 79F. Winds W at 5 to 10 mph.
      Tomorrow
      Thu 08/20
      High 98°f
      24% Precip. / 0 in
      Except for a few afternoon clouds, mainly sunny. A stray shower or thunderstorm is possible. High 98F. Winds SW at 5 to 10 mph.
      Tomorrow night
      Thu 08/20
      Low 77°f
      23% Precip. / 0 in
      Mostly clear skies. Low 77F. Winds SW at 5 to 10 mph.
      Hourly Forecast
      Now
      89°
      9PM
      88°
      10PM
      87°
      11PM
      85°
      12AM
      84°
      1AM
      83°
      2AM
      82°
      3AM
      82°
      4AM
      81°
      5AM
      81°
      6AM
      80°
      6:53AM
      Sunrise
      7AM
      80°
      8AM
      81°
      9AM
      85°
      10AM
      88°
      11AM
      91°
      12PM
      93°
      1PM
      94°
      2PM
      95°
      3PM
      96°
      4PM
      95°
      5PM
      92°
      6PM
      91°
      7PM
      89°
      8PM
      87°
      Precipitation
      24%
      Pollen
      Ragweed Pollen
      High
      Air Quality
      60
      Moderate
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 29.91 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point78°F
      5. Humidity 70%
      6. Rainfall 0 in
      7. Snow Depth 0 in
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      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:53 AM 8:03 PM
      3. Civil Twilight 6:28 AM 8:29 PM
      4. Nautical Twilight 5:58 AM 8:59PM
      5. Astronomical Twilight 5:27 AM 9:30 PM
      1. Length of Visible Light 14h -m
      2. Length of Day 13h 10m
      3. Tomorrow will be 1 minute 42 seconds shorter
      1. Moon 1:49 PM -
      2. First quarter46% of the Moon is Illuminated
      Aug 26
      Full Moon
      Sep 3
      Waning Half Last Qtr
      Sep 16
      Waxing Half First Qtr
      -
      -
       KSSI Station History
      Almanac for August 19, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 98°F 89°F 98°F 1983
      4. Low 80°F 76°F 67°F 1960
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.1 in -
      7. Snow 0 in 0 in -
      Almanac for August 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 98°F 89°F 100°F
      4. Low 80°F 76°F 66°F
      Precipitation
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