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      Elev 246 ft, 37.274 °N 86.155 °W

      Mammoth Cave, KY

      Wed, Sep 30, 2026
      Today
      Wed 09/30
      High 88°f
      0% Precip. / 0 in
      Sunny. High 88F. Winds light and variable.
      Tonight
      Wed 09/30
      Low 64°f
      2% Precip. / 0 in
      A few passing clouds. Low 64F. Winds light and variable.
      Sunrise 6:39 AM
      Sunset 6:29 PM
      Moonrise 8:46 PM
      Moonset 11:12 AM
      Waning Gibbous, 77% visible
      Hourly Forecast
      Now
      88°
      3PM
      88°
      4PM
      87°
      5PM
      86°
      6PM
      81°
      6:29PM
      Sunset
      7PM
      76°
      8PM
      73°
      9PM
      71°
      10PM
      70°
      11PM
      69°
      12AM
      69°
      1AM
      68°
      2AM
      67°
      3AM
      66°
      4AM
      65°
      5AM
      65°
      6AM
      65°
      6:40AM
      Sunrise
      7AM
      65°
      8AM
      68°
      9AM
      73°
      10AM
      78°
      11AM
      82°
      12PM
      85°
      1PM
      87°
      2PM
      88°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      3:00 pm
      Sunny
      88°F 88°F 0% 0in 4% 50°F 27% 4 mph SSW 29.97in
      4:00 pm
      Sunny
      87°F 87°F 0% 0in 5% 50°F 28% 4 mph S 29.96in
      5:00 pm
      Sunny
      86°F 86°F 0% 0in 0% 53°F 33% 3 mph SSE 29.95in
      6:00 pm
      Sunny
      81°F 81°F 0% 0in 10% 54°F 39% 4 mph SSE 29.96in
      7:00 pm
      Clear
      76°F 76°F 0% 0in 9% 53°F 45% 3 mph SSE 29.96in
      8:00 pm
      Clear
      73°F 73°F 0% 0in 18% 53°F 50% 2 mph SSE 29.97in
      9:00 pm
      Clear
      71°F 71°F 0% 0in 18% 53°F 54% 2 mph SSE 29.99in
      10:00 pm
      Clear
      70°F 70°F 0% 0in 19% 54°F 57% 3 mph SSE 29.99in
      11:00 pm
      Mostly Clear
      69°F 69°F 0% 0in 24% 54°F 58% 3 mph S 29.99in
      Additional Conditions
      1. Pressure 29.99 in
      2. Visibility 10 miles
      3. Clouds Clear
      4. Dew Point49°F
      5. Humidity 27%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KGLW Station History
      Almanac for September 30, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 88°F 80°F 97°F 2019
      4. Low 52°F 55°F 30°F 1949
      5. Rain/Snow Depth
      6. Precipitation 0 in 2.9 in -
      7. Snow 0 in - in -
      Almanac for October 1, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 90°F 80°F 99°F
      4. Low 64°F 55°F 31°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:39 AM 6:29 PM
      3. Civil Twilight 6:13 AM 6:55 PM
      4. Nautical Twilight 5:43 AM 7:25PM
      5. Astronomical Twilight 5:12 AM 7:55 PM
      1. Length of Visible Light 12h 41m
      2. Length of Day 11h 49m
      3. Tomorrow will be 2 minutes 21 seconds shorter
      1. Moon 8:46 PM 11:12 AM
      2. Waning Gibbous77% of the Moon is Illuminated
      Oct 3
      Waning Half Last Qtr
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nearby Weather Stations
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      Windchill
      Heat Index
      Dew Point
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      Precip.
      Elev.
      Updated
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      Glossary