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      Elev 633 ft, 39.821 °N 77.904 °W

      Mercersburg, PA

      Sun, Oct 4, 2026
      Today
      Sun 10/04
      High 63°f
      13% Precip. / 0 in
      Generally cloudy. High 63F. Winds light and variable.
      Tonight
      Sun 10/04
      Low 53°f
      21% Precip. / 0 in
      Cloudy skies. Areas of patchy fog developing. Low 53F. Winds light and variable.
      Sunrise 7:10 AM
      Sunset 6:49 PM
      Moonrise 12:12 AM
      Moonset 3:43 PM
      Waning Crescent, 43% visible
      Hourly Forecast
      Now
      58°
      10AM
      58°
      11AM
      59°
      12PM
      60°
      1PM
      60°
      2PM
      61°
      3PM
      61°
      4PM
      62°
      5PM
      62°
      6PM
      62°
      6:48PM
      Sunset
      7PM
      62°
      8PM
      61°
      9PM
      61°
      10PM
      60°
      11PM
      59°
      12AM
      59°
      1AM
      59°
      2AM
      58°
      3AM
      58°
      4AM
      57°
      5AM
      56°
      6AM
      55°
      7AM
      54°
      7:11AM
      Sunrise
      8AM
      55°
      9AM
      58°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      10:00 am
      Cloudy
      58°F 58°F 12% 0in 100% 56°F 95% 3 mph E 30.2in
      11:00 am
      Cloudy
      59°F 59°F 13% 0in 98% 57°F 92% 3 mph E 30.19in
      12:00 pm
      Cloudy
      60°F 60°F 12% 0in 98% 57°F 92% 3 mph ESE 30.17in
      1:00 pm
      Cloudy
      60°F 60°F 11% 0in 98% 58°F 92% 4 mph SE 30.15in
      2:00 pm
      Cloudy
      61°F 61°F 7% 0in 98% 58°F 90% 4 mph SE 30.13in
      3:00 pm
      Cloudy
      61°F 61°F 6% 0in 97% 58°F 90% 4 mph SE 30.11in
      4:00 pm
      Cloudy
      62°F 62°F 6% 0in 97% 59°F 88% 4 mph SSE 30.09in
      5:00 pm
      Cloudy
      62°F 62°F 7% 0in 98% 59°F 88% 3 mph SE 30.08in
      6:00 pm
      Cloudy
      62°F 62°F 7% 0in 95% 59°F 88% 4 mph ESE 30.08in
      7:00 pm
      Cloudy
      62°F 62°F 8% 0in 87% 59°F 89% 3 mph E 30.08in
      8:00 pm
      Mostly Cloudy
      61°F 61°F 20% 0in 79% 58°F 90% 2 mph SE 30.09in
      9:00 pm
      Mostly Cloudy
      61°F 61°F 21% 0in 76% 58°F 92% 2 mph SE 30.09in
      10:00 pm
      Mostly Cloudy
      60°F 60°F 21% 0in 71% 58°F 92% 1 mph SSE 30.09in
      11:00 pm
      Mostly Cloudy
      59°F 59°F 21% 0in 78% 57°F 92% 1 mph S 30.09in
      Additional Conditions
      1. Pressure 30.21 in
      2. Visibility 6 miles
      3. Clouds Cloudy
      4. Dew Point56°F
      5. Humidity 95%
      6. Rainfall 0.01 in
      7. Snow Depth 0 in
      KHGR Station History
      Almanac for October 4, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 63°F 71°F 85°F 1983
      4. Low 53°F 43°F 21°F 1974
      5. Rain/Snow Depth
      6. Precipitation 0 in 0.12 in -
      7. Snow 0 in - in -
      Almanac for October 5, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 71°F 85°F
      4. Low 49°F 43°F 26°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:10 AM 6:49 PM
      3. Civil Twilight 6:43 AM 7:15 PM
      4. Nautical Twilight 6:12 AM 7:47PM
      5. Astronomical Twilight 5:41 AM 8:18 PM
      1. Length of Visible Light 12h 32m
      2. Length of Day 11h 38m
      3. Tomorrow will be 2 minutes 34 seconds shorter
      1. Moon 12:12 AM 3:43 PM
      2. Waning Crescent43% of the Moon is Illuminated
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 26
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary