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      Elev 1770 ft, 41.438 °N 78.561 °W

      St. Marys, PA

      Updated: 4:36 PM EDT on September 27, 2026 (GMT -4)
      7 minutes ago
      65°
      50°
      58
      Feels Like 58
      Rain
      N
      9
      Gusts 17 mph
      Same temperature is expected tomorrow
      Wundermap
      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
        Tonight
        Sun 09/27
        Low 53°f
        100% Precip. / 0.14 in
        Rain ending early. Remaining cloudy. Low 53F. Winds N at 5 to 10 mph. Chance of rain 100%.
        Tomorrow
        Mon 09/28
        High 64°f
        22% Precip. / 0 in
        Overcast. High 64F. Winds N at 5 to 10 mph.
        Tomorrow night
        Mon 09/28
        Low 53°f
        20% Precip. / 0 in
        Cloudy skies. Low 53F. Winds light and variable.
        Hourly Forecast
        Now
        57°
        5PM
        99%
        57°
        6PM
        88%
        56°
        7PM
        96%
        55°
        7:02PM
        Sunset
        8PM
        90%
        56°
        9PM
        54%
        54°
        10PM
        54°
        11PM
        54°
        12AM
        54°
        1AM
        54°
        2AM
        54°
        3AM
        54°
        4AM
        54°
        5AM
        54°
        6AM
        54°
        7AM
        54°
        7:08AM
        Sunrise
        8AM
        54°
        9AM
        56°
        10AM
        57°
        11AM
        59°
        12PM
        60°
        1PM
        62°
        2PM
        63°
        3PM
        63°
        4PM
        64°
        Additional Conditions
        1. Pressure 29.85 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point53°F
        5. Humidity 86%
        6. Rainfall 0.17 in
        7. Snow Depth 0 in
        KOYM Station History
        Almanac for September 27, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 69°F 90°F 1927
        4. Low 50°F 45°F 22°F 1957
        5. Rain/Snow Depth
        6. Precipitation 0.14 in 2.9 in -
        7. Snow 0 in 0 in -
        Almanac for September 28, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 69°F 88°F
        4. Low 50°F 45°F 23°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:06 AM 7:02 PM
        3. Civil Twilight 6:39 AM 7:30 PM
        4. Nautical Twilight 6:07 AM 8:02PM
        5. Astronomical Twilight 5:34 AM 8:34 PM
        1. Length of Visible Light 12h 50m
        2. Length of Day 11h 55m
        3. Tomorrow will be 2 minutes 45 seconds shorter
        1. Moon 7:16 PM 8:09 AM
        2. Waning Gibbous97% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 26
        Full Moon
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