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      Elev 450 ft, 39.464 °N 76.486 °W

      Glen Arm, MD

      Glen Arm Station53°
      Updated: 7:55 AM EDT on September 25, 2026 (GMT -4)
      5 minutes ago
      73°
      49°
      53
      Feels Like 51
      Sunny
      N
      8
      Gusts 17 mph
      Higher temperature is expected today
      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
        Today
        Fri 09/25
        High 73°f
         1% Precip. / 0 in
        Sun and clouds mixed. High 73F. Winds N at 10 to 20 mph.
        Tonight
        Fri 09/25
        Low 55°f
         6% Precip. / 0 in
        Partly cloudy skies. Low near 55F. Winds NNW at 10 to 20 mph.
        Tomorrow
        Sat 09/26
        High 70°f57°f
         57% Precip. / 0.09 in
        Partly cloudy skies during the morning hours will give way to occasional showers in the afternoon. High near 70F. Winds NNW at 10 to 20 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        53°
        8AM
        53°
        9AM
        56°
        10AM
        59°
        11AM
        62°
        12PM
        66°
        1PM
        69°
        2PM
        70°
        3PM
        71°
        4PM
        71°
        5PM
        71°
        6PM
        69°
        6:57PM
        Sunset
        7PM
        67°
        8PM
        65°
        9PM
        63°
        10PM
        62°
        11PM
        61°
        12AM
        60°
        1AM
        59°
        2AM
        58°
        3AM
        58°
        4AM
        58°
        5AM
        57°
        6AM
        57°
        6:57AM
        Sunrise
        7AM
        56°
        Precipitation
        9%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        23
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.15 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point42°F
        5. Humidity 67%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMTN Station History
        Almanac for September 25, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 76°F 93°F 1970
        4. Low 49°F 56°F 33°F 1963
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.16 in -
        7. Snow 0 in - in -
        Almanac for September 26, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 76°F 93°F
        4. Low 49°F 55°F 37°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:56 AM 6:58 PM
        3. Civil Twilight 6:29 AM 7:24 PM
        4. Nautical Twilight 5:58 AM 7:55PM
        5. Astronomical Twilight 5:26 AM 8:27 PM
        1. Length of Visible Light 12h 55m
        2. Length of Day 12h 1m
        3. Tomorrow will be 2 minutes 34 seconds shorter
        1. Moon 6:22 PM 5:42 AM
        2. Waxing Gibbous99% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
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