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      Elev 564 ft, 39.548 °N 77.645 °W

      San Mar, MD

      Mapleville (Boonsboro) MD Station49°
      Updated: 7:12 AM EDT on September 15, 2026 (GMT -4)
      9 minutes ago
      77°
      49°
      49
      Feels Like 49
      Sunny
      N
      0
      Same temperature is expected today
      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
        Tue 09/15
        High 77°f
         2% Precip. / 0 in
        Mainly sunny. High 77F. Winds SE at 5 to 10 mph.
        Tonight
        Tue 09/15
        Low 59°f
         6% Precip. / 0 in
        Clear skies. Low 59F. Winds light and variable.
        Tomorrow
        Wed 09/16
        High 87°f67°f
         6% Precip. / 0 in
        Sunshine and some clouds. High 87F. Winds S at 5 to 10 mph.
        Hourly Forecast
        Now
        51°
        8AM
        53°
        9AM
        58°
        10AM
        63°
        11AM
        67°
        12PM
        70°
        1PM
        72°
        2PM
        74°
        3PM
        75°
        4PM
        75°
        5PM
        75°
        6PM
        75°
        7PM
        72°
        7:19PM
        Sunset
        8PM
        70°
        9PM
        67°
        10PM
        66°
        11PM
        65°
        12AM
        64°
        1AM
        63°
        2AM
        62°
        3AM
        62°
        4AM
        61°
        5AM
        60°
        6AM
        60°
        6:52AM
        Sunrise
        7AM
        60°
        Precipitation
        7%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        20
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.35 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point48°F
        5. Humidity 91%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHGR Station History
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 77°F 92°F 1970
        4. Low 49°F 56°F 40°F 1975
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.13 in -
        7. Snow 0 in - in -
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 87°F 77°F 95°F
        4. Low 49°F 55°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:51 AM 7:19 PM
        3. Civil Twilight 6:24 AM 7:45 PM
        4. Nautical Twilight 5:53 AM 8:17PM
        5. Astronomical Twilight 5:20 AM 8:50 PM
        1. Length of Visible Light 13h 21m
        2. Length of Day 12h 27m
        3. Tomorrow will be 2 minutes 33 seconds shorter
        1. Moon 11:43 AM 9:19 PM
        2. Waxing Crescent21% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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