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      Elev 143 ft, 39.039 °N 76.497 °W

      Arnold, MD

      Briar Lea Station67°
      Updated: 10:01 PM EDT on September 11, 2026 (GMT -4)
      10 minutes ago
      79°
      69°
      67
      Feels Like 67
      Clear
      N
      1
      Similar temperature is expected tomorrow
      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
        Fri 09/11
        Low 69°f
         18% Precip. / 0 in
        Clear to partly cloudy. Low 69F. Winds light and variable.
        Tomorrow
        Sat 09/12
        High 80°f
         24% Precip. / 0 in
        Cloudy. High near 80F. Winds ESE at 10 to 15 mph.
        Tomorrow night
        Sat 09/12
        Low 72°f
         79% Precip. / 0.27 in
        Thunderstorms. Low 72F. Winds SSE at 5 to 10 mph. Chance of rain 80%. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        70°
        11PM
        70°
        12AM
        69°
        1AM
        69°
        2AM
        71°
        3AM
        71°
        4AM
        71°
        5AM
        71°
        6AM
        71°
        6:44AM
        Sunrise
        7AM
        71°
        8AM
        72°
        9AM
        73°
        10AM
        74°
        11AM
        75°
        12PM
        77°
        1PM
        78°
        2PM
        78°
        3PM
        79°
        4PM
        79°
        5PM
        34%
        79°
        6PM
        78°
        7PM
        77°
        7:19PM
        Sunset
        8PM
        31%
        77°
        9PM
        33%
        77°
        10PM
        76°
        Precipitation
        34%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        42
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.03 in
        2. Visibility 9 miles
        3. Clouds Clear
        4. Dew Point66°F
        5. Humidity 87%
        6. Rainfall 0.46 in
        7. Snow Depth 0 in
         KANP Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 79°F 82°F 94°F 1998
        4. Low 69°F 66°F 43°F 1986
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 81°F 94°F
        4. Low 69°F 66°F 42°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:44 AM 7:19 PM
        3. Civil Twilight 6:17 AM 7:45 PM
        4. Nautical Twilight 5:46 AM 8:17PM
        5. Astronomical Twilight 5:13 AM 8:49 PM
        1. Length of Visible Light 13h 28m
        2. Length of Day 12h 34m
        3. Tomorrow will be 2 minutes 30 seconds shorter
        1. Moon 8:19 AM 7:52 PM
        2. Waxing Crescent2% 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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