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      Elev 256 ft, 38.882 °N 77.087 °W

      Fort Myer, VA

      Lyon Park Station83°
      Updated: 5:01 PM EDT on September 17, 2026 (GMT -4)
      8 minutes ago
      88°
      68°
      83
      Feels Like 90
      Showers in Vicinity
      N
      6
      Lower 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
        Thu 09/17
        Low 72°f
         84% Precip. / 0.05 in
        Cloudy and damp with rain early...then becoming partly cloudy. Low 72F. Winds light and variable. Chance of rain 80%.
        Tomorrow
        Fri 09/18
        High 85°f
         15% Precip. / 0 in
        A mix of clouds and sun in the morning followed by cloudy skies during the afternoon. A stray shower or thunderstorm is possible. High around 85F. Winds N at 5 to 10 mph.
        Tomorrow night
        Fri 09/18
        Low 66°f
         3% Precip. / 0 in
        Partly cloudy in the evening with more clouds for later at night. Low 66F. Winds NNE at 5 to 10 mph.
        Hourly Forecast
        Now
        83°
        6PM
        81°
        7PM
        81°
        7:13PM
        Sunset
        8PM
        80°
        9PM
        39%
        79°
        10PM
        73%
        78°
        11PM
        42%
        77°
        12AM
        76°
        1AM
        76°
        2AM
        75°
        3AM
        75°
        4AM
        75°
        5AM
        74°
        6AM
        74°
        6:52AM
        Sunrise
        7AM
        73°
        8AM
        75°
        9AM
        77°
        10AM
        79°
        11AM
        80°
        12PM
        82°
        1PM
        83°
        2PM
        84°
        3PM
        84°
        4PM
        84°
        5PM
        84°
        Precipitation
        73%
        Rain ends by 6 PM
        Pollen
        Ragweed Pollen
        High
        Air Quality
        57
        Moderate
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.1 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point72°F
        5. Humidity 69%
        6. Rainfall 0.01 in
        7. Snow Depth 0 in
         KJPN Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 88°F 80°F 96°F 1991
        4. Low 68°F 64°F 44°F 1923
        5. Rain/Snow Depth
        6. Precipitation 0.05 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 80°F 91°F
        4. Low 68°F 63°F 45°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:51 AM 7:13 PM
        3. Civil Twilight 6:24 AM 7:39 PM
        4. Nautical Twilight 5:53 AM 8:11PM
        5. Astronomical Twilight 5:21 AM 8:43 PM
        1. Length of Visible Light 13h 14m
        2. Length of Day 12h 21m
        3. Tomorrow will be 2 minutes 30 seconds shorter
        1. Moon 1:42 PM 10:40 PM
        2. Waxing Crescent39% 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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