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      Elev 125 ft, 38.852 °N 77.059 °W

      Arlington, VA

      Pentagon Ahp Station73°
      Updated: 5:22 AM EDT on September 20, 2026 (GMT -4)
      7 minutes ago
      84°
      72°
      73
      Feels Like 73
      Cloudy
      N
      10
      Gusts 21 mph
      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
        Sun 09/20
        High 84°f
         62% Precip. / 0.24 in
        Cloudy early, then thunderstorms developing this afternoon. High 84F. Winds SSW at 10 to 15 mph. Chance of rain 60%.
        Tonight
        Sun 09/20
        Low 68°f
         59% Precip. / 0.04 in
        Scattered thunderstorms during the evening. Partly cloudy skies after midnight. Low 68F. Winds NNW at 5 to 10 mph. Chance of rain 60%.
        Tomorrow
        Mon 09/21
        High 71°f63°f
         22% Precip. / 0 in
        More clouds than sun. A stray shower or thunderstorm is possible. High 71F. Winds NE at 10 to 15 mph.
        Hourly Forecast
        Now
        74°
        6AM
        73°
        6:54AM
        Sunrise
        7AM
        73°
        8AM
        73°
        9AM
        74°
        10AM
        76°
        11AM
        78°
        12PM
        80°
        1PM
        81°
        2PM
        81°
        3PM
        83°
        4PM
        31%
        83°
        5PM
        35%
        83°
        6PM
        62%
        81°
        7PM
        59%
        77°
        7:08PM
        Sunset
        8PM
        49%
        76°
        9PM
        31%
        75°
        10PM
        75°
        11PM
        75°
        12AM
        74°
        1AM
        74°
        2AM
        73°
        3AM
        73°
        4AM
        71°
        5AM
        71°
        Precipitation
        62%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        33
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.99 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point66°F
        5. Humidity 78%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KJPN Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 79°F 94°F 1895
        4. Low 72°F 63°F 41°F 1916
        5. Rain/Snow Depth
        6. Precipitation 0.28 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 79°F 96°F
        4. Low 72°F 62°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:54 AM 7:08 PM
        3. Civil Twilight 6:27 AM 7:34 PM
        4. Nautical Twilight 5:56 AM 8:06PM
        5. Astronomical Twilight 5:24 AM 8:37 PM
        1. Length of Visible Light 13h 7m
        2. Length of Day 12h 14m
        3. Tomorrow will be 2 minutes 30 seconds shorter
        1. Moon 4:05 PM 12:27 AM
        2. Waxing Gibbous68% 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
        Precipitation
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