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      Tornado Watch
      until 10:00 PM EDT
      +2 more alerts
      Elev 217 ft, 38.751 °N 76.821 °W

      Rosaryville, MD

      Upper Marlboro Station
      Updated: 4:02 PM EDT on August 20, 2026 (GMT -4)
      23 seconds ago
      90°
      68°
      91
      Feels Like 105
      Partly Cloudy
      N
      10
      Gusts 17 mph
      Lower temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Thu 08/20
      Low 64°f
      22% Precip. / 0 in
      A few clouds. A stray shower or thunderstorm is possible. Low 64F. Winds NNW at 10 to 15 mph.
      Tomorrow
      Fri 08/21
      High 81°f
      15% Precip. / 0 in
      Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. A stray shower or thunderstorm is possible. High 81F. Winds NE at 5 to 10 mph.
      Tomorrow night
      Fri 08/21
      Low 68°f
      61% Precip. / 0.16 in
      Mostly cloudy with some showers late. Low 68F. Winds light and variable. Chance of rain 60%.
      Hourly Forecast
      Now
      89°
      5PM
      85°
      6PM
      78°
      7PM
      78°
      7:55PM
      Sunset
      8PM
      75°
      9PM
      73°
      10PM
      71°
      11PM
      70°
      12AM
      69°
      1AM
      69°
      2AM
      68°
      3AM
      67°
      4AM
      67°
      5AM
      66°
      6AM
      66°
      6:26AM
      Sunrise
      7AM
      65°
      8AM
      67°
      9AM
      69°
      10AM
      71°
      11AM
      73°
      12PM
      76°
      1PM
      77°
      2PM
      78°
      3PM
      79°
      4PM
      79°
      Precipitation
      22%
      Pollen
      Grass Pollen
      Low
      Air Quality
      69
      Moderate
      UV Index
      3
      Moderate
      Additional Conditions
      1. Pressure 29.86 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point73°F
      5. Humidity 59%
      6. Rainfall 0.04 in
      7. Snow Depth 0 in
       KADW Station History
      Almanac for August 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 90°F 86°F 96°F 2002
      4. Low 68°F 65°F 45°F 1964
      5. Rain/Snow Depth
      6. Precipitation 0 in 4 in -
      7. Snow 0 in 0 in -
      Almanac for August 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 81°F 86°F 102°F
      4. Low 68°F 65°F 43°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:25 AM 7:54 PM
      3. Civil Twilight 5:57 AM 8:22 PM
      4. Nautical Twilight 5:23 AM 8:56PM
      5. Astronomical Twilight 4:48 AM 9:31 PM
      1. Length of Visible Light 14h 25m
      2. Length of Day 13h 29m
      3. Tomorrow will be 2 minutes 17 seconds shorter
      1. Moon 2:53 PM -
      2. Waxing Gibbous56% of the Moon is Illuminated
      Aug 28
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
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