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      Small Craft Advisory
      until 11:00 PM EDT
      Elev 112 ft, 38.992 °N 76.970 °W

      Adelphi, MD

      Cool Spring Terrace Station62°
      Updated: 10:46 AM EDT on October 11, 2026 (GMT -4)
      7 minutes ago
      67°
      60°
      62
      Feels Like 62
      Rain
      N
      7
      Lower temperature is expected today
      Wundermap

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       Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
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      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sun 10/11
        High 67°f
         100% Precip. / 0.68 in
        Cloudy with periods of rain. High 67F. Winds ENE at 5 to 10 mph. Chance of rain 100%. Rainfall around a half an inch. Localized flooding is possible.
        Tonight
        Sun 10/11
        Low 59°f
         87% Precip. / 0.57 in
        Thunderstorms early, overcast overnight with occasional rain. Potential for heavy rainfall. Low 59F. Winds NNE at 5 to 10 mph. Chance of rain 90%.
        Tomorrow
        Mon 10/12
        High 74°f53°f
         24% Precip. / 0 in
        Chance of a morning shower. Cloudy early with partial sunshine expected late. High 74F. Winds NNW at 5 to 10 mph.
        Hourly Forecast
        Now
        62°
        11AM
        93%
        63°
        12PM
        72%
        63°
        1PM
        99%
        64°
        2PM
        100%
        66°
        3PM
        100%
        65°
        4PM
        94%
        65°
        5PM
        79%
        65°
        6PM
        91%
        66°
        6:34PM
        Sunset
        7PM
        85%
        66°
        8PM
        66%
        64°
        9PM
        76%
        64°
        10PM
        49%
        64°
        11PM
        45%
        64°
        12AM
        49%
        63°
        1AM
        53%
        63°
        2AM
        60%
        62°
        3AM
        87%
        62°
        4AM
        84%
        62°
        5AM
        81%
        61°
        6AM
        73%
        60°
        7AM
        41%
        60°
        7:14AM
        Sunrise
        8AM
        61°
        9AM
        62°
        10AM
        64°
        Precipitation
        100%
        Rain likely to continue
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        31
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.09 in
        2. Visibility 2.1 miles
        3. Clouds Cloudy
        4. Dew Point62°F
        5. Humidity 100%
        6. Rainfall 0.71 in
        7. Snow Depth 0 in
         KCGS Station History
        Almanac for October 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 70°F 91°F 1919
        4. Low 60°F 48°F 28°F 1929
        5. Rain/Snow Depth
        6. Precipitation 1.25 in 0.11 in -
        7. Snow 0 in - in -
        Almanac for October 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 70°F 89°F
        4. Low 58°F 48°F 23°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:13 AM 6:35 PM
        3. Civil Twilight 6:46 AM 7:01 PM
        4. Nautical Twilight 6:15 AM 7:32PM
        5. Astronomical Twilight 5:44 AM 8:03 PM
        1. Length of Visible Light 12h 15m
        2. Length of Day 11h 21m
        3. Tomorrow will be 2 minutes 29 seconds shorter
        1. Moon 8:17 AM 6:47 PM
        2. Waxing Crescent0% of the Moon is Illuminated
        Oct 18
        Waxing Half First Qtr
        Oct 26
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 9
        New Moon
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