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      Small Craft Advisory
      until 6:00 AM EDT
      Elev 157 ft, 39.146 °N 76.687 °W

      Severn, MD

      Severn(MunsonHeights), Md Station64°
      Updated: 11:37 PM EDT on September 21, 2026 (GMT -4)
      8 minutes ago
      73°
      63°
      64
      Feels Like 64
      Cloudy
      N
      8
      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
        Mon 09/21
        Low 60°f
         100% Precip. / 0.15 in
        A steady rain this evening. Showers continuing overnight. Low around 60F. Winds ENE at 10 to 15 mph. Chance of rain 100%.
        Tomorrow
        Tue 09/22
        High 63°f
         93% Precip. / 0.5 in
        Rain. High 63F. Winds NE at 10 to 20 mph. Chance of rain 90%. Rainfall around a half an inch.
        Tomorrow night
        Tue 09/22
        Low 54°f
         74% Precip. / 0.3 in
        Cloudy with periods of rain. Low 54F. Winds NE at 10 to 20 mph. Chance of rain 70%. Rainfall around a quarter of an inch.
        Hourly Forecast
        Now
        64°
        12AM
        68%
        64°
        1AM
        64°
        2AM
        33%
        64°
        3AM
        100%
        63°
        4AM
        98%
        63°
        5AM
        51%
        63°
        6AM
        60%
        62°
        6:54AM
        Sunrise
        7AM
        93%
        61°
        8AM
        92%
        61°
        9AM
        78%
        61°
        10AM
        85%
        60°
        11AM
        87%
        61°
        12PM
        81%
        61°
        1PM
        71%
        61°
        2PM
        80%
        61°
        3PM
        77%
        61°
        4PM
        79%
        62°
        5PM
        87%
        62°
        6PM
        80%
        62°
        7PM
        74%
        62°
        7:03PM
        Sunset
        8PM
        65%
        61°
        9PM
        61%
        61°
        10PM
        59%
        60°
        11PM
        64%
        60°
        Precipitation
        100%
        Rain expected around 12:15 AM
        Pollen
        Ragweed Pollen
        High
        Air Quality
        25
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.1 in
        2. Visibility 8 miles
        3. Clouds Cloudy
        4. Dew Point62°F
        5. Humidity 93%
        6. Rainfall 0.6 in
        7. Snow Depth 0 in
         KBWI Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 78°F 99°F 1931
        4. Low 63°F 57°F 37°F 1962
        5. Rain/Snow Depth
        6. Precipitation 0.15 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 77°F 98°F
        4. Low 63°F 56°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:54 AM 7:03 PM
        3. Civil Twilight 6:27 AM 7:30 PM
        4. Nautical Twilight 5:56 AM 8:01PM
        5. Astronomical Twilight 5:24 AM 8:33 PM
        1. Length of Visible Light 13h 2m
        2. Length of Day 12h 9m
        3. Tomorrow will be 2 minutes 32 seconds shorter
        1. Moon 5:09 PM 2:29 AM
        2. Waxing Gibbous84% 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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