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      Small Craft Advisory
      until 6:00 AM EDT
      Elev 111 ft, 38.938 °N 76.963 °W

      Mount Rainier, MD

      Mount Rainier Station73°
      Updated: 1:48 AM EDT on September 21, 2026 (GMT -4)
      1 minute ago
      80°
      68°
      73
      Feels Like 73
      Mostly Cloudy
      N
      8
      Lower 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
        Tonight
        Sun 09/20
        Low 65°f
         15% Precip. / 0 in
        A few clouds. Slight chance of a rain shower. Low around 65F. Winds NNE at 5 to 10 mph.
        Tomorrow
        Mon 09/21
        High 72°f
         66% Precip. / 0.14 in
        Cloudy with rain developing later in the day. High 72F. Winds NE at 5 to 10 mph. Chance of rain 70%.
        Tomorrow night
        Mon 09/21
        Low 61°f
         74% Precip. / 0.27 in
        Rain showers in the evening will evolve into a more steady rain overnight. Low 61F. Winds ENE at 5 to 10 mph. Chance of rain 70%. Rainfall near a quarter of an inch.
        Hourly Forecast
        Now
        71°
        2AM
        71°
        3AM
        70°
        4AM
        70°
        5AM
        69°
        6AM
        68°
        6:54AM
        Sunrise
        7AM
        67°
        8AM
        68°
        9AM
        69°
        10AM
        70°
        11AM
        71°
        12PM
        72°
        1PM
        72°
        2PM
        56%
        71°
        3PM
        66%
        71°
        4PM
        56%
        70°
        5PM
        43%
        69°
        6PM
        63%
        69°
        7PM
        57%
        69°
        7:06PM
        Sunset
        8PM
        62%
        67°
        9PM
        57%
        65°
        10PM
        62%
        64°
        11PM
        52%
        63°
        12AM
        35%
        63°
        1AM
        56%
        63°
        Precipitation
        66%
        Pollen
        Ragweed Pollen
        Very High
        Air Quality
        53
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.94 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point66°F
        5. Humidity 87%
        6. Rainfall 0.09 in
        7. Snow Depth 0 in
         KCGS Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 80°F 91°F 1989
        4. Low 68°F 60°F 37°F 1956
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 79°F 97°F
        4. Low 68°F 59°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:54 AM 7:06 PM
        3. Civil Twilight 6:28 AM 7:32 PM
        4. Nautical Twilight 5:56 AM 8:04PM
        5. Astronomical Twilight 5:25 AM 8:35 PM
        1. Length of Visible Light 13h 4m
        2. Length of Day 12h 11m
        3. Tomorrow will be 2 minutes 31 seconds shorter
        1. Moon 4:40 PM 1:27 AM
        2. Waxing Gibbous77% 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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