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      Small Craft Advisory
      until 9:00 PM EDT
      Elev 125 ft, 38.478 °N 76.515 °W

      St. Leonard, MD

      Port Republic Station77°
      Updated: 6:58 PM EDT on September 12, 2026 (GMT -4)
      2 minutes ago
      81°
      68°
      77
      Feels Like 79
      Cloudy
      N
      6
      Higher 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
        Sat 09/12
        Low 72°f
         87% Precip. / 0.19 in
        Showers and thundershowers likely this evening with a shower or two possible overnight. Low 72F. Winds SSE at 5 to 10 mph. Chance of rain 90%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/13
        High 85°f
         24% Precip. / 0 in
        Considerable cloudiness. A stray shower or thunderstorm is possible. High near 85F. Winds light and variable.
        Tomorrow night
        Sun 09/13
        Low 71°f
         20% Precip. / 0 in
        A few clouds from time to time. Low 71F. Winds W at 5 to 10 mph.
        Hourly Forecast
        Now
        77°
        7PM
        57%
        77°
        7:18PM
        Sunset
        8PM
        44%
        76°
        9PM
        75°
        10PM
        86%
        76°
        11PM
        41%
        75°
        12AM
        74°
        1AM
        73°
        2AM
        31%
        73°
        3AM
        30%
        74°
        4AM
        74°
        5AM
        74°
        6AM
        73°
        6:45AM
        Sunrise
        7AM
        73°
        8AM
        74°
        9AM
        76°
        10AM
        77°
        11AM
        79°
        12PM
        81°
        1PM
        82°
        2PM
        83°
        3PM
        83°
        4PM
        84°
        5PM
        83°
        6PM
        83°
        Precipitation
        86%
        Thunderstorms possible around 7:30 PM
        Pollen
        Ragweed Pollen
        High
        Air Quality
        32
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.98 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point73°F
        5. Humidity 87%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KNHK Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 78°F 96°F 1983
        4. Low 68°F 59°F 43°F 1977
        5. Rain/Snow Depth
        6. Precipitation 0.19 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 78°F 90°F
        4. Low 68°F 59°F 46°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:45 AM 7:18 PM
        3. Civil Twilight 6:18 AM 7:45 PM
        4. Nautical Twilight 5:46 AM 8:16PM
        5. Astronomical Twilight 5:14 AM 8:48 PM
        1. Length of Visible Light 13h 27m
        2. Length of Day 12h 33m
        3. Tomorrow will be 2 minutes 27 seconds shorter
        1. Moon 8:19 AM 7:53 PM
        2. Waxing Crescent2% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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