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      Severe Thunderstorm Watch
      until 8:00 PM EDT
      Elev 500 ft, 39.152 °N 77.014 °W

      Ashton-Sandy Spring, MD

      Ashton-Sandy Spring Station82°
      Updated: 4:01 PM EDT on October 16, 2026 (GMT -4)
      2 minutes ago
      77°
      57°
      82
      Feels Like 87
      Sunny
      N
      8
      Lower temperature is expected tomorrow
      Wundermap

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       Wundermap
      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
        Fri 10/16
        Low 49°f
         94% Precip. / 0.35 in
        Thunderstorms, some strong this evening followed by occasional showers overnight. Storms could contain damaging winds. Low 49F. Winds NW at 10 to 15 mph. Chance of rain 90%.
        Tomorrow
        Sat 10/17
        High 54°f
         15% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. Slight chance of a rain shower. High 54F. Winds N at 10 to 20 mph.
        Tomorrow night
        Sat 10/17
        Low 35°f
         1% Precip. / 0 in
        Clear. Widespread frost likely. Low around 35F. Winds N at 5 to 10 mph.
        Hourly Forecast
        Now
        77°
        5PM
        49%
        77°
        6PM
        91%
        69°
        6:27PM
        Sunset
        7PM
        85%
        66°
        8PM
        75%
        64°
        9PM
        62%
        62°
        10PM
        61%
        61°
        11PM
        60°
        12AM
        36%
        59°
        1AM
        58%
        58°
        2AM
        33%
        57°
        3AM
        46%
        56°
        4AM
        41%
        55°
        5AM
        39%
        53°
        6AM
        51°
        7AM
        50°
        7:19AM
        Sunrise
        8AM
        50°
        9AM
        50°
        10AM
        51°
        11AM
        51°
        12PM
        51°
        1PM
        53°
        2PM
        53°
        3PM
        53°
        4PM
        53°
        Precipitation
        91%
        Thunderstorms possible around 5:30 PM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        65
        Moderate
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.71 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point69°F
        5. Humidity 76%
        6. Rainfall 0.15 in
        7. Snow Depth 0 in
         KGAI Station History
        Almanac for October 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 69°F 89°F 1897
        4. Low 57°F 50°F 30°F 1944
        5. Rain/Snow Depth
        6. Precipitation 0.35 in - in -
        7. Snow 0 in - in -
        Almanac for October 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 59°F 68°F 90°F
        4. Low 39°F 49°F 26°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:18 AM 6:27 PM
        3. Civil Twilight 6:51 AM 6:54 PM
        4. Nautical Twilight 6:20 AM 7:25PM
        5. Astronomical Twilight 5:49 AM 7:56 PM
        1. Length of Visible Light 12h 2m
        2. Length of Day 11h 8m
        3. Tomorrow will be 2 minutes 27 seconds shorter
        1. Moon 1:18 PM 10:15 PM
        2. Waxing Crescent32% 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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