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Merrimack Park, Maryland Weather Forecast
Merrimack Park, Maryland Weather
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Weather Forecast for Merrimack Park, Maryland : Montgomery County
Issued: 3:53 am EST Dec 14, 2025 Latitude: 38.9748325 Longitude: -77.1274788 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
80% chance of snow on Overnight 60% chance of snow on Sunday Increasing Clouds on Monday Sunny on Tuesday Partly Sunny on Wednesday Partly Sunny on Thursday Mostly Sunny on Friday Partly Sunny on Saturday
Low: 26°F High: 21 °F High: 30°F High: 37°F High: 48°F High: 51°F High: 48°F High: 46°F
Low: 16°F Low: 19°F Low: 26°F Low: 30°F Low: 39°F Low: 26°F  
Snow Snow Increasing Clouds Sunny Partly Sunny Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
WASHINGTON - (KDCA)
32°
Cloudy
Light Snow Mist
as of 5:17 AM EST
Rel. Humidity: 92%
Dew Point: 30°F
Visibility: 1 3/4 Miles
Pressure: 29.97 in.
Flight Rule: IFR
Wind Data
3 MPH
340° North
Cloud Level(s): Scattered at 800ft, Solid Overcast at 1500ft
Current Conditions at
WASH-DULLES - (KIAD)
32°
Feels like 23°F
Cloudy
Light Snow Mist
as of 5:23 AM EST
Rel. Humidity: 92%
Dew Point: 30°F
Visibility: 2 Miles
Pressure: 29.97 in.
Flight Rule: IFR
Wind Data
10 MPH
340° North
Cloud Level(s): Scattered at 800ft, Broken at 1300ft, Solid Overcast at 2200ft
Current Conditions at
ANDREWS AFB - (KADW)
34°
Mostly Cloudy
Light Snow Mist
as of 4:55 AM EST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 1 7/8 Miles
Pressure: 29.94 in.
Flight Rule: IFR
Wind Data
6 MPH
330° Northwest
Cloud Level(s): Broken at 500ft
Current Conditions at
FORT BELVOIR - (KDAA)
34°
Cloudy
Light Snow Mist
as of 5:23 AM EST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 1 1/2 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 700ft
80% chance of snow Overnight Overnight... Snow. The snow could be heavy at times. Low around 26. Northwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
60% chance of snow Sunday Sunday... Snow likely, mainly before 7am. The snow could be heavy at times. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 21 by 4pm. Northwest wind 11 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 16. Northwest wind 10 to 16 mph, with gusts as high as 28 mph.
Increasing Clouds on Monday Monday... Increasing clouds, with a high near 30. West wind 6 to 10 mph, with gusts as high as 18 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 19. Calm wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 37.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 26.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 48.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 30.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 51.
70% chance of rain Thursday Night Thursday Night... Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 48.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 26.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 46.
Current Radar Image


Sun Almanac for Merrimack Park, Maryland
Sunrise: 07:20 AM
Sunset: 4:47 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:16 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:23 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.