Our Proprietary 10-Day Forecast

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Current warnings over Glenmont, Maryland
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Glenmont, Maryland red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Glenmont, Maryland red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Howard County, MD

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Glenmont, Maryland

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Glenmont, MD please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Glenmont, MD

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Glenmont, MD, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Glenmont, Maryland

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Howard County, Maryland

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
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Climate Summary
(made with AI, use with caution)
Glenmont, Maryland Climate Summary

Temperature

    •   Average annual temperature: 57.2°F (14°C)
    •   Average summer temperature: 77.2°F (25.1°C)
    •   Average winter temperature: 37.2°F (2.9°C)
    •   Record high temperature: 106°F (41.1°C)
    •   Record low temperature: -15°F (-26.1°C)

Precipitation

    •   Average annual precipitation: 42.7 inches (108.4 cm)
    •   Average snowfall: 19.7 inches (50.0 cm)
    •   Wettest month: July (4.9 inches or 12.4 cm)
    •   Driest month: February (2.5 inches or 6.4 cm)

Climate Type

    •   Humid subtropical climate (Köppen climate classification: Cfa)

Additional Information

    •   Glenmont is located in USDA plant hardiness zone 7a.
    •   The growing season in Glenmont lasts for an average of 190 days, from April 15 to October 15.
    •   The average annual sunshine in Glenmont is 2,600 hours.
    •   The prevailing wind direction in Glenmont is from the west.

Overall, Glenmont has a temperate climate with four distinct seasons. Summers are warm and humid, winters are cold and snowy, and spring and fall are mild.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Glenmont is home to the Northwest Branch Stream Valley Park, a 600-acre natural area with diverse flora and fauna, including over 200 bird species.

    •   The park features a 10-mile paved trail, perfect for hiking, biking, and birdwatching.

Science

    •   The National Institute of Standards and Technology (NIST) has its headquarters in Glenmont, conducting research in physics, materials science, and engineering.

    •   NIST is known for developing the International System of Units (SI) and maintaining the U.S. time and frequency standards.

Personalities

  • William Bowie (1872-1940):

    A geodesist and geophysicist who served as the second director of the U.S. Coast and Geodetic Survey. He lived in Glenmont and is buried in the town cemetery.

  • Helen Keller (1880-1968):

    The deaf-blind author, lecturer, and activist lived in Glenmont for several years in the early 1900s. Her home, known as the Helen Keller House, is now a museum.

    • Tourist Attractions
    1.Brookside Gardens

    is a 50-acre botanical garden located in Wheaton, Maryland. The garden features a variety of plants, including trees, shrubs, flowers, and herbs. There are also several walking trails and a visitor center.

    2.Glenstone Museum

    is a contemporary art museum located in Potomac, Maryland. The museum features a collection of paintings, sculptures, and other works of art. There are also several gardens and walking trails on the museum grounds.

    3.National Zoo

    is a zoo located in Washington, D.C. The zoo is home to over 2,000 animals from all over the world. There are also several exhibits and educational programs offered at the zoo.

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