Our Proprietary 10-Day Forecast

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Current warnings over Mechanicsville, 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 Mechanicsville, 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 Mechanicsville, 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 St. Mary

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 Mechanicsville, 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 Mechanicsville, 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 Mechanicsville, 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 Mechanicsville, 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 Mechanicsville, 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 St. Mary

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.
 
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  • 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)
Climate Summary for Mechanicsville, MD

Temperature

    •   Average annual temperature: 55.6°F (13.1°C)
    •   Average summer temperature (June-August): 76.4°F (24.7°C)
    •   Average winter temperature (December-February): 33.9°F (1.1°C)
    •   Record high temperature: 106°F (41.1°C)
    •   Record low temperature: -13°F (-25°C)

Precipitation

    •   Average annual precipitation: 43.2 inches (109.7 cm)
    •   Average snowfall: 18.4 inches (46.7 cm)
    •   Wettest month: July (5.0 inches or 12.7 cm)
    •   Driest month: February (2.6 inches or 6.6 cm)

Humidity

    •   Average annual relative humidity: 72%
    •   Highest average relative humidity: January (78%)
    •   Lowest average relative humidity: May (65%)

Wind

    •   Average annual wind speed: 10.1 mph (16.3 km/h)
    •   Most frequent wind direction: West-southwest
    •   Strongest winds: March (11.8 mph or 19 km/h)
    •   Calmest winds: August (8.3 mph or 13.4 km/h)

Sunshine

    •   Average annual sunshine: 2,652 hours
    •   Sunniest month: July (307 hours)
    •   Cloudiest month: December (167 hours)

Climate Type

    •   Humid subtropical climate (Köppen Cfa)

Additional Information

    •   Mechanicsville is located in Hardiness Zone 7a, which means that the average annual minimum temperature is between 0°F and 5°F (-17.8°C and -15°C).
    •   The growing season in Mechanicsville typically lasts from mid-April to mid-October, with an average of 200 frost-free days per year.
    •   Mechanicsville is located in an area that is prone to severe thunderstorms, tornadoes, and hail.
    •   The town is also located near the Chesapeake Bay, which can have a significant impact on the local climate.

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

    •   Mechanicsville lies within the Chesapeake Bay watershed, renowned for its diverse marine life and migratory bird populations.

    •   The Patuxent River, which flows through the town, supports a variety of fish species, including striped bass, bluefish, and catfish.

    •   The surrounding forests are home to a rich variety of plant and animal species, including bald eagles, white-tailed deer, and black bears.

Science

    •   Mechanicsville is home to the Patuxent River Naval Air Station, a major research and development center for the U.S. Navy.

    •   The station has been involved in numerous scientific advancements, including the development of radar and satellite communications.

    •   Scientists at the station study the environmental impact of military operations and work to protect the natural resources of the Chesapeake Bay.

Personalities

    •   Dr. James Barry, an Irish surgeon and explorer, lived in Mechanicsville in the early 19th century.

    •   Barry served as a military surgeon during the War of 1812 and later explored the American West.

    •   He is known for his groundbreaking work in military medicine and his controversial life story, which involved disguising himself as a man for decades.

Tourist Attractions
1.Calvert Cliffs State Park

is a popular destination for hiking, camping, and fishing. The park is home to a variety of plant and animal life, including bald eagles, ospreys, and deer.

2.Patuxent River Naval Air Museum

is a museum dedicated to the history of naval aviation. The museum has a collection of over 100 aircraft, including the F-14 Tomcat and the A-6 Intruder.

3.Chesapeake Beach Railway Museum

is a museum dedicated to the history of railroads in the Chesapeake Bay region. The museum has a collection of over 50 locomotives and cars, including the B&O Railroad's \

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