Our Proprietary 10-Day Forecast

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Current warnings over South Boston, Massachusetts
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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 South Boston, Massachusetts 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 South Boston, Massachusetts 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 Suffolk County, MA

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 South Boston, Massachusetts

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 South Boston, MA 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 South Boston, MA

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 South Boston, MA, 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 South Boston, Massachusetts

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 Suffolk County, Massachusetts

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:
  • European ECMWF HRES
  • 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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
South Boston, Massachusetts Climate Summary

Temperature

    •   Average annual temperature: 51.8°F (11.0°C)
    •   Average summer temperature (June-August): 73.4°F (23.0°C)
    •   Average winter temperature (December-February): 31.4°F (-0.3°C)
    •   Record high temperature: 104°F (40°C)
    •   Record low temperature: -13°F (-25°C)

Precipitation

    •   Average annual precipitation: 42.3 inches (1074 mm)
    •   Average snowfall: 26.3 inches (668 mm)
    •   Wettest month: March (4.4 inches)
    •   Driest month: February (2.7 inches)

Humidity

    •   Average annual relative humidity: 70%
    •   Highest humidity: Summer (75-80%)
    •   Lowest humidity: Winter (60-65%)

Wind

    •   Average wind speed: 12.6 mph (20.3 km/h)
    •   Prevailing wind direction: West-northwest

Sunshine

    •   Average annual sunshine: 2,677 hours
    •   Sunniest month: July (310 hours)
    •   Cloudiest month: December (160 hours)

Climate Zone

    •   Humid subtropical climate (Köppen climate classification: Cfa)

Additional Climate Characteristics

    •   South Boston experiences all four seasons, with warm, humid summers and cold, snowy winters.
    •   The city is located on the coast, which moderates temperatures and increases humidity.
    •   The area is prone to coastal storms and flooding, especially during the winter months.
    •   Heat waves and droughts can occur during the summer, while ice storms and blizzards are possible during the winter.

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

    •   South Boston's Castle Island is home to Fort Independence, a 19th-century fort built on the site of a colonial fortification. It played a vital role in defending Boston Harbor during the War of 1812 and the American Civil War.

    •   The island is also a bird sanctuary, providing habitat for migratory species such as egrets, herons, and cormorants.

Science

    •   South Boston was the site of the first successful American submarine, the Turtle, built by David Bushnell in 1775.

    •   The neighborhood was also home to the Boston Naval Shipyard, which played a major role in the construction and repair of U.S. Navy ships from 1801 to 1974.

Personalities

    •   John F. Kennedy, the 35th President of the United States, was born in South Boston in 1917.

    •   The neighborhood was also home to James Michael Curley, a colorful politician who served as mayor of Boston four times and as governor of Massachusetts.

    •   Baseball legend Ted Williams grew up in South Boston and played for the Boston Red Sox from 1939 to 1960.

Tourist Attractions
1.Boston Tea Party Ships & Museum:

This historic attraction allows visitors to experience a reenactment of the famous Boston Tea Party, a key event in the American Revolution.

2.Castle Island:

A scenic park with a historic fort, offering stunning views of Boston Harbor and the city skyline. Visitors can explore the fort, enjoy picnics, and go for walks or bike rides along the waterfront.

3.South Boston Waterfront:

A vibrant neighborhood with a mix of historical sites, restaurants, shops, and entertainment venues. Visitors can stroll along the harbor walk, visit the Boston Children's Museum, or take a ferry to the Boston Harbor Islands National Recreation Area.

Nearby Cities:

Boston, MA
Brookline, MAJamaica Plain, MA
Cambridge, MAChelsea, MA
Winthrop, MASomerville, MA
Everett, MAMilton, MA
Revere, MAQuincy, MA
Malden, MAMedford, MA
Watertown, MAHull, MA
Belmont, MAArlington, MA
Worcester, MA
Providence, RISpringfield, MA
New Haven, CTHartford, CT
Lowell, MAManchester, NH
Waterbury, CTBrockton, MA
New Bedford, MALynn, MA
Fall River, MA