Our Proprietary 10-Day Forecast

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Current warnings over Winthrop, 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 Winthrop, 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 Winthrop, 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 Winthrop, 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 Winthrop, 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 Winthrop, 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 Winthrop, 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 Winthrop, 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.
 
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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)
Winthrop, MA Climate Summary

General Climate

    •   Humid continental climate with warm, humid summers and cold, snowy winters.
    •   Proximity to the Atlantic Ocean moderates temperatures, resulting in milder winters and cooler summers compared to inland areas.

Temperature

    •   Average Annual Temperature

49.5°F (9.7°C)

    •   Average Summer Temperature (June-August)

71.5°F (21.9°C)

    •   Average Winter Temperature (December-February)

31.5°F (-0.3°C)

    •   Record High Temperature

104°F (40°C) on July 22, 2011

    •   Record Low Temperature

-16°F (-26.7°C) on January 22, 1984

Precipitation

    •   Average Annual Precipitation

44.5 inches (113 cm)

    •   Average Snowfall

28.5 inches (72 cm)

    •   Wettest Month

November (4.7 inches)

    •   Driest Month

February (2.8 inches)

Sunshine

    •   Average Annual Sunshine

2,550 hours

    •   Sunniest Month

July (310 hours)

    •   Cloudiest Month

December (160 hours)

Wind

    •   Prevailing Wind Direction

West-southwest

    •   Average Wind Speed

12 mph (19 km/h)

Other Notable Climate Features

    •   Coastal storms

Winthrop is vulnerable to coastal storms, including nor'easters and hurricanes.

    •   Sea level rise

The town is experiencing sea level rise due to climate change, which poses a threat to coastal infrastructure and property.

    •   Heat waves

Heat waves can occur during the summer months, especially during periods of drought.

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

    •   Winthrop is home to the Belle Isle Marsh Reservation, a 281-acre salt marsh with diverse wildlife, including birds, fish, and reptiles.

    •   The town is also known for its abundance of horseshoe crabs, which gather on its beaches during spawning season.

Science

    •   Winthrop was the site of one of the first smallpox vaccination clinics in the United States, established by Dr. Benjamin Waterhouse in 1800.

    •   The town is home to the Massachusetts Institute of Technology (MIT) Endicott House, a research facility dedicated to marine science and engineering.

Personalities

    •   John Winthrop, Jr. (1606-1676), the first governor of Connecticut, lived in Winthrop and founded the town's first church.

    •   Henry David Thoreau (1817-1862), the naturalist and writer, visited Winthrop and wrote about its natural beauty in his book \

Tourist Attractions
1.Belle Isle Marsh Reservation

is a 281-acre conservation area located in Winthrop, MA. The reservation features a variety of habitats, including salt marsh, upland forest, and freshwater wetlands. Visitors can enjoy hiking, biking, kayaking, and fishing in the reservation.

2.Winthrop Beach

is a popular beach located in Winthrop, MA. The beach offers swimming, sunbathing, and fishing. Visitors can also enjoy the views of Boston Harbor and the Boston skyline.

3.Fort Banks

is a historic fort located in Winthrop, MA. The fort was built in the 19th century to protect Boston Harbor. Visitors can explore the fort's grounds and learn about its history.

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