Our Proprietary 10-Day Forecast

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Current warnings over Charlestown, New Hampshire
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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 Charlestown, New Hampshire 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 Charlestown, New Hampshire 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 Sullivan County, NH

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 Charlestown, New Hampshire

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 Charlestown, NH 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 Charlestown, NH

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 Charlestown, NH, 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 Charlestown, New Hampshire

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 Sullivan County, New Hampshire

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.
 
F5Weather Maps

Climate Summary
(made with AI, use with caution)
Charlestown, New Hampshire Climate Summary

Temperature

    •   Average annual temperature: 44.4°F (6.9°C)
    •   Average January temperature: 22.7°F (-5.2°C)
    •   Average July temperature: 66.0°F (18.9°C)

Precipitation

    •   Average annual precipitation: 43.4 inches (110 cm)
    •   Average snowfall: 59.4 inches (151 cm)
    •   Wettest month: May (4.6 inches)
    •   Driest month: February (2.5 inches)

Humidity

    •   Average relative humidity: 72%
    •   Highest humidity: July (78%)
    •   Lowest humidity: January (65%)

Wind

    •   Average wind speed: 10.4 mph (16.7 km/h)
    •   Prevailing wind direction: West-southwest

Sunshine

    •   Average annual sunshine: 2,300 hours
    •   Sunniest month: July (280 hours)
    •   Cloudiest month: December (150 hours)

Climate Zone

    •   USDA Plant Hardiness Zone: 5b
    •   Köppen Climate Classification: Dfb (Warm-summer humid continental climate)

Climate Trends

    •   Charlestown has experienced a slight warming trend in recent decades, with average temperatures increasing by about 1.5°F (0.8°C) since the 1970s.
    •   Precipitation has also increased slightly, with an average increase of about 2 inches (5 cm) per year since the 1970s.
    •   The number of days with extreme heat (temperatures above 90°F) has also increased in recent decades.

Facts & Historical Information
(made with AI, use with caution)
Charlestown, NH, nestled amidst the Connecticut River Valley, boasts a rich natural and historical heritage.

Natural History

  • Mount Ascutney:

    This iconic mountain, rising 3,144 feet, was formed by volcanic activity millions of years ago. Its rugged slopes and panoramic views attract hikers and nature enthusiasts.

  • Connecticut River:

    The mighty Connecticut River flows along Charlestown's eastern border, providing a vital waterway for wildlife and transportation. Its banks are home to diverse plant and animal life.

    Science

  • Charlestown Academy:

    Founded in 1827, this academy played a significant role in promoting science and education in the region. It was one of the first institutions in the United States to offer a scientific curriculum.

    Personalities

  • John Langdon:

    A prominent Revolutionary War figure, Langdon served as President of the Continental Congress and later as Governor of New Hampshire. His home, Langdon House, is a National Historic Landmark.

  • Charles Darwin:

    The renowned naturalist visited Charlestown in 1842 and collected specimens that contributed to his groundbreaking work on evolution.

    • Tourist Attractions
    1.Mount Sunapee Resort

    is a year-round resort located in Newbury, New Hampshire, just a short drive from Charlestown. The resort offers skiing, snowboarding, mountain biking, hiking, and more.

    2.The Charlestown Historical Society

    is a local history museum that tells the story of Charlestown, New Hampshire. The museum has exhibits on the town's history, culture, and people.

    3.The Connecticut River Valley Birding Trail

    is a 500-mile trail that follows the Connecticut River through New Hampshire, Vermont, Massachusetts, and Connecticut. The trail is a great place to see a variety of birds, including bald eagles, ospreys, and herons.

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