Our Proprietary 10-Day Forecast

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Current warnings over Epsom, 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 Epsom, 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 Epsom, 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 Merrimack 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 Epsom, 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 Epsom, 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 Epsom, 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 Epsom, 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 Epsom, 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 Merrimack 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.
 
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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)
Epsom, New Hampshire Climate Summary

Temperature

    •   Average annual temperature: 44.5°F (7°C)
    •   Average January temperature: 23.6°F (-4.7°C)
    •   Average July temperature: 67.4°F (19.7°C)
    •   Record high temperature: 102°F (38.9°C)
    •   Record low temperature: -25°F (-31.7°C)

Precipitation

    •   Average annual precipitation: 43.9 inches (111.5 cm)
    •   Average snowfall: 53.1 inches (135 cm)
    •   Wettest month: November (4.4 inches)
    •   Driest month: February (2.6 inches)

Sunshine

    •   Average annual sunshine hours: 2,300
    •   Sunniest month: July (310 hours)
    •   Cloudiest month: December (150 hours)

Wind

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

Other

    •   Growing season: 150-160 days
    •   Hardiness zone: 5b
    •   Köppen climate classification: Dfb (Warm-summer Humid Continental)

Summary

Epsom, New Hampshire experiences a warm-summer humid continental climate, characterized by warm summers and cold, snowy winters. The average annual temperature is 44.5°F, with average January and July temperatures of 23.6°F and 67.4°F, respectively. The area receives moderate precipitation throughout the year, with an average annual amount of 43.9 inches. Snowfall is common during the winter months, averaging 53.1 inches annually. Epsom enjoys ample sunshine, with an average of 2,300 hours per year.

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

    •   Epsom is home to the Epsom Bog Natural Area, a 1,000-acre wetland ecosystem with diverse plant and animal life.

    •   The bog is a breeding ground for numerous bird species, including the American bittern and the northern harrier.

    •   The area is also rich in amphibians and reptiles, including the eastern tiger salamander and the painted turtle.

Science

    •   Epsom was the site of one of the first scientific experiments in America. In 1783, Benjamin Thompson (later Count Rumford) conducted experiments on the nature of heat at the Epsom Iron Works.

    •   Thompson's experiments helped to establish the concept of thermal conductivity.

Personalities

    •   Daniel Webster, the renowned orator and statesman, was born in Epsom in 1782.

    •   John Wentworth, the last royal governor of New Hampshire, also lived in Epsom.

    •   The town is named after Epsom, England, where Epsom salts were first discovered. Epsom salts are a type of magnesium sulfate used for medicinal purposes.

Tourist Attractions
1.Bear Brook State Park:

A sprawling park with over 7,000 acres of pristine forests, lakes, and hiking trails. It's a popular destination for hiking, fishing, camping, and wildlife viewing.

2.Penacook Lake:

A beautiful lake with crystal-clear waters and sandy beaches. It's a great place to swim, boat, fish, or simply relax on the shore.

3.Christa McAuliffe Planetarium:

A state-of-the-art planetarium that offers educational programs and shows about astronomy and space exploration. It's a great place to learn about the wonders of the universe.

Nearby Cities:

Chichester, NH
Pittsfield, NHBarnstead, NH
Pembroke, NHSuncook, NH
Northwood, NHCandia, NH
Strafford, NHConcord, NH
East Concord, NHHooksett, NH
Bow Bog, NHNottingham, NH
Barrington, NHCanterbury, NH
South Hooksett, NHRaymond, NH
Boston, MA
South Boston, MAWorcester, MA
Providence, RISpringfield, MA
Lowell, MACambridge, MA
Brockton, MANew Bedford, MA
Quincy, MALynn, MA
Newton, MA