Our Proprietary 10-Day Forecast

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Current warnings over Portsmouth, Ohio
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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 Portsmouth, Ohio 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 Portsmouth, Ohio 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 Scioto County, OH

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 Portsmouth, Ohio

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 Portsmouth, OH 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 Portsmouth, OH

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 Portsmouth, OH, 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 Portsmouth, Ohio

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 Scioto County, Ohio

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)
Portsmouth, OH Climate Summary

Location

Scioto County, Ohio, USA
Coordinates

38.73°N 82.98°W
Elevation

590 feet (180 meters)

Climate Type

Humid continental (Köppen Dfa)

Average Annual Temperature

54.1°F (12.3°C)
    •   January: 31.6°F (-0.2°C)
    •   July: 74.8°F (23.8°C)

Average Annual Precipitation

42.7 inches (1084 mm)
    •   Driest Month: October (2.4 inches)
    •   Wettest Month: May (4.4 inches)

Average Annual Snowfall

16.4 inches (41.7 cm)
    •   Snowiest Month: January (5.3 inches)

Other Climate Data

    •   Average Number of Sunny Days

205

    •   Average Number of Rainy Days

120

    •   Average Number of Snow Days

14

    •   Average Wind Speed

9.3 mph (15 km/h)

    •   Average Relative Humidity

72%

Climate Description

Portsmouth, Ohio experiences a humid continental climate with hot, humid summers and cold, snowy winters. Temperatures can fluctuate significantly throughout the year, with summer highs reaching into the 90s Fahrenheit (30s Celsius) and winter lows dropping below freezing.

Precipitation is distributed fairly evenly throughout the year, with slightly drier conditions in the fall and wetter conditions in the spring. Snowfall is common during the winter months, but accumulations are generally light to moderate.

The climate of Portsmouth is influenced by its location in the Ohio River Valley, which can lead to frequent fog and cloud cover. The city also experiences occasional severe weather events, such as thunderstorms, tornadoes, and flooding.

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

    •   Portsmouth is located at the confluence of the Ohio and Scioto Rivers, creating a diverse ecosystem.

    •   The area is home to the Shawnee State Forest, a 63,000-acre natural preserve with hiking trails, waterfalls, and wildlife.

    •   The Ohio River provides a habitat for over 100 species of fish, including sturgeon and paddlefish.

Science

    •   Portsmouth was home to the first iron furnace west of the Allegheny Mountains, established in 1817.

    •   In the 19th century, the city became a major center for shipbuilding and the production of iron and steel.

    •   Today, Portsmouth is home to the Ohio University Southern Campus, which offers programs in science, technology, and engineering.

Personalities

    •   Ulysses S. Grant, the 18th President of the United States, lived in Portsmouth as a child.

    •   James A. Garfield, the 20th President of the United States, was born in Moreland Hills, just north of Portsmouth.

    •   Thomas Edison, the inventor of the light bulb, visited Portsmouth in 1889 to demonstrate his new technology.

Tourist Attractions
1.Portsmouth Murals

Portsmouth is home to a collection of over 20 murals that depict the city's history, culture, and people. The murals are located throughout the downtown area and are a great way to learn about the city's past and present.

2.Scioto County Historical Society Museum

The Scioto County Historical Society Museum is located in the former Portsmouth Public Library building. The museum houses a collection of artifacts and exhibits that tell the story of Scioto County's history.

3.Shawnee State Park

Shawnee State Park is located just a few miles outside of Portsmouth. The park offers a variety of activities, including hiking, fishing, camping, and boating. The park is also home to the Shawnee State Forest, which is a popular spot for hiking and mountain biking.

Nearby Cities:

South Shore, KY
West Portsmouth, OHNew Boston, OH
Rosemount, OHSciotodale, OH
Wheelersburg, OHFranklin Furnace, OH
Lucasville, OHGreenup, KY
Wurtland, KYWorthington, KY
Raceland, KYVanceburg, KY
Flatwoods, KYIronton, OH
Russell, KYPiketon, OH
Columbus, OH
Lexington-Fayette, KYCincinnati, OH
Meads, KYLexington, KY
Dayton, OHHamilton, OH
Springfield, OHKettering, OH
Charleston, WVMiddletown, OH
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