Our Proprietary 10-Day Forecast

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Current warnings over Johnsonville, South Carolina
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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 Johnsonville, South Carolina 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 Johnsonville, South Carolina 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 Florence County, SC

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 Johnsonville, South Carolina

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 Johnsonville, SC 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 Johnsonville, SC

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 Johnsonville, SC, 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 Johnsonville, South Carolina

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 Florence County, South Carolina

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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  • 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)
Johnsonville, South Carolina

Climate Summary

Johnsonville, South Carolina, experiences a humid subtropical climate, characterized by hot, humid summers and mild, wet winters.

Temperature

    •   Average annual temperature: 64.4°F (18.0°C)
    •   Average summer temperature (June-August): 82.6°F (28.1°C)
    •   Average winter temperature (December-February): 47.6°F (8.7°C)
    •   Record high temperature: 105°F (40.6°C)
    •   Record low temperature: 10°F (-12.2°C)

Precipitation

    •   Average annual precipitation: 49.6 inches (1,260 mm)
    •   Average monthly precipitation in summer: 5.5 inches (140 mm)
    •   Average monthly precipitation in winter: 4.0 inches (100 mm)
    •   Wettest month: September (5.9 inches)
    •   Driest month: October (3.0 inches)

Humidity

    •   Average annual relative humidity: 76%
    •   High humidity in summer (above 80%)
    •   Lower humidity in winter (around 65%)

Wind

    •   Average wind speed: 10 mph (16 km/h)
    •   Prevailing wind direction: South-southeast

Other Climate Features

    •   Thunderstorms

Common in summer, especially in the afternoon and evening.

    •   Tornadoes

Relatively rare, but can occur during severe thunderstorms.

    •   Hurricanes

Johnsonville is located inland and not directly exposed to hurricanes, but can experience indirect impacts such as heavy rain and flooding.

    •   Droughts

Occasional, but not severe or prolonged.

Climate Change Impacts

Climate change is expected to impact Johnsonville's climate in the following ways:

    •   Increased temperatures, especially in summer
    •   More frequent and intense heat waves
    •   Increased precipitation and more extreme rainfall events
    •   More frequent and severe droughts

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

    •   Johnsonville is situated on the Black Mingo River, a tributary of the Great Pee Dee River. The area is home to a diverse ecosystem, including bald eagles, river otters, and numerous fish species.

    •   The Black Mingo Wilderness Area, located nearby, protects over 17,000 acres of bottomland hardwood forest, providing habitat for a variety of wildlife.

Science

    •   The Savannah River Site, a nuclear facility located 20 miles to the west, has played a significant role in nuclear research and development.

    •   Johnsonville is home to the Pee Dee Research and Education Center, a Clemson University research facility that focuses on agricultural and environmental issues.

Personalities

  • George Washington Carver:

    The renowned agricultural scientist and inventor spent his early childhood as a slave in Johnsonville.

  • Dr. Charles R. Drew:

    The pioneering blood transfusion researcher and surgeon was born in Johnsonville in 1904.

  • Dr. Bernard Harris:

    The first African American to walk in space, was born in Johnsonville in 1956.

    • Tourist Attractions
    1.Congaree National Park

    (20 miles from Johnsonville): Home to the largest intact bottomland hardwood forest in the United States, this park offers hiking, kayaking, and wildlife viewing opportunities.

    2.South Carolina State Museum

    (30 miles from Johnsonville): This museum features exhibits on natural history, science, and technology, as well as a planetarium and an IMAX theater.

    3.EdVenture Children's Museum

    (30 miles from Johnsonville): This interactive museum is designed for children ages 2-10 and features exhibits on science, technology, engineering, and math.

    Nearby Cities:

    Pamplico, SC
    Red Hill, SCLake City, SC
    Conway, SCRed Hill, SC
    Kingstree, SCFayetteville, NC
    Columbia, SCCharleston, SC
    Wilmington, NCNorth Charleston, SC
    Mount Pleasant, SCRock Hill, SC
    Summerville, SCSumter, SC
    Goose Creek, SCFlorence, SC
    Indian Trail, NC