Our Proprietary 10-Day Forecast

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Current warnings over Alpharetta, Georgia
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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 Alpharetta, Georgia 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 Alpharetta, Georgia 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 Fulton County, GA

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 Alpharetta, Georgia

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 Alpharetta, GA 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 Alpharetta, GA

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 Alpharetta, GA, 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 Alpharetta, Georgia

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 Fulton County, Georgia

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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Alpharetta, Georgia Climate Summary

General Climate

    •   Alpharetta, Georgia has a humid subtropical climate, with hot, humid summers and mild winters.
    •   The average annual temperature is 62.3°F (16.8°C).
    •   The average annual precipitation is 51.14 inches (130 cm).

Summer

    •   Summer temperatures in Alpharetta are hot and humid, with average highs in the upper 80s to low 90s °F (30-34°C).
    •   The hottest month is July, with an average high of 90°F (32°C).
    •   Summer nights are warm and humid, with average lows in the mid to upper 70s °F (25-28°C).
    •   Thunderstorms are common in the summer, especially in the afternoon and evening.

Winter

    •   Winter temperatures in Alpharetta are mild, with average highs in the mid to upper 50s °F (13-15°C).
    •   The coldest month is January, with an average low of 34°F (1°C).
    •   Winter nights are cold, with average lows in the mid to upper 30s °F (3-4°C).
    •   Snowfall is rare in Alpharetta, but it does occur occasionally.

Spring and Fall

    •   Spring and fall temperatures in Alpharetta are mild and pleasant, with average highs in the 60s and 70s °F (18-23°C).
    •   Spring and fall nights are cool, with average lows in the 40s and 50s °F (7-12°C).

Precipitation

    •   Alpharetta receives an average of 51.14 inches (130 cm) of precipitation each year.
    •   The wettest month is March, with an average of 5.36 inches (13.6 cm) of rain.
    •   The driest month is October, with an average of 2.56 inches (6.5 cm) of rain.

Sunshine

    •   Alpharetta receives an average of 210 sunny days per year.
    •   The sunniest month is July, with an average of 9.3 hours of sunshine per day.
    •   The cloudiest month is December, with an average of 4.7 hours of sunshine per day.

Facts & Historical Information
(made with AI, use with caution)
Alpharetta, Georgia, boasts a rich natural history and scientific legacy.

Natural History

    •   Alpharetta's landscape was shaped by the Chattahoochee River, creating scenic bluffs and fertile floodplains.

    •   The city is home to the Big Creek Greenway, a 7-mile paved trail following a former railroad bed, offering opportunities for wildlife viewing.

    •   The Alpharetta Arboretum features over 400 species of trees and shrubs, providing a sanctuary for native flora and fauna.

Science

    •   Alpharetta is a hub for technology and innovation.

    •   The city is home to the Georgia Tech Research Institute (GTRI), a leading research center in areas such as aerospace, cybersecurity, and healthcare.

    •   The Alpharetta Innovation Center supports startups and entrepreneurs, fostering scientific advancements.

Personalities

    •   William H. Milton, a prominent railroad executive, founded Alpharetta in 1858.

    •   Dr. Sidney Lanier, a renowned poet and musician, resided in Alpharetta during the late 19th century.

    •   Dr. Jane Goodall, the renowned primatologist, has visited Alpharetta and inspired local conservation efforts.

Tourist Attractions
1.Avalon:

An upscale outdoor shopping, dining, and entertainment destination with over 500,000 square feet of retail space, restaurants, a movie theater, and a live music venue.

2.Alpharetta City Center:

A vibrant mixed-use development featuring a variety of shops, restaurants, apartments, and offices. The center also hosts events and festivals throughout the year.

3.Chattahoochee Nature Center:

A 127-acre nature preserve with hiking trails, wildlife exhibits, and educational programs. The center offers a unique opportunity to explore the natural beauty of the Chattahoochee River and its surrounding ecosystem.

Nearby Cities:

Milton, GA
Roswell, GAJohns Creek, GA
Peachtree Corners, GABerkeley Lake, GA
Dunwoody, GADuluth, GA
Norcross, GASandy Springs, GA
Doraville, GAChamblee, GA
Suwanee, GACumming, GA
Woodstock, GAHolly Springs, GA
North Atlanta, GASugar Hill, GA
Columbus, GA
Chattanooga, TNEast Chattanooga, TN
Athens, GAMacon, GA
Warner Robins, GAGreenville, SC
Auburn, ALSmyrna, GA
Cleveland, TNGainesville, GA
Phenix City, AL