5-day weather forecast Atlanta 21-07-2026
Weather forecast Atlanta Tuesday, July 21 21.07.2026: sunny, temperature from 25 °C to 36 °C.
Precipitation probability 57%. Wind up to 3.81 m/s (gusts 5.83 m/s). Air humidity 35–87%, atmospheric pressure 758–760 mm Hg, UV index up to 10.2.
Weather Alerts
Hide alertsFlash Flood Warning issued July 17 at 3:31PM EDT until July 17 at 9:30PM EDT by NWS Peachtree City GA
Flash Flood Warning
FFWFFC
The National Weather Service in Peachtree City has issued a
* Flash Flood Warning for...
Southeastern Cherokee County in north central Georgia...
Northeastern Cobb County in north central Georgia...
Northwestern DeKalb County in north central Georgia...
Northeastern Fulton County in north central Georgia...
West Central Gwinnett County in north central Georgia...
* Until 930 PM EDT.
* At 331 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 2 to 4 inches in 1 hour.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Peachtree Corners, Mountain Park, Sandy Springs, Roswell,
Alpharetta, Dunwoody, Milton, Duluth, Chamblee, Norcross,
Doraville, Berkeley Lake, North Atlanta, North Druid Hills,
Mechanicsville and Mount Bethel.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Severe Thunderstorm Warning issued July 17 at 4:02PM EDT until July 17 at 4:30PM EDT by NWS Peachtree City GA
Severe Thunderstorm Warning
At 402 PM EDT, a severe thunderstorm was located over Redan, or 8
miles east of Decatur, and is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Peachtree Corners, Lilburn, Norcross, Clarkston, Stone Mountain,
Lithonia, Pine Lake, Tucker, Mountain Park, Belmont, and Redan.
For your protection move to an interior room on the lowest floor of a
building.
Severe Thunderstorm Warning issued July 17 at 3:49PM EDT until July 17 at 4:30PM EDT by NWS Peachtree City GA
Severe Thunderstorm Warning
SVRFFC
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Central DeKalb County in north central Georgia...
Southwestern Gwinnett County in north central Georgia...
* Until 430 PM EDT.
* At 349 PM EDT, a severe thunderstorm was located over Redan, or 8
miles east of Decatur, and is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Peachtree Corners, Dunwoody, Lilburn, Chamblee, Norcross,
Doraville, Clarkston, Stone Mountain, Lithonia, Pine Lake, Tucker,
North Decatur, Mountain Park, Belmont, Redan, Mechanicsville, and
Scottdale.
For your protection move to an interior room on the lowest floor of a
building.
If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.
Severe Thunderstorm Warning issued July 17 at 4:11PM EDT until July 17 at 4:45PM EDT by NWS Peachtree City GA
Severe Thunderstorm Warning
At 411 PM EDT, a severe thunderstorm was located near Kelleytown, or
near McDonough, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
McDonough, Stockbridge, Lithonia, Hidden Valley Park, Panola Mountain
State Park, Flippen, Richardson Park, Arabia Mountain, Kelleytown,
and Eagles Landing.
For your protection move to an interior room on the lowest floor of a
building.
Severe Thunderstorm Warning issued July 17 at 4:07PM EDT until July 17 at 4:45PM EDT by NWS Peachtree City GA
Severe Thunderstorm Warning
SVRFFC
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Southwestern Rockdale County in north central Georgia...
Southeastern DeKalb County in north central Georgia...
Northwestern Henry County in north central Georgia...
* Until 445 PM EDT.
* At 406 PM EDT, a severe thunderstorm was located over Richardson
Park, or 9 miles southwest of Conyers, and is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
McDonough, Stockbridge, Lithonia, Hidden Valley Park, Panola
Mountain State Park, Flippen, Richardson Park, Arabia Mountain,
Kelleytown, and Eagles Landing.
For your protection move to an interior room on the lowest floor of a
building.
If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.
Sunrise 06:42
Sunset 20:46
Sunset 20:46
First Quarter53% illuminated
Moonrise 14:28 · Moonset 00:33
Moonrise 14:28 · Moonset 00:33
Chart
TableTue, Jul 21, 2026
Forecast from 25 °C to 36 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Tue, Jul 21, 2026
Atlanta on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.