5-day weather forecast Atlanta 20-07-2026

Weather forecast Atlanta Monday, July 20 20.07.2026: sunny, temperature from 26 °C to 34 °C.

Precipitation probability 36%. Wind up to 3.39 m/s (gusts 5.14 m/s). Air humidity 42–76%, atmospheric pressure 758–761 mm Hg, UV index up to 10.8.

Weather Alerts

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SevereJul 17, 03:31 PM — Jul 17, 09:30 PMTranslate with Google

Flash 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.

SevereJul 17, 04:02 PM — Jul 17, 04:30 PMTranslate with Google

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.

SevereJul 17, 03:49 PM — Jul 17, 04:30 PMTranslate with Google

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.

SevereJul 17, 04:11 PM — Jul 17, 04:45 PMTranslate with Google

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.

SevereJul 17, 04:07 PM — Jul 17, 04:45 PMTranslate with Google

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.

Sunrise 06:41
Sunset 20:46

First Quarter43% illuminated
Moonrise 13:23 · Moonset 00:03

Chart

Table

← Sun, Jul 19

Mon, Jul 20, 2026

Tue, Jul 21 →

Forecast from 26 °C to 34 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	28	28	27	27	26	26	26	26	27	28	30	32	33	34	34	32	32	32	30	27	27	28	27	27
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.18	0.02	0.13	0.19	0.41	0.32	0.28	0	0	0.05

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	14	15	19	14	17	18	11	14	14	16	20	14	27	55	83	88	86	71	88	77	86	29	37	87
Rain chance (%)	5	5	6	6	7	7	7	8	6	5	4	2	3	5	18	11	17	17	36	36	36	8	10	22

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	1.19	1	1.31	1.31	1.39	1.31	1.39	1.19	0.89	0.5	0.61	1.19	1.5	2	2.81	3.39	2.31	0.5	2.5	3.11	1.5	0.5	2.19	2.31
Wind gust (m/s)	1.97	1.67	2.11	2.14	2.28	2.11	2.28	1.97	1.22	0.58	0.69	1.39	1.72	2.31	3.22	4.19	2.97	0.64	3.33	5.14	2.67	0.92	3.97	3.92
Wind direction (°)	WSW 246°	W 264°	W 272°	W 263°	W 259°	W 274°	WNW 303°	NW 326°	N 358°	ESE 114°	SSE 152°	SSE 148°	SSE 163°	S 179°	S 186°	S 187°	SSW 192°	WSW 257°	N 356°	N 2°	N 354°	SE 128°	ESE 117°	SE 138°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	66	67	69	70	71	72	73	74	70	64	57	51	46	42	42	49	50	52	60	74	76	71	73	75

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	760	759	759	759	759	759	759	759	760	761	761	760	760	760	759	759	759	758	758	758	759	758	759	759

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.6	1.8	4	6.7	9.2	10.8	9.2	3.4	1.3	1.3	1.1	0.2	0	0	0	0

← Sun, Jul 19

Mon, Jul 20, 2026

Tue, Jul 21 →

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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.

Learn more about our methodology →