Atlanta, Georgia Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Atlanta weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 5:41 AM EDT · Open-Meteo
- TodaySep 21Clear17%—92°69°—
- TuesdaySep 22Clear52%0.71″92°70°0°
- WednesdaySep 23Light Showers35%0.01″77°68°-15°
- ThursdaySep 24Overcast13%—70°63°-7°
- FridaySep 25Overcast——80°61°+10°
- SaturdaySep 26Overcast——82°65°+2°
- SundaySep 27Overcast——84°63°+2°
Air quality now AQI 61 · Moderate
AQI 61 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 30.0 µg/m³ (AQI 90) with a 0.97 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 1 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 30.0 µg/m³ (AQI 90) with a 0.97 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.97
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:53 PM
- Moonset
- 2:16 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Atlanta at a glance
- Today vs. normal: Today averages 81°F (high 92°F, low 69°F), 9°F above the 72°F normal for Sep 21
- Last frost: March 24 (1991–2020 median, NOAA station 9 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Atlanta
- Mon92°69°17%
- Tue92°70°52%
- Wed77°68°35%
- Thu70°63°13%
- Fri80°61°1%
- Sat82°65°2%
- Sun84°63°4%
- Mon83°64°6%
- Tue82°67°13%
- Wed86°68°22%
- Thu89°72°13%
- Fri85°65°8%
- Sat84°69°13%
- Sun85°70°16%
- Mon86°66°24%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Atlanta
Interactive wind and temperature map centered on Atlanta — it loads in your browser. Open the full weather map.
Right now in the garden
Late season
As of September 21, the first frost (around November 8) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Atlanta
SPC has placed Atlanta in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Atlanta
Atlanta sits in Fulton County, where the year’s longest day runs 14h 24m of daylight and its shortest just 9h 54m — a swing of +4h 30m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Atlanta is the state’s largest city. The nearest town Atlanta tracks is Gainesville, roughly 50 miles to the NE.
Air quality in Atlanta
Air quality in Atlanta’s county has held roughly steady since 2020; its cleanest year on record was 2025 (median AQI 49). See the full air-quality history for Atlanta.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | radishes |
| April | lettuce, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | beans, squash | lettuce, peas, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | — | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
In Atlanta, July runs warmest near 79°F and January coldest around 42°F, while December is the wettest month (4.9 inches) and October the driest (2.1 inches).
| Month | Mean temp | Precip |
|---|---|---|
| January | 42° | 4.6″ |
| February | 45° | 3.9″ |
| March | 53° | 4.6″ |
| April | 61° | 3.8″ |
| May | 69° | 2.9″ |
| June | 77° | 3.8″ |
| July | 79° | 4.2″ |
| August | 78° | 4.7″ |
| September | 73° | 2.9″ |
| October | 64° | 2.1″ |
| November | 52° | 3.6″ |
| December | 45° | 4.9″ |
Regional context
Similar climates Druid Hills, GA, North Druid Hills, GA, East Point, GA
Drawing on modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo), Atlanta's January averages 42°F and July 79°F — 37°F apart — while precipitation totals roughly 46 inches.
Rainfall in Atlanta splits evenly between the seasons: December tops out at 4.9 inches, and October logs 2.1 inches — neither half of Atlanta's year dominates. That lines Atlanta up with places like Druid Hills, GA, North Druid Hills, GA and East Point, GA, fed by overlapping storm tracks.
By March 24 the frosts ease in Atlanta, opening the season for peas, lettuce, spinach, and radishes. In Atlanta, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Atlanta's frost date. Atlanta's window closes around November 8 as Atlanta's overnight lows return below freezing. In about half of years, Atlanta's last freeze comes after March 24.
Similar climates: Druid Hills, GA, North Druid Hills, GA, East Point, GA, Hapeville, GA, Decatur, GA.
Frequently asked
- When does it freeze in Atlanta?
- In Atlanta, expect the last spring frost near March 24; Atlanta's first autumn frost comes around November 8.
- What is the rainy season in Atlanta?
- December is the wettest month in Atlanta, about 4.9 inches on average; the year totals roughly 46 inches.
- What is the warmest month in Atlanta?
- Atlanta peaks in July, when the mean runs near 79°F.
- What is the coldest month in Atlanta?
- January is Atlanta's coldest month, averaging about 42°F.
- When can I start a vegetable garden in Atlanta?
- Around March 24, start frost-hardy crops in Atlanta; tomatoes and basil belong a fortnight later.
- What hardiness zone is Atlanta?
- With January around 42°F, Atlanta's zone reflects that minimum — the USDA ZIP map confirms Atlanta's band.
- What is the 10-day forecast for Atlanta?
- Atlanta's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Atlanta?
- See this week's day-by-day rain chances for Atlanta in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Atlanta?
- Current conditions for Atlanta and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Atlanta forecast updated?
- The Atlanta forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Atlanta?
- Today's sunrise and sunset times for Atlanta are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Atlanta?
- The next few days in Atlanta's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Atlanta sits at 33.8°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Atlanta
- 30301
- 30302
- 30303
- 30304
- 30305
- 30306
- 30307
- 30308
- 30309
- 30310
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- 30312
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- 30398
- 31106
- 31107
- 31126
- 31139
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- 31193