Smyrna, Georgia Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Smyrna weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast20%—96°71°—
- SundayJul 5Rain19%0.18″96°74°0°
- MondayJul 6Overcast47%—95°72°-1°
- TuesdayJul 7Overcast34%—91°76°-4°
- WednesdayJul 8Showers16%—93°76°+2°
- ThursdayJul 9Showers25%—91°74°-2°
- FridayJul 10Light Drizzle32%—94°75°+3°
AQI 71 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 25.2 µg/m³ (AQI 81) with a 0.85 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm 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 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 66 now. With UV 5.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 46 around 1 PM.
- Present
- AQI 66
- UV peak
- 5.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 25.2 µg/m³ (AQI 81) with a 0.85 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:24 PM
- Moonset
- 10:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Smyrna at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: March 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 30080, 30082
16-Day Forecast — Smyrna
- Sat96°71°20%
- Sun96°74°19%
- Mon95°72°47%
- Tue91°76°34%
- Wed93°76°16%
- Thu91°74°25%
- Fri94°75°32%
- Sat91°76°45%
- Sun92°75°24%
- Mon86°71°13%
- Tue82°69°12%
- Wed80°67°23%
- Thu89°67°30%
- Fri74°71°23%
- Sat92°71°19%
- Sun88°74°36%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Smyrna
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Smyrna
SPC includes Smyrna in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Cicadas claim the scorching afternoon
Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
The year in Smyrna tops out in July (~79°F) and dips lowest in January (~42°F), with December wettest at 4.9 inches and October driest at 2.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 42° | 4.6″ | 15 |
| February | 45° | 3.9″ | 13 |
| March | 53° | 4.6″ | 15 |
| April | 61° | 3.8″ | 14 |
| May | 69° | 2.9″ | 13 |
| June | 77° | 3.8″ | 16 |
| July | 79° | 4.2″ | 22 |
| August | 78° | 4.7″ | 23 |
| September | 73° | 2.9″ | 14 |
| October | 64° | 2.1″ | 10 |
| November | 52° | 3.6″ | 12 |
| December | 45° | 4.9″ | 15 |
Regional context
Per NOAA NCEI 1991-2020 normals, Smyrna runs from a 42°F January mean to 79°F in July, a 37°F seasonal spread, with near 46 inches of precipitation across about 181 wet days.
Smyrna's precipitation spreads evenly: December peaks at 4.9 inches on 14.5 wet days, while October holds 2.1 inches over 9.7 — no month dominates Smyrna's rain calendar. It is a balanced pattern Smyrna shares with places like Vinings, GA, Fair Oaks, GA and Mableton, GA.
Smyrna reaches its last hard frost near mid-March; that is the cue for peas, lettuce, spinach, and radishes. Heat-demanding starts go out a fortnight on in Smyrna, after the soil warms and cold snaps clear. By mid-December, frost is back in Smyrna — protect or harvest anything tender. Smyrna's low ground holds frost later into spring than Smyrna's benches, which run 3-5 days ahead.
Similar climates: Vinings, GA, Fair Oaks, GA, Mableton, GA, Marietta, GA, Austell, GA.
Frequently asked
- When does it freeze in Smyrna?
- Frost typically leaves Smyrna by mid-March and returns to Smyrna near mid-December.
- What is the rainy season in Smyrna?
- Rainfall in Smyrna peaks in December near 4.9 inches, out of about 46 inches annually.
- What is the warmest month in Smyrna?
- The warmest stretch in Smyrna comes in July, around 79°F on average.
- What is the coldest month in Smyrna?
- On average January is the chilliest month in Smyrna, about 42°F.
- When can I start a vegetable garden in Smyrna?
- Time tomatoes in Smyrna for two weeks after mid-March; peas and greens start at Smyrna's frost line.
- How many rainy days does Smyrna get?
- Smyrna records around 181 days of measurable precipitation annually.
- What hardiness zone is Smyrna?
- Smyrna's USDA zone comes from its January mean (42°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Smyrna?
- Smyrna'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 Smyrna?
- See this week's day-by-day rain chances for Smyrna in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Smyrna?
- Current conditions for Smyrna and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Smyrna forecast updated?
- The Smyrna forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Smyrna?
- Today's sunrise and sunset times for Smyrna 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 Smyrna?
- The next few days in Smyrna's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Smyrna, Georgia occupies a humid subtropical zone, with January means near 42°F and July around 79°F — a 37°F swing.
Across the year, Smyrna collects about 46 inches of precipitation over roughly 181 days with measurable rain or snow.
Latitude 33.9°N gives Smyrna its 37°F swing, and with it the rhythm of Smyrna's growing season.
ZIP codes in Smyrna
- 30126
- 30082
- 30080
- 30081