Smyrna, Georgia Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Smyrna weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——85°55°—
- FridayJun 5Overcast——87°62°+2°
- SaturdayJun 6Overcast——91°64°+4°
- SundayJun 7Light Drizzle12%0.01″82°71°-9°
- MondayJun 8Light Drizzle28%—88°69°+6°
- TuesdayJun 9Heavy Drizzle38%0.01″85°69°-3°
- WednesdayJun 10Overcast23%—88°69°+3°
Ozone at AQI 56. AQI up 62 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 56. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
- Present
- AQI 56
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 10.3 µg/m³, PM10 at 11.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:23 AM
- Moonset
- 2:58 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Smyrna at a glance
- Today vs. normal: 80°F — typical for the season
- Last frost: March 10 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, 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.
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
Smyrna's warmest month is July (~80°F mean) and its coldest is January (~44°F). Rainfall peaks in July (5.0 inches) and bottoms out in September (3.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 44° | 4.3″ | 7 |
| February | 48° | 4.3″ | 7 |
| March | 54° | 4.5″ | 7 |
| April | 62° | 3.6″ | 6 |
| May | 70° | 3.6″ | 7 |
| June | 77° | 3.8″ | 7 |
| July | 80° | 5.0″ | 7 |
| August | 79° | 4.0″ | 6 |
| September | 74° | 3.4″ | 5 |
| October | 63° | 3.6″ | 4 |
| November | 52° | 3.8″ | 5 |
| December | 46° | 4.2″ | 7 |
Regional context
Smyrna sits within a humid subtropical climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Atlanta, GA, Augusta, GA, Savannah, GA, Columbus, GA, Gainesville, GA.
Frequently asked
- When does it freeze in Smyrna?
- Smyrna's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Smyrna?
- July is the wettest month with about 5.0 inches of rain on average; the city receives roughly 48 inches annually.
- What is the warmest month in Smyrna?
- July is typically warmest, averaging about 80°F.
- What is the coldest month in Smyrna?
- January is typically coldest, averaging about 44°F.
- When can I start a vegetable garden in Smyrna?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-March); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Smyrna get?
- Smyrna averages about 75 rainy days per year.
- What hardiness zone is Smyrna?
- Smyrna's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Smyrna, Georgia sits in a humid subtropical climate zone. January means hover near 44°F while July averages 80°F — a 36°F seasonal swing.
Across the year, Smyrna receives about 48 inches of precipitation spread over roughly 75 rainy days.
The rhythm of the year is set by latitude (33.9°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.