Marietta, Georgia Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marietta weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast20%—95°71°—
- SundayJul 5Heavy Drizzle18%0.06″95°74°0°
- MondayJul 6Overcast51%—95°72°0°
- TuesdayJul 7Overcast33%—90°76°-5°
- WednesdayJul 8Showers16%—93°75°+3°
- ThursdayJul 9Showers25%—91°74°-2°
- FridayJul 10Light Drizzle34%—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 4 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 4 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
Marietta at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: March 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 30008, 30060, 30062, 30064, 30066, 30067, 30068, 30090
16-Day Forecast — Marietta
- Sat95°71°20%
- Sun95°74°18%
- Mon95°72°51%
- Tue90°76°33%
- Wed93°75°16%
- Thu91°74°25%
- Fri94°75°34%
- Sat91°76°48%
- Sun91°74°23%
- Mon85°71°13%
- Tue82°68°11%
- Wed80°66°23%
- Thu89°67°30%
- Fri74°71°23%
- Sat92°70°19%
- Sun87°74°36%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Marietta
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 — Marietta
SPC includes Marietta 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.
ZIP codes in Marietta
- 30090
- 30060
- 30062
- 30064
- 30067
- 30008
- 30006
- 30007