Lilburn, Georgia Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lilburn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle21%0.01″96°71°—
- SundayJul 5Drizzle33%0.05″97°74°+1°
- MondayJul 6Light Drizzle45%0.02″95°74°-2°
- TuesdayJul 7Thunderstorm35%—93°77°-2°
- WednesdayJul 8T-storm w/ Hail16%—88°74°-5°
- ThursdayJul 9Heavy Drizzle22%—92°74°+4°
- FridayJul 10Light Drizzle26%—95°77°+3°
AQI 66 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 23.1 µg/m³ (AQI 77) with a 0.86 fine-to-coarse ratio and 5 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 58 now. With UV 5.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 42 around 1 PM.
- Present
- AQI 58
- UV peak
- 5.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 42
PM × Wind × Precip
PM2.5 at 23.1 µg/m³ (AQI 77) with a 0.86 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- light
- 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
- 11:22 PM
- Moonset
- 10:48 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Lilburn at a glance
- Today vs. normal: 6°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 code: 30047
16-Day Forecast — Lilburn
- Sat96°71°21%
- Sun97°74°33%
- Mon95°74°45%
- Tue93°77°35%
- Wed88°74°16%
- Thu92°74°22%
- Fri95°77°26%
- Sat94°78°37%
- Sun93°75°22%
- Mon89°74°13%
- Tue77°69°11%
- Wed80°67°24%
- Thu88°66°32%
- Fri74°71°31%
- Sat88°70°35%
- Sun92°74°34%
Forecast data from Open-Meteo (CC BY 4.0).
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 — Lilburn
SPC includes Lilburn 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 Lilburn
- 30047
- 30048