St. Marys, Georgia Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
St. Marys weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Rain38%0.13″94°77°—
- MondayJul 6Light Showers49%0.06″91°76°-3°
- TuesdayJul 7Showers42%0.10″100°77°+9°
- WednesdayJul 8Overcast37%—100°75°0°
- ThursdayJul 9Light Drizzle20%0.02″98°77°-2°
- FridayJul 10Partly Cloudy20%—102°77°+4°
- SaturdayJul 11Light Drizzle24%—102°75°0°
AQI 36 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 5.7 µg/m³, PM10 at 6.4 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 5.7 µg/m³, PM10 at 6.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.89
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:38 PM
- Moonset
- 11:40 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
St. Marys at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: February 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — St. Marys
- Sun94°77°38%
- Mon91°76°49%
- Tue100°77°42%
- Wed100°75°37%
- Thu98°77°20%
- Fri102°77°20%
- Sat102°75°24%
- Sun97°75°50%
- Mon95°72°49%
- Tue90°69°34%
- Wed97°73°23%
- Thu96°72°39%
- Fri95°73°46%
- Sat86°74°45%
- Sun93°74°51%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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.
SPC Convective Outlook
Storm Prediction Center — St. Marys
SPC includes St. Marys 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 St. Marys
- 31558