St. Mary, Kentucky Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Mary weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——88°70°—
- SundayJul 5Rain31%0.16″88°73°0°
- MondayJul 6Overcast19%—83°70°-5°
- TuesdayJul 7Light Drizzle13%—80°65°-3°
- WednesdayJul 8Overcast——84°64°+4°
- ThursdayJul 9Overcast27%—87°65°+3°
- FridayJul 10Thunderstorm56%—87°70°0°
AQI 45 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 71 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 71
- UV peak
- 3.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 71
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.89 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- 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
- 11:32 PM
- Moonset
- 10:49 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
St. Mary at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Mary
- Sat88°70°4%
- Sun88°73°31%
- Mon83°70°19%
- Tue80°65°13%
- Wed84°64°7%
- Thu87°65°27%
- Fri87°70°56%
- Sat82°71°47%
- Sun78°59°29%
- Mon76°55°14%
- Tue79°57°10%
- Wed83°59°23%
- Thu83°66°39%
- Fri85°67°35%
- Sat76°68°48%
- Sun75°67°45%
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 — St. Mary
SPC includes St. Mary 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. Mary
- 40033