Fairfield, Kentucky Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Fairfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——87°69°—
- SundayJul 5Heavy Drizzle37%0.10″86°73°-1°
- MondayJul 6Light Drizzle21%—83°69°-3°
- TuesdayJul 7Light Drizzle15%—79°65°-4°
- WednesdayJul 8Overcast——86°64°+7°
- ThursdayJul 9Overcast30%—88°66°+2°
- FridayJul 10Light Drizzle49%—90°72°+2°
AQI 48 (Good), driven by Ozone. AQI up 10 over the last 6 hours (gradual rise). Ozone at AQI 60 — 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 60 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 60
- UV peak
- 1.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 60
PM × Wind × Precip
PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.87 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:33 PM
- Moonset
- 10:49 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Fairfield at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 40020
16-Day Forecast — Fairfield
- Sat87°69°6%
- Sun86°73°37%
- Mon83°69°21%
- Tue79°65°15%
- Wed86°64°8%
- Thu88°66°30%
- Fri90°72°49%
- Sat81°69°49%
- Sun78°60°27%
- Mon78°56°17%
- Tue80°57°10%
- Wed85°58°16%
- Thu85°64°29%
- Fri87°67°31%
- Sat74°68°39%
- Sun76°66°39%
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 — Fairfield
SPC includes Fairfield 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 Fairfield
- 40013
- 40020