Union, Kentucky Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Drizzle30%0.03″90°70°—
- MondayJul 6Overcast37%—89°70°-1°
- TuesdayJul 7Light Drizzle46%—80°66°-9°
- WednesdayJul 8Overcast19%—87°62°+7°
- ThursdayJul 9Thunderstorm23%—86°63°-1°
- FridayJul 10Heavy Drizzle64%—85°72°-1°
- SaturdayJul 11Thunderstorm30%0.02″82°71°-3°
AQI 32 (Good), driven by PM2.5. AQI down 12 over the last 6 hours (gradual decline). PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.94 fine-to-coarse ratio and 3 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 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 1.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 32
- UV peak
- 1.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.94 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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
- 11:55 PM
- Moonset
- 11:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Union at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 41091
16-Day Forecast — Union
- Sun90°70°30%
- Mon89°70°37%
- Tue80°66°46%
- Wed87°62°19%
- Thu86°63°23%
- Fri85°72°64%
- Sat82°71°30%
- Sun84°64°18%
- Mon89°65°10%
- Tue94°70°9%
- Wed83°65°10%
- Thu84°60°32%
- Fri90°60°39%
- Sat93°65°40%
- Sun86°73°48%
- Mon88°72°35%
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 — Union
SPC includes Union 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 Union
- 41091