Union, Kentucky Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Partly Cloudy——73°55°—
- TuesdayJun 16Rain45%0.30″81°55°+8°
- WednesdayJun 17Heavy Drizzle45%—80°56°-1°
- ThursdayJun 18Light Showers78%0.20″78°61°-2°
- FridayJun 19Overcast29%—73°54°-5°
- SaturdayJun 20Overcast——76°51°+3°
- SundayJun 21Drizzle35%0.05″72°60°-4°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 5.2 µg/m³ (AQI 29) with a 0.96 fine-to-coarse ratio and 4 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.
What's driving it
PM × Wind × Precip
PM2.5 at 5.2 µg/m³ (AQI 29) with a 0.96 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:15 AM
- Moonset
- 9:19 PM
- In sign
- ♊︎ Gemini
Sun climbs to its northern throne
Union at a glance
- Today vs. normal: 21°F below the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Union
- Mon73°54°1%
- Tue81°55°45%
- Wed80°56°45%
- Thu78°61°78%
- Fri73°54°29%
- Sat76°51°4%
- Sun72°60°35%
- Mon74°58°42%
- Tue76°54°40%
- Wed83°57°16%
- Thu85°64°10%
- Fri87°68°35%
- Sat87°67°45%
- Sun91°71°35%
- Mon93°72°52%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 has placed Union in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3SLGTSlight Risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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