McHenry, Kentucky Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
McHenry weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Partly Cloudy——80°55°—
- ThursdayJun 4Overcast——81°61°+1°
- FridayJun 5Overcast——82°63°+1°
- SaturdayJun 6Overcast——84°64°+2°
- SundayJun 7Light Drizzle19%—87°68°+3°
- MondayJun 8Light Drizzle43%0.06″76°67°-11°
- TuesdayJun 9Light Drizzle25%—74°67°-2°
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. AQI up 18 in the last 6 hours — air quality is degrading. Levels should ease through evening.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 500
- UV peak
- 1.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 500
PM × Wind × Precip
PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.87 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:30 AM
- Moonset
- 12:55 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
McHenry at a glance
- Today vs. normal: 78°F — typical for the season
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.