Corydon, Kentucky Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Corydon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle19%—87°69°—
- MondayJul 6Overcast18%—84°70°-3°
- TuesdayJul 7Thunderstorm25%—84°71°0°
- WednesdayJul 8T-storm w/ Hail21%—86°70°+2°
- ThursdayJul 9T-storm w/ Hail27%—90°71°+4°
- FridayJul 10Thunderstorm48%0.12″87°70°-3°
- SaturdayJul 11Drizzle46%0.01″85°72°-2°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.91 fine-to-coarse ratio and 5 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
Ozone × UV × Sky
Ozone at AQI 41 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 41
- UV peak
- 3.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 41
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.91 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- 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
- 11:07 PM
- Moonset
- 11:04 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Corydon at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 42406
16-Day Forecast — Corydon
- Sun87°69°19%
- Mon84°70°18%
- Tue84°71°25%
- Wed86°70°21%
- Thu90°71°27%
- Fri87°70°48%
- Sat85°72°46%
- Sun84°72°16%
- Mon84°65°8%
- Tue74°57°6%
- Wed78°59°10%
- Thu79°63°16%
- Fri85°67°29%
- Sat85°67°36%
- Sun86°67°29%
- Mon87°67°24%
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 — Corydon
SPC includes Corydon 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 Corydon
- 42406