Corydon, Iowa Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Corydon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast34%—81°60°—
- FridayJun 5Thunderstorm60%1.5″80°65°-1°
- SaturdayJun 6Light Showers54%—85°70°+5°
- SundayJun 7Showers62%—80°68°-5°
- MondayJun 8Showers60%0.21″81°68°+1°
- TuesdayJun 9Thunderstorm21%—87°68°+6°
- WednesdayJun 10Thunderstorm11%—90°75°+3°
AQI 27 (Good), driven by Ozone. AQI down 20 over the last 6 hours — air quality is improving sharply.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 4:45 AM
- Moonset
- 2:13 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Corydon at a glance
- Today vs. normal: 14°F below the seasonal normal for this latitude
- Last frost: April 21 (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 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 — Corydon
SPC has placed Corydon in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.