Leon, Iowa Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Leon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain68%2.8″84°69°—
- SundayJul 5Rain10%0.11″85°68°+1°
- MondayJul 6Light Drizzle12%—82°67°-3°
- TuesdayJul 7Light Drizzle——83°65°+1°
- WednesdayJul 8Thunderstorm12%—87°65°+4°
- ThursdayJul 9Light Showers43%—83°70°-4°
- FridayJul 10Drizzle27%—82°67°-1°
AQI 33 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.76 fine-to-coarse ratio and 6 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 40 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 40
- UV peak
- 2.8 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 40
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.76 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.76
- 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
- 11:11 PM
- Moonset
- 10:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Leon at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50144
16-Day Forecast — Leon
- Sat85°69°68%
- Sun85°68°10%
- Mon82°67°12%
- Tue83°65°1%
- Wed87°65°12%
- Thu83°70°43%
- Fri82°67°27%
- Sat76°60°9%
- Sun77°59°6%
- Mon79°58°5%
- Tue79°60°5%
- Wed82°56°16%
- Thu84°63°13%
- Fri83°70°19%
- Sat79°64°19%
- Sun75°59°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Leon
SPC includes Leon in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Leon
- 50144