Clayton, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Clayton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle34%0.02″85°69°—
- SundayJul 5Overcast22%—83°69°-2°
- MondayJul 6Clear——81°64°-2°
- TuesdayJul 7Light Drizzle——83°64°+2°
- WednesdayJul 8Thunderstorm40%0.10″82°64°-1°
- ThursdayJul 9Showers46%—76°67°-6°
- FridayJul 10Partly Cloudy11%—80°62°+4°
AQI 34 (Good), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.74 fine-to-coarse ratio and 3 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 36. Overcast through the UV peak window (cloud cover ~93%) — afternoon ozone should stay flat.
- Present
- AQI 36
- UV peak
- 5.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.74 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:03 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Clayton at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Clayton
- Sat85°69°34%
- Sun83°69°22%
- Mon81°64°2%
- Tue83°64°2%
- Wed82°64°40%
- Thu76°67°46%
- Fri80°62°11%
- Sat84°64°9%
- Sun70°59°11%
- Mon76°54°9%
- Tue80°61°7%
- Wed79°62°19%
- Thu79°67°16%
- Fri83°67°26%
- Sat88°69°32%
- Sun86°71°35%
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 — Clayton
SPC includes Clayton 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 Clayton
- 52049