Clayton, Iowa Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Clayton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Rain57%0.12″86°56°—
- FridayJun 5Rain79%0.71″80°67°-6°
- SaturdayJun 6Light Drizzle37%0.01″83°66°+3°
- SundayJun 7Showers32%0.05″77°67°-6°
- MondayJun 8Showers65%0.19″75°65°-2°
- TuesdayJun 9Light Showers41%—75°68°0°
- WednesdayJun 10Thunderstorm16%—85°68°+10°
Ozone at AQI 60 now. AQI up 5 over the last 6 hours (gradual rise). With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 62 by mid-afternoon.
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 60 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 62 by mid-afternoon.
- Present
- AQI 60
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 62
PM × Wind × Precip
PM2.5 at 7.6 µg/m³, PM10 at 9.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.83
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 4:44 AM
- Moonset
- 1:58 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Clayton at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: May 3 (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 — Clayton
SPC has placed Clayton in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.