St. Donatus, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Donatus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain56%0.20″85°70°—
- SundayJul 5Overcast23%—85°69°0°
- MondayJul 6Overcast——82°64°-3°
- TuesdayJul 7Overcast——82°62°0°
- WednesdayJul 8Overcast29%—82°62°0°
- ThursdayJul 9Showers39%—79°68°-3°
- FridayJul 10Overcast15%—80°63°+1°
AQI 27 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.0 µg/m³, PM10 at 13.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~62%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 3.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 10.0 µg/m³, PM10 at 13.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.72
- Wind
- light
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:00 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Donatus at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Donatus
- Sat85°70°56%
- Sun85°69°23%
- Mon82°64°3%
- Tue82°62°1%
- Wed82°62°29%
- Thu79°68°39%
- Fri80°63°15%
- Sat84°65°12%
- Sun70°59°8%
- Mon76°55°6%
- Tue78°61°7%
- Wed81°64°19%
- Thu81°67°11%
- Fri83°67°23%
- Sat86°70°23%
- Sun86°71°33%
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 — St. Donatus
SPC includes St. Donatus 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 St. Donatus
- 52071