Sheffield, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Sheffield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers41%0.17″81°68°—
- SundayJul 5Foggy——85°62°+4°
- MondayJul 6Mostly Clear——87°66°+2°
- TuesdayJul 7Overcast——84°66°-3°
- WednesdayJul 8Thunderstorm56%—80°65°-4°
- ThursdayJul 9Overcast56%—75°59°-5°
- FridayJul 10Overcast——80°61°+5°
AQI 40 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 4.9 µg/m³ (AQI 27) with a 0.82 fine-to-coarse ratio and 4 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
PM × Wind × Precip
PM2.5 at 4.9 µg/m³ (AQI 27) with a 0.82 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- 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
- 11:33 PM
- Moonset
- 11:24 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Sheffield at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50475
16-Day Forecast — Sheffield
- Sat81°68°41%
- Sun85°62°8%
- Mon87°66°2%
- Tue84°66°7%
- Wed80°65°56%
- Thu75°59°56%
- Fri80°61°8%
- Sat76°61°7%
- Sun75°56°8%
- Mon82°61°10%
- Tue86°66°8%
- Wed81°63°15%
- Thu87°65°16%
- Fri89°72°23%
- Sat86°67°26%
- Sun80°61°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Sheffield
SPC includes Sheffield 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 Sheffield
- 50475