Downey, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Downey weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain60%0.07″85°68°—
- SundayJul 5Light Drizzle11%0.02″84°69°-1°
- MondayJul 6Overcast——80°66°-4°
- TuesdayJul 7Overcast——81°62°+1°
- WednesdayJul 8T-storm w/ Hail22%—83°64°+2°
- ThursdayJul 9Light Showers31%—80°69°-3°
- FridayJul 10Light Drizzle18%—81°66°+1°
AQI 33 (Good), driven by PM2.5. AQI up 8 over the last 6 hours (gradual rise). PM2.5 at 9.4 µg/m³, PM10 at 12.9 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 46 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 5.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 9.4 µg/m³, PM10 at 12.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.73
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:02 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Downey at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Downey
- Sat85°68°60%
- Sun84°69°11%
- Mon80°66°2%
- Tue81°62°2%
- Wed83°64°22%
- Thu80°69°31%
- Fri81°66°18%
- Sat72°61°10%
- Sun76°59°9%
- Mon75°58°8%
- Tue78°59°9%
- Wed77°58°23%
- Thu82°63°19%
- Fri78°68°26%
- Sat77°63°26%
- Sun74°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 — Downey
SPC includes Downey 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 Downey
- 52358