Dayton, Iowa Weather
Warm wind sweeps the tallgrass. Day 16 of summer. Read this microseason across nine climate regions →
Dayton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast14%—85°67°—
- MondayJul 6Mostly Clear——87°68°+2°
- TuesdayJul 7Overcast——88°69°+1°
- WednesdayJul 8Showers54%—85°66°-3°
- ThursdayJul 9Thunderstorm54%—82°67°-3°
- FridayJul 10Overcast19%—82°66°0°
- SaturdayJul 11Overcast19%—83°66°+1°
AQI 47 (Good), driven by PM2.5. AQI up 8 over the last 6 hours (gradual rise). PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.82 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant 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 31 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7.
- Present
- AQI 31
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 8.5 µg/m³ (AQI 47) with a 0.82 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:57 PM
- Moonset
- 12:38 PM
- In sign
- ♓︎ Pisces
Warm wind sweeps the tallgrass
Dayton 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 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 50530
16-Day Forecast — Dayton
- Sun85°67°14%
- Mon87°68°1%
- Tue88°69°1%
- Wed85°66°54%
- Thu82°67°54%
- Fri82°66°19%
- Sat83°66°19%
- Sun88°67°6%
- Mon94°71°4%
- Tue81°66°4%
- Wed80°62°8%
- Thu74°63°16%
- Fri70°66°16%
- Sat80°61°21%
- Sun83°63°24%
- Mon78°65°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Dayton
SPC includes Dayton in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Dayton
- 50530