Pierson, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Pierson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——84°71°—
- SundayJul 5Overcast26%—88°67°+4°
- MondayJul 6Overcast——88°67°0°
- TuesdayJul 7Light Drizzle——90°69°+2°
- WednesdayJul 8Heavy Drizzle45%—87°67°-3°
- ThursdayJul 9Light Drizzle45%—78°62°-9°
- FridayJul 10Light Drizzle11%—85°63°+7°
AQI 48 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 42 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
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 42 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 42
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 5.5 µg/m³ (AQI 31) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:44 PM
- Moonset
- 11:36 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Pierson at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 51048
16-Day Forecast — Pierson
- Sat84°71°9%
- Sun88°65°26%
- Mon88°67°1%
- Tue90°69°4%
- Wed87°67°45%
- Thu78°62°45%
- Fri85°63°11%
- Sat79°65°9%
- Sun83°61°6%
- Mon90°66°4%
- Tue94°69°5%
- Wed97°69°7%
- Thu104°76°13%
- Fri98°76°22%
- Sat100°70°29%
- Sun87°65°6%
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 — Pierson
SPC includes Pierson in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 Pierson
- 51048