Garrison, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Garrison weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain70%0.33″83°67°—
- SundayJul 5Overcast——82°67°-1°
- MondayJul 6Overcast——81°66°-1°
- TuesdayJul 7Overcast——82°63°+1°
- WednesdayJul 8T-storm w/ Hail41%—83°65°+1°
- ThursdayJul 9Light Showers48%—79°66°-4°
- FridayJul 10Light Drizzle12%—80°65°+1°
AQI 32 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 44 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 44 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 2.3 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 6.8 µg/m³, PM10 at 9.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.75
- 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
- 11:06 PM
- Moonset
- 10:12 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Garrison at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 52229
16-Day Forecast — Garrison
- Sat83°67°70%
- Sun82°67°8%
- Mon81°66°1%
- Tue82°63°6%
- Wed83°65°41%
- Thu79°66°48%
- Fri80°65°12%
- Sat75°60°8%
- Sun76°57°9%
- Mon76°57°6%
- Tue79°60°4%
- Wed77°58°26%
- Thu82°64°19%
- Fri81°66°20%
- Sat74°62°20%
- Sun74°58°24%
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 — Garrison
SPC includes Garrison 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 Garrison
- 52229