Ionia, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Ionia weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle63%0.03″86°68°—
- SundayJul 5Overcast22%—82°68°-4°
- MondayJul 6Overcast——79°58°-3°
- TuesdayJul 7Partly Cloudy——83°57°+4°
- WednesdayJul 8Overcast10%—82°61°-1°
- ThursdayJul 9Light Drizzle25%—77°66°-5°
- FridayJul 10Overcast22%—81°62°+4°
AQI 42 (Good), driven by Ozone. AQI down 20 over the last 6 hours — air quality is improving sharply. Ozone at AQI 42 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 13 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 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 13 around 1 PM.
- Present
- AQI 42
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 7.3 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- Wind
- light
- Recent rain
- 1h 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
- 11:39 PM
- Moonset
- 10:42 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Ionia at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 48846
15-Day Forecast — Ionia
- Sat85°68°63%
- Sun82°68°22%
- Mon79°58°5%
- Tue83°57°1%
- Wed82°61°10%
- Thu77°66°25%
- Fri81°62°22%
- Sat78°62°14%
- Sun76°62°11%
- Mon84°61°7%
- Tue71°62°9%
- Wed82°57°16%
- Thu82°59°29%
- Fri83°68°29%
- Sat76°58°12%
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 — Ionia
SPC includes Ionia 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 Ionia
- 48846