Posen, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Posen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——77°65°—
- SundayJul 5Overcast——76°59°-1°
- MondayJul 6Overcast——78°55°+2°
- TuesdayJul 7Overcast——84°57°+6°
- WednesdayJul 8Thunderstorm46%1.4″80°62°-4°
- ThursdayJul 9Overcast47%—75°57°-5°
- FridayJul 10Partly Cloudy21%—75°52°0°
AQI 35 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 33 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 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 33 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 around 1 PM.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 5.8 µg/m³ (AQI 32) with a 0.92 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 11:38 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Posen at a glance
- Today vs. normal: 66°F — typical for the season
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 49776
15-Day Forecast — Posen
- Sat77°65°4%
- Sun76°59°1%
- Mon78°55°0%
- Tue84°57°2%
- Wed80°62°46%
- Thu75°57°47%
- Fri75°52°21%
- Sat75°57°15%
- Sun68°57°13%
- Mon77°54°19%
- Tue66°59°15%
- Wed78°57°23%
- Thu82°62°23%
- Fri79°63°19%
- Sat69°55°19%
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 — Posen
SPC includes Posen 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 Posen
- 49776