Portland, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Portland weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle71%0.02″85°68°—
- SundayJul 5Overcast24%—81°67°-4°
- MondayJul 6Overcast——78°61°-3°
- TuesdayJul 7Mostly Clear——82°57°+4°
- WednesdayJul 8Overcast10%—82°60°0°
- ThursdayJul 9Light Drizzle25%—77°66°-5°
- FridayJul 10Overcast21%—81°62°+4°
AQI 44 (Good), driven by PM2.5. AQI down 17 over the last 6 hours — air quality is improving sharply. PM2.5 at 8.2 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
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 38. Overcast through the UV peak window (cloud cover ~61%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 8.2 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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
- 11:38 PM
- Moonset
- 10:41 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Portland at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 48875
15-Day Forecast — Portland
- Sat83°68°71%
- Sun81°67°24%
- Mon78°61°6%
- Tue82°57°1%
- Wed82°60°10%
- Thu77°66°25%
- Fri81°62°21%
- Sat80°61°14%
- Sun76°61°12%
- Mon82°60°9%
- Tue71°62°8%
- Wed80°57°16%
- Thu81°58°29%
- Fri82°67°29%
- Sat75°59°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 — Portland
SPC includes Portland 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 Portland
- 48875