Trenton, Michigan Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Trenton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——87°55°—
- FridayJun 5Heavy Drizzle45%0.01″87°65°0°
- SaturdayJun 6Light Showers69%—79°64°-8°
- SundayJun 7Overcast14%—79°63°0°
- MondayJun 8Overcast——77°60°-2°
- TuesdayJun 9Light Drizzle16%—77°66°0°
- WednesdayJun 10Light Drizzle17%—78°68°+1°
Ozone at AQI 45. AQI up 6 over the last 6 hours (gradual rise). Overcast through the UV peak window (cloud cover ~91%) — afternoon ozone should stay flat.
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 45. Overcast through the UV peak window (cloud cover ~91%) — afternoon ozone should stay flat.
- Present
- AQI 45
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:08 AM
- Moonset
- 1:26 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Trenton at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Trenton
SPC has placed Trenton in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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.