Copper Harbor, Michigan Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
Copper Harbor weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——76°57°—
- ThursdayJun 4Overcast22%—78°59°+2°
- FridayJun 5Foggy15%—72°53°-6°
- SaturdayJun 6Foggy——62°48°-10°
- SundayJun 7Foggy——61°45°-1°
- MondayJun 8Overcast——65°50°+4°
- TuesdayJun 9Light Drizzle17%0.04″59°55°-6°
Ozone at AQI 42 — peak already passed at 1 PM under clear skies. AQI up 7 over the last 6 hours (gradual rise). 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 42 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 42
- UV peak
- 3.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 42
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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:16 AM
- Moonset
- 12:17 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Copper Harbor at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 31 (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 3, 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 — Copper Harbor
SPC has placed Copper Harbor in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.