Mackinac Island, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Mackinac Island weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——73°62°—
- SundayJul 5Overcast——71°60°-2°
- MondayJul 6Overcast——76°57°+5°
- TuesdayJul 7Light Drizzle——74°58°-2°
- WednesdayJul 8Heavy Showers33%1.6″73°59°-1°
- ThursdayJul 9Overcast45%—75°54°+2°
- FridayJul 10Overcast24%—72°56°-3°
AQI 36 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~100%) — 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 34. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
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
- 11:42 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Mackinac Island at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 49757
15-Day Forecast — Mackinac Island
- Sat72°62°3%
- Sun71°60°1%
- Mon76°57°0%
- Tue74°58°7%
- Wed73°59°33%
- Thu75°54°45%
- Fri72°56°24%
- Sat71°60°14%
- Sun68°58°14%
- Mon70°57°19%
- Tue63°57°18%
- Wed73°54°16%
- Thu73°65°26%
- Fri71°58°17%
- Sat70°54°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.
ZIP codes in Mackinac Island
- 49757