St. Ignace, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Ignace weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——74°63°—
- SundayJul 5Overcast——74°60°0°
- MondayJul 6Overcast——77°58°+3°
- TuesdayJul 7Light Drizzle——75°59°-2°
- WednesdayJul 8Heavy Showers35%1.6″74°60°-1°
- ThursdayJul 9Foggy46%—76°55°+2°
- FridayJul 10Overcast23%—72°57°-4°
AQI 36 (Good), driven by Ozone. AQI down 6 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
- 11:43 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Ignace 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.
15-Day Forecast — St. Ignace
- Sat75°63°3%
- Sun74°60°1%
- Mon77°58°0%
- Tue75°59°7%
- Wed74°60°35%
- Thu76°55°46%
- Fri72°57°23%
- Sat72°61°14%
- Sun69°59°14%
- Mon71°58°18%
- Tue64°58°19%
- Wed74°55°17%
- Thu74°66°26%
- Fri72°59°17%
- Sat71°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.
ZIP codes in St. Ignace
- 49781