Port Sanilac, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Port Sanilac weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain34%0.24″77°64°—
- SundayJul 5Foggy11%—74°65°-3°
- MondayJul 6Heavy Drizzle—0.04″72°67°-2°
- TuesdayJul 7Clear——75°65°+3°
- WednesdayJul 8Overcast——82°63°+7°
- ThursdayJul 9Light Drizzle30%0.01″73°66°-9°
- FridayJul 10Overcast26%—71°64°-2°
AQI 43 (Good), driven by Ozone. AQI down 26 over the last 6 hours — air quality is improving sharply. Ozone at AQI 36. 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 36. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 36
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 5.1 µg/m³, PM10 to 6.1 µg/m³.
- PM2.5/PM10
- 0.84
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:30 PM
- Moonset
- 10:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Port Sanilac at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: May 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 48469
15-Day Forecast — Port Sanilac
- Sat82°64°34%
- Sun74°65°11%
- Mon72°67°6%
- Tue75°65°6%
- Wed82°63°9%
- Thu73°66°30%
- Fri71°64°26%
- Sat78°63°16%
- Sun75°62°15%
- Mon80°59°17%
- Tue71°63°14%
- Wed73°61°19%
- Thu81°63°34%
- Fri79°68°39%
- Sat67°63°14%
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 — Port Sanilac
SPC includes Port Sanilac 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 Port Sanilac
- 48469