Bay City, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Bay City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle32%0.09″83°68°—
- SundayJul 5Light Rain—0.07″76°65°-7°
- MondayJul 6Overcast——72°60°-4°
- TuesdayJul 7Partly Cloudy——82°57°+10°
- WednesdayJul 8Overcast13%—84°61°+2°
- ThursdayJul 9Light Drizzle39%—75°64°-9°
- FridayJul 10Overcast24%—76°60°+1°
AQI 39 (Good), driven by Ozone. AQI down 17 over the last 6 hours — air quality is improving sharply. Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~98%) — 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 ~98%) — 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
- 11:36 PM
- Moonset
- 10:36 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Bay City at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: May 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 48706, 48708
15-Day Forecast — Bay City
- Sat85°68°32%
- Sun76°65°9%
- Mon72°60°5%
- Tue82°57°1%
- Wed84°61°13%
- Thu75°64°39%
- Fri76°60°24%
- Sat81°61°16%
- Sun77°61°12%
- Mon83°59°14%
- Tue74°62°14%
- Wed83°57°15%
- Thu81°60°36%
- Fri84°67°35%
- Sat68°57°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Bay City
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 — Bay City
SPC includes Bay City 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 Bay City
- 48706
- 48708