Bay City, WI Weather & Growing Conditions
Today
76°F
Showers And Thunderstorms Likely then Patchy Smoke
Showers and thunderstorms likely before 10am, then patchy smoke. Mostly cloudy, with a high near 76. West northwest wind around 10 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Showers And Thunderstorms Likely then Patchy Smoke | 10 mph WNW | 56% |
| Tonight | 55°F | Partly Cloudy | 0 to 10 mph NW | 14% |
| Wednesday | 76°F | Sunny | 0 to 5 mph NW | 1% |
| Wednesday Night | 56°F | Mostly Clear | 5 mph WSW | 0% |
| Thursday | 82°F | Sunny | 0 to 10 mph SSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SSW | 2% |
| Friday | 85°F | Sunny | 5 to 10 mph SSW | 12% |
| Friday Night | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 27% |
| Saturday | 85°F | Slight Chance Rain Showers then Sunny | 5 to 10 mph SSW | 15% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 5 mph NW | 43% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 43% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 21% |
| Monday | 83°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 24% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bay City, WI
Last spring frost
May 13
First fall frost
Sep 29
Growing season
139 days
Hardiness zone
4b
Explore more for Bay City, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Ellsworth 1E, Wi (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.