Sylvania, MI Weather & Growing Conditions
Overnight
58°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. East northeast wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Slight Chance Rain Showers | 6 mph ENE | 19% |
| Saturday | 71°F | Showers And Thunderstorms | 3 to 8 mph E | 75% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 70% |
| Sunday | 71°F | Patchy Fog | 6 to 12 mph NNW | 75% |
| Sunday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 13 mph NE | 29% |
| Monday | 63°F | Slight Chance Rain Showers | 13 to 16 mph NE | 15% |
| Monday Night | 49°F | Slight Chance Rain Showers | 15 mph NE | 16% |
| Tuesday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 18 mph NE | 18% |
| Tuesday Night | 51°F | Chance Rain Showers | 14 to 18 mph ENE | 50% |
| Wednesday | 62°F | Rain Showers Likely | 16 mph ENE | 59% |
| Wednesday Night | 51°F | Showers And Thunderstorms Likely | 7 to 15 mph ENE | 59% |
| Thursday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 10 mph NE | 19% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 9 mph NE | 11% |
| Friday | 68°F | Mostly Sunny | 6 to 10 mph NE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sylvania, MI
Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
168 days
Hardiness zone
6a
Explore more for Sylvania, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Blissfield 1Nne, Mi (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.