Swartz Creek, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Swartz Creek, a city in Genesee County, Michigan.
Today
65°F
Rain Showers
Rain showers before 2pm, then showers and thunderstorms likely. Cloudy. High near 65, with temperatures falling to around 63 in the afternoon. East southeast wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Swartz Creek
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Rain Showers | 5 to 8 mph ESE | 80% |
| Tonight | 57°F | Patchy Fog | 8 mph E | 83% |
| Sunday | 69°F | Chance Rain Showers | 7 to 13 mph NE | 50% |
| Sunday Night | 49°F | Mostly Cloudy | 7 to 12 mph NE | 1% |
| Monday | 62°F | Mostly Cloudy | 9 to 13 mph NE | 1% |
| Monday Night | 46°F | Mostly Cloudy | 7 to 13 mph NE | 3% |
| Tuesday | 62°F | Partly Sunny | 9 to 14 mph NE | 4% |
| Tuesday Night | 48°F | Mostly Cloudy then Chance Rain Showers | 13 mph ENE | 36% |
| Wednesday | 62°F | Chance Rain Showers | 13 mph ENE | 44% |
| Wednesday Night | 49°F | Chance Rain Showers | 6 to 10 mph ENE | 44% |
| Thursday | 65°F | Slight Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 15% |
| Thursday Night | 48°F | Mostly Cloudy | 3 to 8 mph NE | 13% |
| Friday | 69°F | Mostly Sunny | 3 to 9 mph NNE | 7% |
| Friday Night | 48°F | Partly Cloudy | 3 to 8 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Swartz Creek (42.964, -83.816). Updated through the day.
Growing snapshot for Swartz Creek
Last spring frost
May 6
First fall frost
Oct 10
Growing season
155 days
Hardiness zone
6a
More local growing data for Swartz Creek: nearby ZIP 48473 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
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Beecher
Burton
Clio
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Gaines
Goodrich
Grand Blanc
Linden
Montrose
Mount Morris
Otisville
Climate data from the nearest NOAA station, Flint Bishop Intl Ap, Mi (4.1 mi from Swartz Creek). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.