Swartz Creek, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Swartz Creek, a city in Genesee County, Michigan.
Overnight
62°F
Mostly Cloudy
Mostly cloudy, with a low around 62. South wind around 13 mph, with gusts as high as 23 mph.
7-day forecast for Swartz Creek
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Mostly Cloudy | 13 mph S | 9% |
| Wednesday | 69°F | Light Rain | 13 to 16 mph S | 94% |
| Wednesday Night | 49°F | Light Rain then Mostly Cloudy | 8 to 13 mph SSW | 77% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Light Rain | 10 to 15 mph SW | 16% |
| Thursday Night | 41°F | Light Rain Likely | 3 to 8 mph W | 59% |
| Friday | 50°F | Light Rain Likely | 5 to 10 mph NW | 59% |
| Friday Night | 33°F | Light Rain Likely | 7 to 10 mph NNW | 59% |
| Saturday | 49°F | Partly Sunny | 7 to 10 mph NW | 13% |
| Saturday Night | 30°F | Partly Cloudy | 6 mph W | 1% |
| Sunday | 55°F | Mostly Sunny | 7 to 13 mph W | 6% |
| Sunday Night | 31°F | Partly Cloudy | 5 to 10 mph W | 6% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph WSW | 2% |
| Monday Night | 37°F | Partly Cloudy | 9 mph SW | 5% |
| Tuesday | 60°F | Mostly Sunny then Slight Chance Light Rain | 8 to 12 mph W | 15% |
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
Argentine
Beecher
Burton
Clio
Davison
Flint
Flushing
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 Nov 4, 2026.