Williamston, MI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Williamston, a city in Ingham County, Michigan.

This Afternoon

72°F

Mostly Cloudy

Mostly cloudy. High near 72, with temperatures falling to around 70 in the afternoon. Northeast wind around 8 mph.

7-day forecast for Williamston

When	Temp	Forecast	Wind	Precip
This Afternoon	72°F	Mostly Cloudy	8 mph NE	2%
Tonight	53°F	Mostly Cloudy then Chance Rain Showers	6 to 9 mph ENE	26%
Saturday	65°F	Showers And Thunderstorms	5 to 9 mph ESE	76%
Saturday Night	57°F	Showers And Thunderstorms	3 to 9 mph E	81%
Sunday	66°F	Chance Rain Showers	6 to 12 mph NNE	53%
Sunday Night	50°F	Chance Rain Showers then Mostly Cloudy	8 to 12 mph NE	41%
Monday	63°F	Mostly Cloudy	9 to 13 mph NE	12%
Monday Night	47°F	Mostly Cloudy	8 to 13 mph NE	8%
Tuesday	62°F	Partly Sunny then Slight Chance Rain Showers	10 to 14 mph NE	17%
Tuesday Night	49°F	Chance Rain Showers	9 to 13 mph NE	41%
Wednesday	62°F	Chance Rain Showers	12 mph NE	41%
Wednesday Night	50°F	Chance Rain Showers then Mostly Cloudy	5 to 9 mph NE	32%
Thursday	65°F	Partly Sunny	5 to 9 mph NNE	8%
Thursday Night	50°F	Mostly Cloudy	2 to 7 mph NNE	8%

Forecast source: National Weather Service (api.weather.gov) for Williamston (42.683, -84.284). Updated through the day.

Growing snapshot for Williamston

Last spring frost

Apr 28

First fall frost

Oct 17

Growing season

173 days

Hardiness zone

More local growing data for Williamston: nearby ZIP 48895 weather · frost dates · planting calendar · Michigan frost dates

Nearby towns & communities

Dansville East Lansing Edgemont Park Haslett Holt Lansing Leslie Mason Okemos Stockbridge Webberville

All Michigan locations ›

Climate data from the nearest NOAA station, East Lansing 4 S, Mi (10.5 mi from Williamston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.