Ithaca, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ithaca, a city in Gratiot County, Michigan.
Tonight
50°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 50, with temperatures rising to around 53 overnight. East northeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Ithaca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Rain Showers Likely | 5 to 9 mph ENE | 57% |
| Saturday | 64°F | Rain Showers | 6 to 9 mph E | 84% |
| Saturday Night | 54°F | Showers And Thunderstorms Likely | 6 to 9 mph ENE | 74% |
| Sunday | 67°F | Chance Rain Showers | 9 to 14 mph NE | 47% |
| Sunday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 13 mph NE | 22% |
| Monday | 63°F | Mostly Cloudy | 13 to 16 mph NE | 6% |
| Monday Night | 45°F | Mostly Cloudy | 10 to 16 mph NE | 6% |
| Tuesday | 62°F | Partly Sunny | 13 to 16 mph NE | 13% |
| Tuesday Night | 47°F | Slight Chance Rain Showers | 10 to 16 mph NE | 22% |
| Wednesday | 63°F | Chance Rain Showers | 13 mph NE | 36% |
| Wednesday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 6 to 12 mph NE | 28% |
| Thursday | 66°F | Partly Sunny | 7 to 10 mph NE | 8% |
| Thursday Night | 48°F | Mostly Cloudy | 3 to 9 mph NNE | 6% |
| Friday | 70°F | Mostly Sunny | 3 to 8 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Ithaca (43.291, -84.596). Updated through the day.
Growing snapshot for Ithaca
Last spring frost
May 1
First fall frost
Oct 13
Growing season
164 days
Hardiness zone
6a
More local growing data for Ithaca: nearby ZIP 48847 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alma, Mi (8.7 mi from Ithaca). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.