Ithaca, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ithaca, a city in Gratiot County, Michigan.
Today
70°F
Rain Showers Likely
Rain showers likely. Mostly cloudy. High near 70, with temperatures falling to around 67 in the afternoon. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ithaca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Rain Showers Likely | 13 to 16 mph S | 74% |
| Tonight | 48°F | Chance Rain Showers | 13 mph SSW | 39% |
| Thursday | 56°F | Chance Rain Showers | 12 to 15 mph SW | 49% |
| Thursday Night | 39°F | Rain Showers Likely | 7 to 12 mph W | 63% |
| Friday | 49°F | Rain Showers Likely | 13 mph NNW | 63% |
| Friday Night | 32°F | Rain Showers Likely | 10 mph NNW | 63% |
| Saturday | 51°F | Mostly Sunny | 9 mph NW | 4% |
| Saturday Night | 30°F | Partly Cloudy | 6 mph W | 2% |
| Sunday | 55°F | Mostly Sunny | 7 to 14 mph W | 8% |
| Sunday Night | 32°F | Mostly Clear | 5 to 10 mph W | 8% |
| Monday | 59°F | Mostly Sunny | 6 to 12 mph WSW | 1% |
| Monday Night | 37°F | Partly Cloudy | 10 mph WSW | 5% |
| Tuesday | 60°F | Mostly Sunny then Slight Chance Rain Showers | 8 to 13 mph W | 15% |
| Tuesday Night | 33°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 8 mph WNW | 15% |
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 Nov 4, 2026.