Chatham, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chatham, a village in Alger County, Michigan.
Overnight
40°F
Partly Cloudy
Partly cloudy, with a low around 40. Southeast wind around 5 mph.
7-day forecast for Chatham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Partly Cloudy | 5 mph SE | 1% |
| Saturday | 66°F | Partly Sunny | 5 to 10 mph SE | 9% |
| Saturday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NE | 17% |
| Sunday | 62°F | Partly Sunny | 5 to 15 mph N | 11% |
| Sunday Night | 40°F | Mostly Cloudy | 5 to 15 mph NE | 0% |
| Monday | 60°F | Partly Sunny | 5 to 10 mph NE | 0% |
| Monday Night | 37°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Tuesday | 64°F | Sunny | 0 to 10 mph E | 0% |
| Tuesday Night | 39°F | Mostly Clear | 5 mph E | 1% |
| Wednesday | 67°F | Sunny | 5 to 10 mph E | 1% |
| Wednesday Night | 41°F | Mostly Clear | 0 to 5 mph E | 0% |
| Thursday | 68°F | Sunny | 0 to 5 mph E | 1% |
| Thursday Night | 42°F | Partly Cloudy | 0 to 5 mph SE | 3% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Chatham (46.344, -86.931). Updated through the day.
Growing snapshot for Chatham
Last spring frost
May 30
First fall frost
Sep 27
Growing season
119 days
Hardiness zone
5a
More local growing data for Chatham: nearby ZIP 49825 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chatham Exp Farm 2, Mi (2.6 mi from Chatham). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.