Buchanan, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Buchanan, a city in Berrien County, Michigan.
Today
82°F
Mostly Sunny
Mostly sunny, with a high near 82. South wind around 5 mph.
7-day forecast for Buchanan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 5 mph S | 0% |
| Tonight | 61°F | Partly Cloudy | 5 mph S | 0% |
| Wednesday | 82°F | Chance Rain Showers | 5 mph SW | 27% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph SW | 84% |
| Thursday | 78°F | Showers And Thunderstorms | 0 to 5 mph SW | 84% |
| Thursday Night | 60°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 64% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SW | 9% |
| Friday Night | 61°F | Mostly Clear | 0 to 5 mph W | 9% |
| Saturday | 83°F | Mostly Sunny | 0 to 5 mph SW | 11% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 mph SW | 25% |
| Sunday | 85°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 25% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 15 mph SW | 41% |
| Monday | 84°F | Chance Rain Showers | 5 to 10 mph SW | 41% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 48% |
Forecast source: National Weather Service (api.weather.gov) for Buchanan (41.828, -86.366). Updated through the day.
Growing snapshot for Buchanan
Last spring frost
Apr 27
First fall frost
Oct 25
Growing season
180 days
Hardiness zone
6a
More local growing data for Buchanan: nearby ZIP 49107 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Baroda
Benton Harbor
Benton Heights
Berrien Springs
Bridgman
Coloma
Eau Claire
Fair Plain
Galien
Grand Beach
Lake Michigan Beach
Michiana
Millburg
New Buffalo
New Troy
Niles
Paw Paw Lake
Shoreham
Shorewood-Tower Hills-Harbert
St. Joseph
Stevensville
Three Oaks
Watervliet
Climate data from the nearest NOAA station, Niles, Mi (7.8 mi from Buchanan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.