St. Martin, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Martin, a city in Stearns County, Minnesota.
Today
61°F
Patchy Fog then Cloudy
Patchy fog before 11am. Cloudy, with a high near 61. Northeast wind 5 to 10 mph.
7-day forecast for St. Martin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 61°F | Patchy Fog then Cloudy | 5 to 10 mph NE | 11% |
| Tonight | 50°F | Mostly Cloudy | 5 mph NNE | 7% |
| Sunday | 64°F | Mostly Cloudy | 5 to 10 mph NE | 3% |
| Sunday Night | 46°F | Mostly Cloudy | 5 to 10 mph ENE | 1% |
| Monday | 63°F | Partly Sunny | 5 to 10 mph ENE | 3% |
| Monday Night | 42°F | Partly Cloudy | 5 mph E | 3% |
| Tuesday | 63°F | Sunny | 5 to 10 mph ESE | 1% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Wednesday | 65°F | Sunny | 0 to 10 mph SE | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph SE | 9% |
| Thursday | 67°F | Mostly Sunny | 0 to 10 mph SSE | 10% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph SSE | 8% |
| Friday | 70°F | Mostly Sunny | 0 to 10 mph SSE | 8% |
| Friday Night | 51°F | Partly Cloudy | 5 mph SSE | 14% |
Forecast source: National Weather Service (api.weather.gov) for St. Martin (45.503, -94.668). Updated through the day.
Growing snapshot for St. Martin
Last spring frost
May 4
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
4b
More local growing data for St. Martin: nearby ZIP 56376 weather · frost dates · planting calendar · Minnesota frost dates
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Climate data from the nearest NOAA station, Melrose, Mn (13.7 mi from St. Martin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.