Porter, MN Weather & Growing Conditions
Overnight
41°F
Light Rain Likely
Rain likely and patchy fog. Cloudy, with a low around 41. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Light Rain Likely | 15 to 20 mph NW | 74% |
| Wednesday | 44°F | Drizzle then Light Rain | 20 mph NW | 93% |
| Wednesday Night | 35°F | Drizzle then Mostly Cloudy | 15 to 20 mph NW | 84% |
| Thursday | 42°F | Mostly Cloudy | 10 to 15 mph NNW | 0% |
| Thursday Night | 29°F | Mostly Cloudy | 0 to 10 mph NNW | 0% |
| Friday | 43°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Friday Night | 29°F | Partly Cloudy | 5 mph S | 0% |
| Saturday | 53°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Saturday Night | 36°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph WSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Monday | 61°F | Mostly Sunny | 10 mph W | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph WNW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Porter, MN
Last spring frost
May 2
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
5a
Explore more for Porter, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Canby, Mn (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.