Plymouth, MN Weather & Growing Conditions
Today
53°F
Light Rain
Rain. Cloudy, with a high near 53. West wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Light Rain | 5 to 10 mph W | 85% |
| Tonight | 43°F | Light Rain | 5 to 15 mph NNW | 88% |
| Thursday | 46°F | Mostly Cloudy | 10 to 15 mph N | 4% |
| Thursday Night | 32°F | Mostly Cloudy then Patchy Fog | 5 to 10 mph NNE | 0% |
| Friday | 45°F | Patchy Fog then Sunny | 0 to 5 mph N | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 to 5 mph SSW | 0% |
| Saturday | 50°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 37°F | Mostly Clear | 5 mph WSW | 2% |
| Sunday | 53°F | Sunny | 5 mph W | 2% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 58°F | Mostly Sunny | 5 to 10 mph WSW | 1% |
| Monday Night | 40°F | Partly Cloudy | 5 mph WNW | 0% |
| Tuesday | 54°F | Sunny | 5 mph WNW | 1% |
| Tuesday Night | 40°F | Partly Cloudy | 0 to 5 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plymouth, MN
Last spring frost
Apr 29
First fall frost
Oct 12
Growing season
163 days
Hardiness zone
5a
Explore more for Plymouth, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, New Hope, Mn (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.