Plymouth, MN Weather & Growing Conditions
This Afternoon
58°F
Light Rain
Rain and patchy fog. Cloudy. High near 58, with temperatures falling to around 55 in the afternoon. North wind around 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 |
|---|---|---|---|---|
| This Afternoon | 58°F | Light Rain | 10 mph N | 89% |
| Tonight | 50°F | Rain | 10 mph N | 98% |
| Wednesday | 54°F | Rain | 10 mph N | 96% |
| Wednesday Night | 44°F | Light Rain | 10 to 15 mph NNW | 92% |
| Thursday | 48°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 27% |
| Thursday Night | 35°F | Mostly Cloudy | 5 to 10 mph NNE | 1% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 37°F | Partly Cloudy | 5 mph W | 9% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 38°F | Partly Cloudy | 5 mph SW | 0% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph WNW | 1% |
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 (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.