Plymouth, MN Weather & Growing Conditions
This Afternoon
64°F
Slight Chance Drizzle
A slight chance of drizzle before 4pm. Cloudy, with a high near 64. Northeast wind around 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Slight Chance Drizzle | 10 mph NE | 18% |
| Tonight | 53°F | Mostly Cloudy | 5 to 10 mph NNE | 6% |
| Sunday | 68°F | Partly Sunny | 10 mph NE | 1% |
| Sunday Night | 50°F | Cloudy | 5 to 10 mph NE | 0% |
| Monday | 63°F | Mostly Cloudy | 5 mph ENE | 3% |
| Monday Night | 46°F | Partly Cloudy | 5 mph ENE | 2% |
| Tuesday | 64°F | Mostly Sunny | 5 mph E | 1% |
| Tuesday Night | 46°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 67°F | Sunny | 5 mph ESE | 0% |
| Wednesday Night | 51°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Thursday | 68°F | Slight Chance Rain Showers | 5 to 10 mph SE | 22% |
| Thursday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph SE | 15% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph SE | 10% |
| Friday Night | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
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 Sep 20, 2026.