Watertown, MN Weather & Growing Conditions
This Afternoon
63°F
Cloudy
Cloudy, with a high near 63. North northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Cloudy | 10 mph NNE | 13% |
| Tonight | 51°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Sunday | 67°F | Partly Sunny | 10 mph NE | 1% |
| Sunday Night | 49°F | Cloudy | 5 to 10 mph ENE | 0% |
| Monday | 62°F | Mostly Cloudy | 5 mph ENE | 5% |
| Monday Night | 45°F | Mostly Cloudy | 0 to 5 mph ENE | 3% |
| Tuesday | 63°F | Mostly Sunny | 5 mph E | 1% |
| Tuesday Night | 43°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Wednesday | 66°F | Sunny | 5 mph SE | 0% |
| Wednesday Night | 50°F | Partly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 16% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SE | 26% |
| Thursday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph SE | 17% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph SE | 10% |
| Friday Night | 56°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 Watertown, MN
Last spring frost
Apr 30
First fall frost
Oct 8
Growing season
159 days
Hardiness zone
4b
Explore more for Watertown, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Delano, Mn (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.