Watertown, MN Weather & Growing Conditions
This Afternoon
52°F
Light Rain
Rain. Cloudy, with a high near 52. Northwest wind around 10 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Light Rain | 10 mph NW | 87% |
| Tonight | 41°F | Light Rain | 10 to 15 mph NNW | 91% |
| Thursday | 45°F | Cloudy | 10 to 15 mph N | 3% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 45°F | Patchy Fog then Sunny | 0 mph | 0% |
| Friday Night | 28°F | Areas Of Fog | 0 mph | 0% |
| Saturday | 50°F | Patchy Fog then Mostly Sunny | 0 to 5 mph SSW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph WSW | 1% |
| Sunday | 55°F | Sunny | 5 mph W | 1% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 61°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 5 mph WNW | 2% |
| Tuesday Night | 36°F | Partly Cloudy | 0 mph | 0% |
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 Nov 5, 2026.