Walnut Grove, MN Weather & Growing Conditions
This Afternoon
64°F
Slight Chance Drizzle
A slight chance of drizzle before 4pm. Cloudy, with a high near 64. North 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 NNE | 17% |
| Tonight | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 13% |
| Sunday | 67°F | Mostly Cloudy | 10 to 15 mph NE | 3% |
| Sunday Night | 50°F | Cloudy then Chance Rain Showers | 10 mph NE | 25% |
| Monday | 60°F | Slight Chance Rain Showers | 5 to 10 mph ENE | 22% |
| Monday Night | 43°F | Mostly Cloudy | 5 mph ENE | 13% |
| Tuesday | 64°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Tuesday Night | 43°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 67°F | Sunny | 5 to 10 mph SE | 2% |
| Wednesday Night | 50°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph SSE | 26% |
| Thursday | 70°F | Chance Showers And Thunderstorms | 10 to 15 mph SSE | 40% |
| Thursday Night | 54°F | Mostly Cloudy | 5 to 10 mph SSE | 10% |
| Friday | 73°F | Partly Sunny | 5 to 10 mph SE | 10% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Walnut Grove, MN
Last spring frost
May 3
First fall frost
Oct 2
Growing season
152 days
Hardiness zone
5a
Explore more for Walnut Grove, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Lamberton Sw Rsch & Outreach C, Mn (7.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.