Walnut Grove, MN Weather & Growing Conditions
Today
70°F
Patchy Smoke
Patchy smoke. Mostly sunny, with a high near 70. Northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Patchy Smoke | 5 to 10 mph NW | 8% |
| Tonight | 53°F | Patchy Smoke then Partly Cloudy | 0 to 5 mph W | 6% |
| Wednesday | 75°F | Sunny | 5 mph SW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Thursday | 81°F | Sunny | 10 to 15 mph SSW | 1% |
| Thursday Night | 63°F | Mostly Clear | 10 to 15 mph SSW | 3% |
| Friday | 84°F | Sunny | 10 to 15 mph SW | 13% |
| Friday Night | 63°F | Mostly Clear | 5 to 10 mph SSW | 13% |
| Saturday | 84°F | Sunny | 5 to 15 mph SSW | 12% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 31% |
| Sunday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ESE | 30% |
| Sunday Night | 64°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph E | 30% |
| Monday | 81°F | Chance Showers And Thunderstorms | 10 mph ENE | 30% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 10 mph NE | 23% |
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 Aug 4, 2026.