Delavan, MN Weather & Growing Conditions
Today
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then patchy smoke and a chance of showers and thunderstorms between 4pm and 5pm, then patchy smoke and a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 72. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph NW | 27% |
| Tonight | 55°F | Patchy Smoke then Mostly Cloudy | 0 to 5 mph NW | 25% |
| Wednesday | 73°F | Mostly Sunny | 0 to 5 mph WNW | 1% |
| Wednesday Night | 55°F | Mostly Clear | 0 to 5 mph S | 0% |
| Thursday | 79°F | Sunny | 5 to 10 mph S | 1% |
| Thursday Night | 62°F | Mostly Clear | 10 mph S | 3% |
| Friday | 83°F | Sunny | 10 to 15 mph SSW | 13% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 23% |
| Saturday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 15 mph S | 18% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 to 15 mph S | 40% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 10 mph SE | 40% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 34% |
| Monday | 82°F | Chance Showers And Thunderstorms | 10 mph E | 34% |
| Monday Night | 66°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 mph NE | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Delavan, MN
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a
Explore more for Delavan, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Winnebago, Mn (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.