Nassau, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nassau, a city in Lac Qui Parle County, Minnesota.
Today
63°F
Patchy Fog then Cloudy
Patchy fog before 10am. Cloudy, with a high near 63. Northeast wind around 7 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Nassau
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Patchy Fog then Cloudy | 7 mph NE | 14% |
| Tonight | 51°F | Mostly Cloudy | 7 mph NNE | 6% |
| Sunday | 66°F | Cloudy | 6 to 10 mph NE | 9% |
| Sunday Night | 48°F | Mostly Cloudy | 5 to 8 mph ENE | 5% |
| Monday | 65°F | Mostly Cloudy | 7 mph E | 8% |
| Monday Night | 43°F | Partly Cloudy | 2 to 6 mph ESE | 3% |
| Tuesday | 66°F | Mostly Sunny | 2 to 10 mph SE | 2% |
| Tuesday Night | 44°F | Mostly Clear | 8 mph SE | 1% |
| Wednesday | 70°F | Mostly Sunny | 6 to 13 mph SSE | 7% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 9 mph SSE | 21% |
| Thursday | 71°F | Slight Chance Rain Showers then Partly Sunny | 6 to 10 mph SSE | 21% |
| Thursday Night | 52°F | Partly Cloudy | 7 mph SSE | 12% |
| Friday | 74°F | Partly Sunny | 5 to 12 mph SSE | 12% |
| Friday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph SSE | 17% |
Forecast source: National Weather Service (api.weather.gov) for Nassau (45.068, -96.442). Updated through the day.
Growing snapshot for Nassau
Last spring frost
May 3
First fall frost
Oct 2
Growing season
151 days
Hardiness zone
4b
More local growing data for Nassau: nearby ZIP 56257 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Madison Wwtp, Mn (11.8 mi from Nassau). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.