Iona, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iona, a city in Murray County, Minnesota.
This Afternoon
51°F
Rain Showers
Rain showers. Cloudy. High near 51, with temperatures falling to around 43 in the afternoon. North northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Iona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Rain Showers | 20 mph NNW | 100% |
| Tonight | 38°F | Rain Showers | 15 to 20 mph NNW | 100% |
| Wednesday | 43°F | Rain Showers | 15 to 20 mph NW | 92% |
| Wednesday Night | 35°F | Rain Showers Likely | 15 mph NNW | 66% |
| Thursday | 43°F | Slight Chance Rain Showers | 10 to 15 mph NNW | 19% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph N | 7% |
| Friday | 44°F | Partly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph SSW | 1% |
| Saturday | 53°F | Mostly Sunny | 5 to 10 mph WSW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 5 to 10 mph W | 4% |
| Sunday | 56°F | Sunny | 5 to 10 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 to 10 mph SW | 2% |
| Monday | 58°F | Mostly Sunny | 10 to 15 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 5 to 10 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Iona (43.916, -95.783). Updated through the day.
Growing snapshot for Iona
Last spring frost
May 7
First fall frost
Sep 29
Growing season
145 days
Hardiness zone
5a
More local growing data for Iona: nearby ZIP 56141 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lake Wilson, Mn (10.6 mi from Iona). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.