Superior, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a city in Dickinson County, Iowa.
This Afternoon
62°F
Patchy Fog
Patchy fog and a slight chance of rain showers. Cloudy, with a high near 62. North wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Patchy Fog | 10 mph N | 15% |
| Tonight | 55°F | Patchy Fog | 15 mph NNE | 17% |
| Sunday | 65°F | Mostly Cloudy | 15 mph NE | 11% |
| Sunday Night | 52°F | Chance Rain Showers | 10 to 15 mph ENE | 37% |
| Monday | 60°F | Chance Rain Showers | 10 mph ENE | 37% |
| Monday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 25% |
| Tuesday | 62°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Tuesday Night | 43°F | Mostly Clear | 5 mph ESE | 1% |
| Wednesday | 65°F | Sunny | 5 to 10 mph SE | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph SE | 13% |
| Thursday | 66°F | Slight Chance Rain Showers | 5 to 10 mph SSE | 18% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph SE | 9% |
| Friday | 69°F | Partly Sunny | 5 to 10 mph SE | 9% |
| Friday Night | 54°F | Mostly Cloudy | 5 mph SSE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Superior (43.434, -94.947). Updated through the day.
Growing snapshot for Superior
Last spring frost
Apr 28
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
5a
More local growing data for Superior: nearby ZIP 51363 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Spirit Lake, Ia (9.7 mi from Superior). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.