Superior, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a city in Dickinson County, Iowa.
Tonight
56°F
Patchy Fog
Patchy fog. Cloudy, with a low around 56. North northeast wind 10 to 15 mph.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Patchy Fog | 10 to 15 mph NNE | 10% |
| Sunday | 66°F | Patchy Fog then Mostly Cloudy | 15 mph NE | 8% |
| Sunday Night | 52°F | Chance Rain Showers | 10 to 15 mph ENE | 47% |
| Monday | 57°F | Rain Showers Likely | 10 mph ENE | 60% |
| Monday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 53% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph ENE | 4% |
| Tuesday Night | 44°F | Mostly Clear | 5 mph ESE | 0% |
| Wednesday | 65°F | Sunny | 5 to 10 mph SE | 3% |
| Wednesday Night | 51°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 21% |
| Thursday | 67°F | Chance Rain Showers | 5 to 10 mph SSE | 37% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 5 mph SE | 17% |
| Friday | 71°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph SE | 15% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 16% |
| Saturday | 70°F | Chance Rain Showers | 10 to 15 mph SSE | 32% |
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 20, 2026.