Superior, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a city in Dickinson County, Iowa.
Today
73°F
Patchy Smoke then Showers And Thunderstorms
Patchy smoke and scattered rain showers before 1pm, then showers and thunderstorms. Partly sunny, with a high near 73. North northwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke then Showers And Thunderstorms | 5 to 15 mph NNW | 77% |
| Tonight | 54°F | Scattered Rain Showers then Mostly Cloudy | 0 to 5 mph WNW | 50% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph ENE | 1% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 81°F | Sunny | 5 to 10 mph SSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 10 mph S | 2% |
| Friday | 84°F | Sunny | 10 to 15 mph SSW | 9% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 21% |
| Saturday | 86°F | Sunny | 5 to 15 mph S | 12% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 15 mph ESE | 26% |
| Sunday | 85°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ESE | 26% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 30% |
| Monday | 84°F | Chance Showers And Thunderstorms then Partly Sunny | 15 mph E | 30% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 29% |
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 Aug 4, 2026.