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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

WhenTempForecastWindPrecip
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

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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.