Harman US

High Amana, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for High Amana, a community in Iowa County, Iowa.

Tonight
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. Low around 62, with temperatures rising to around 65 overnight. North wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for High Amana

WhenTempForecastWindPrecip
Tonight 62°F Showers And Thunderstorms Likely 5 to 10 mph N 79%
Sunday 66°F Rain Showers Likely 10 to 15 mph NE 55%
Sunday Night 56°F Chance Rain Showers 10 to 15 mph NE 53%
Monday 61°F Rain Showers Likely 10 to 15 mph NE 72%
Monday Night 51°F Rain Showers Likely 10 mph NE 72%
Tuesday 60°F Chance Rain Showers 10 mph NE 33%
Tuesday Night 48°F Partly Cloudy 5 to 10 mph NE 7%
Wednesday 63°F Mostly Sunny 5 mph NE 2%
Wednesday Night 51°F Partly Cloudy 0 to 5 mph NE 1%
Thursday 66°F Partly Sunny 0 to 5 mph E 13%
Thursday Night 56°F Slight Chance Rain Showers 0 mph 22%
Friday 69°F Slight Chance Rain Showers then Partly Sunny 0 to 5 mph E 18%
Friday Night 57°F Partly Cloudy 0 to 5 mph E 12%
Saturday 69°F Partly Sunny then Slight Chance Rain Showers 0 to 5 mph E 17%

Forecast source: National Weather Service (api.weather.gov) for High Amana (41.801, -91.942). Updated through the day.

Growing snapshot for High Amana

Last spring frost
Apr 28
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5b

More local growing data for High Amana: nearby ZIP 52307 weather · frost dates · planting calendar · Iowa frost dates

Nearby towns & communities

All Iowa locations ›

Climate data from the nearest NOAA station, Williamsburg 1E, Ia (10 mi from High Amana). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.