South Amana, IA Weather & Growing Conditions
Overnight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then patchy fog and showers and thunderstorms likely. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 60% |
| Saturday | 81°F | Patchy Fog | 5 to 10 mph S | 70% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph NW | 74% |
| Sunday | 68°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 67% |
| Sunday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 54% |
| Monday | 62°F | Chance Rain Showers | 15 mph NE | 54% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 10 mph NE | 26% |
| Tuesday Night | 46°F | Mostly Clear | 5 to 10 mph NE | 5% |
| Wednesday | 65°F | Sunny | 5 mph NE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 66°F | Mostly Sunny | 5 mph NE | 7% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph E | 5% |
| Friday | 69°F | Mostly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Amana, IA
Last spring frost
Apr 28
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5a
Explore more for South Amana, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Williamsburg 1E, Ia (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.