Spillville, IA Weather & Growing Conditions
This Afternoon
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 67 in the afternoon. Northeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Showers And Thunderstorms | 7 mph NE | 54% |
| Tonight | 56°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 60% |
| Sunday | 68°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph NE | 18% |
| Sunday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph NE | 21% |
| Monday | 60°F | Rain Showers Likely | 9 to 13 mph NE | 55% |
| Monday Night | 46°F | Rain Showers Likely | 6 to 9 mph NE | 55% |
| Tuesday | 60°F | Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 31% |
| Tuesday Night | 44°F | Partly Cloudy | 5 mph NE | 3% |
| Wednesday | 64°F | Mostly Sunny | 6 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph E | 3% |
| Thursday | 66°F | Partly Sunny | 3 mph SE | 13% |
| Thursday Night | 52°F | Mostly Cloudy | 1 mph E | 14% |
| Friday | 70°F | Partly Sunny | 3 mph E | 9% |
| Friday Night | 54°F | Mostly Cloudy | 2 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spillville, IA
Last spring frost
May 3
First fall frost
Oct 7
Growing season
157 days
Hardiness zone
4b
Explore more for Spillville, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Decorah, Ia (10.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.