Spillville, IA Weather & Growing Conditions
Today
74°F
Scattered Showers And Thunderstorms
Isolated rain showers before 4pm, then scattered showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 71 in the afternoon. West wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Scattered Showers And Thunderstorms | 8 mph W | 34% |
| Tonight | 59°F | Scattered Showers And Thunderstorms | 5 mph NW | 63% |
| Wednesday | 73°F | Partly Sunny | 5 mph N | 13% |
| Wednesday Night | 54°F | Mostly Clear | 3 mph NW | 1% |
| Thursday | 77°F | Sunny | 3 mph SW | 0% |
| Thursday Night | 59°F | Mostly Clear | 3 mph S | 1% |
| Friday | 80°F | Sunny | 3 to 9 mph S | 6% |
| Friday Night | 63°F | Mostly Clear | 8 mph S | 10% |
| Saturday | 81°F | Mostly Sunny | 5 to 8 mph S | 9% |
| Saturday Night | 67°F | Chance Rain Showers | 8 mph SW | 33% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 9 mph S | 33% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 6 mph S | 40% |
| Monday | 81°F | Chance Rain Showers | 6 to 9 mph S | 40% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 8 mph NE | 35% |
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
5a
Explore more for Spillville, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Decorah, Ia (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.