Arnolds Park, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arnolds Park, a city in Dickinson County, Iowa.
Today
73°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 7am, then a chance of rain showers and patchy smoke between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73. North northwest wind 5 to 15 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Arnolds Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 5 to 15 mph NNW | 49% |
| Tonight | 54°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NW | 42% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 81°F | Sunny | 5 to 10 mph SSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 10 mph S | 2% |
| Friday | 85°F | Sunny | 10 to 15 mph SSW | 8% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 18% |
| Saturday | 88°F | Sunny | 5 to 15 mph S | 11% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 26% |
| Sunday | 86°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ESE | 26% |
| Sunday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph E | 30% |
| Monday | 85°F | Chance Showers And Thunderstorms then Partly Sunny | 15 mph E | 30% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 28% |
Forecast source: National Weather Service (api.weather.gov) for Arnolds Park (43.360, -95.129). Updated through the day.
Growing snapshot for Arnolds Park
Last spring frost
May 1
First fall frost
Oct 6
Growing season
158 days
Hardiness zone
5a
More local growing data for Arnolds Park: nearby ZIP 51331 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Milford 4 Nw, Ia (3.1 mi from Arnolds Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.