Ryan, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ryan, a city in Delaware County, Iowa.
Overnight
63°F
Partly Cloudy
Partly cloudy, with a low around 63. South wind 5 to 10 mph.
7-day forecast for Ryan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Partly Cloudy | 5 to 10 mph S | 0% |
| Tuesday | 79°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph W | 28% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 70% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 5 mph N | 46% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 5 mph N | 27% |
| Thursday | 78°F | Slight Chance Rain Showers then Sunny | 0 to 5 mph NE | 18% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 1% |
| Friday | 81°F | Sunny | 0 to 5 mph SE | 3% |
| Friday Night | 64°F | Mostly Clear | 5 mph S | 9% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph S | 11% |
| Saturday Night | 69°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 10 mph S | 24% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 10 mph S | 24% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 10 mph S | 41% |
| Monday | 84°F | Chance Showers And Thunderstorms | 10 mph S | 41% |
Forecast source: National Weather Service (api.weather.gov) for Ryan (42.352, -91.485). Updated through the day.
Growing snapshot for Ryan
Last spring frost
May 3
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
5a
More local growing data for Ryan: nearby ZIP 52330 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Coggon, Ia (5.2 mi from Ryan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.