Ryan, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ryan, a city in Delaware County, Iowa.
This Afternoon
67°F
Showers And Thunderstorms
Rain showers likely before 3pm, then showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 64 in the afternoon. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
7-day forecast for Ryan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms | 15 mph SE | 85% |
| Tonight | 50°F | Showers And Thunderstorms Likely | 10 to 15 mph S | 72% |
| Wednesday | 52°F | Chance Rain Showers | 10 to 15 mph SW | 50% |
| Wednesday Night | 44°F | Chance Rain Showers | 15 mph SW | 36% |
| Thursday | 51°F | Rain Showers Likely | 10 to 15 mph W | 72% |
| Thursday Night | 39°F | Mostly Cloudy | 10 mph N | 14% |
| Friday | 49°F | Partly Sunny | 5 to 10 mph N | 4% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph NW | 1% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 5% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 10% |
| Sunday Night | 36°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
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 Nov 3, 2026.