Royal, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Royal, a city in Clay County, Iowa.
Today
74°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 7am, then patchy smoke and a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then patchy smoke and showers and thunderstorms likely. Mostly cloudy. High near 74, with temperatures falling to around 71 in the afternoon. North wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Royal
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Patchy Smoke | 5 to 15 mph N | 62% |
| Tonight | 54°F | Patchy Smoke then Mostly Cloudy | 0 to 5 mph NNW | 58% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph ENE | 1% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 82°F | Sunny | 5 to 10 mph S | 0% |
| Thursday Night | 60°F | Mostly Clear | 5 to 10 mph S | 4% |
| Friday | 86°F | Sunny | 5 to 15 mph SSW | 5% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph S | 15% |
| Saturday | 89°F | Sunny | 5 to 15 mph S | 7% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 mph ESE | 24% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SE | 24% |
| Sunday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph ESE | 26% |
| Monday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 15 mph E | 26% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 28% |
Forecast source: National Weather Service (api.weather.gov) for Royal (43.064, -95.284). Updated through the day.
Growing snapshot for Royal
Last spring frost
May 2
First fall frost
Oct 2
Growing season
154 days
Hardiness zone
5a
More local growing data for Royal: nearby ZIP 51357 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Spencer Muni Ap, Ia (8.3 mi from Royal). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.