Royal, IA Weather & Growing Conditions
This Afternoon
46°F
Rain Showers Likely
Rain showers likely. Cloudy, with a high near 46. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Rain Showers Likely | 15 mph W | 69% |
| Tonight | 37°F | Rain Showers | 15 mph NW | 95% |
| Thursday | 46°F | Cloudy | 15 mph NNW | 6% |
| Thursday Night | 30°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 27°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Saturday Night | 32°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 58°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 36°F | Clear | 5 to 10 mph SSW | 0% |
| Monday | 63°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph NNW | 1% |
| Tuesday Night | 37°F | Partly Cloudy | 5 mph NNE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Royal, IA
Last spring frost
May 2
First fall frost
Oct 2
Growing season
154 days
Hardiness zone
5a
Explore more for Royal, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Spencer Muni Ap, Ia (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.