Granville, IA Weather & Growing Conditions
Today
46°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 46. West northwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Chance Rain Showers | 15 to 20 mph WNW | 54% |
| Tonight | 38°F | Chance Rain Showers | 10 to 15 mph NW | 45% |
| Thursday | 46°F | Mostly Cloudy | 10 to 15 mph NNW | 8% |
| Thursday Night | 32°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Saturday | 50°F | Mostly Sunny | 5 mph SSW | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 55°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Monday | 60°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph WNW | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 0 to 5 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Granville, IA
Last spring frost
Apr 29
First fall frost
Oct 10
Growing season
163 days
Hardiness zone
5a
Explore more for Granville, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Primghar, Ia (13.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.