Grand Mound, IA Weather & Growing Conditions
Today
54°F
Chance Rain Showers
A chance of rain showers before 3pm. Cloudy, with a high near 54. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Chance Rain Showers | 10 mph SW | 33% |
| Tonight | 46°F | Slight Chance Rain Showers | 10 mph SW | 22% |
| Thursday | 55°F | Chance Rain Showers | 5 to 10 mph W | 51% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph N | 13% |
| Friday | 50°F | Partly Sunny | 5 mph N | 4% |
| Friday Night | 31°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Sunny | 0 mph | 0% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 2% |
| Sunday | 57°F | Sunny | 0 to 5 mph W | 2% |
| Sunday Night | 36°F | Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 0 to 5 mph W | 0% |
| Tuesday | 63°F | Sunny | 0 mph | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Mound, IA
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
Explore more for Grand Mound, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Lowden, Ia (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.