Granger, IA Weather & Growing Conditions
Today
51°F
Cloudy
Cloudy. High near 51, with temperatures falling to around 49 in the afternoon. West wind 13 to 16 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Cloudy | 13 to 16 mph W | 11% |
| Tonight | 44°F | Cloudy then Chance Rain Showers | 13 mph W | 25% |
| Thursday | 53°F | Chance Rain Showers then Mostly Cloudy | 12 mph NW | 50% |
| Thursday Night | 39°F | Mostly Cloudy | 6 to 9 mph NNW | 5% |
| Friday | 50°F | Mostly Sunny | 3 to 7 mph N | 5% |
| Friday Night | 30°F | Partly Cloudy | 0 to 3 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 59°F | Sunny | 6 mph W | 1% |
| Sunday Night | 37°F | Clear | 5 mph SW | 0% |
| Monday | 65°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 2 to 6 mph WNW | 0% |
| Tuesday | 64°F | Sunny | 3 mph NNW | 0% |
| Tuesday Night | 42°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Granger, IA
Last spring frost
Apr 19
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
5b
Explore more for Granger, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Des Moines Wsfo-Johnston, Ia (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.