Granger, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Granger, a city in Polk County, Iowa.
Today
52°F
Cloudy
Cloudy. High near 52, with temperatures falling to around 49 in the afternoon. West wind 10 to 16 mph, with gusts as high as 25 mph.
7-day forecast for Granger
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Cloudy | 10 to 16 mph W | 14% |
| Tonight | 44°F | Cloudy then Chance Rain Showers | 13 mph W | 25% |
| Thursday | 53°F | Chance Rain Showers then Mostly Cloudy | 13 mph NW | 51% |
| 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 | 36°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 60°F | Sunny | 5 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 | 5 mph NNW | 0% |
| Tuesday Night | 42°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Granger (41.762, -93.824). Updated through the day.
Growing snapshot for Granger
Last spring frost
Apr 19
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
5b
More local growing data for Granger: nearby ZIP 50109 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Alleman
Altoona
Ankeny
Bondurant
Clive
Des Moines
Elkhart
Grimes
Johnston
Maxwell
Mitchellville
Pleasant Hill
Polk City
Runnells
Saylorville
Sheldahl
Slater
Urbandale
West Des Moines
Windsor Heights
Climate data from the nearest NOAA station, Des Moines Wsfo-Johnston, Ia (4.6 mi from Granger). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.