Polk City, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Polk City, a city in Polk County, Iowa.
Today
50°F
Cloudy
Cloudy, with a high near 50. West southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
7-day forecast for Polk City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Cloudy | 14 mph WSW | 15% |
| Tonight | 43°F | Slight Chance Rain Showers | 13 mph W | 24% |
| Thursday | 51°F | Slight Chance Rain Showers then Cloudy | 13 mph NW | 22% |
| Thursday Night | 38°F | Mostly Cloudy | 6 to 10 mph N | 3% |
| Friday | 49°F | Mostly Sunny | 3 to 7 mph NNE | 1% |
| Friday Night | 30°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Saturday | 54°F | Mostly Sunny | 1 to 6 mph SW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 61°F | Sunny | 5 mph W | 0% |
| Sunday Night | 38°F | Clear | 3 mph SW | 0% |
| Monday | 67°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 2 to 6 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 mph NNW | 1% |
| Tuesday Night | 42°F | Partly Cloudy | 3 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Polk City (41.782, -93.723). Updated through the day.
Growing snapshot for Polk City
Last spring frost
Apr 19
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
5b
More local growing data for Polk City: nearby ZIP 50226 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Des Moines Wsfo-Johnston, Ia (4.3 mi from Polk City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.