Ankeny, IA Weather & Growing Conditions
This Afternoon
81°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 81, with temperatures falling to around 77 in the afternoon. Northwest wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Slight Chance Showers And Thunderstorms | 8 mph NW | 22% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 9 mph N | 61% |
| Sunday | 66°F | Chance Rain Showers then Chance Drizzle | 12 mph NNE | 38% |
| Sunday Night | 57°F | Rain Showers Likely | 12 mph NE | 57% |
| Monday | 59°F | Rain Showers | 12 mph NE | 82% |
| Monday Night | 53°F | Rain Showers Likely | 9 mph NE | 74% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph NE | 17% |
| Tuesday Night | 48°F | Partly Cloudy | 3 to 7 mph NE | 2% |
| Wednesday | 64°F | Mostly Sunny | 5 mph ENE | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 3 mph E | 7% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 mph SE | 21% |
| Thursday Night | 58°F | Slight Chance Rain Showers | 3 mph ESE | 21% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 21% |
| Friday Night | 59°F | Mostly Cloudy | 3 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ankeny, IA
Last spring frost
Apr 23
First fall frost
Oct 15
Growing season
173 days
Hardiness zone
5b
Explore more for Ankeny, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Ankeny, Ia (4.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.