Ames, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ames, a city in Story County, Iowa.
Tonight
46°F
Rain Showers
Rain showers before 4am. Cloudy. Low around 46, with temperatures rising to around 48 overnight. Northwest wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Ames
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Rain Showers | 8 to 14 mph NW | 81% |
| Wednesday | 53°F | Chance Rain Showers | 10 to 14 mph W | 33% |
| Wednesday Night | 43°F | Cloudy then Chance Rain Showers | 10 mph W | 44% |
| Thursday | 52°F | Rain Showers Likely | 10 mph NW | 63% |
| Thursday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph N | 16% |
| Friday | 52°F | Partly Sunny | 6 mph N | 4% |
| Friday Night | 33°F | Partly Cloudy | 2 mph NNE | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 37°F | Mostly Clear | 2 mph W | 4% |
| Sunday | 62°F | Sunny | 2 to 6 mph W | 5% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 66°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Ames (42.026, -93.621). Updated through the day.
Growing snapshot for Ames
Last spring frost
Apr 26
First fall frost
Oct 8
Growing season
164 days
Hardiness zone
5b
More local growing data for Ames: nearby ZIP 50012 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ames Muni Ap, Ia (3 mi from Ames). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.