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Ames, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ames, a city in Story County, Iowa.

This Afternoon
85°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 78 in the afternoon. North northwest wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Ames

WhenTempForecastWindPrecip
This Afternoon 85°F Slight Chance Showers And Thunderstorms 8 mph NNW 22%
Tonight 61°F Chance Showers And Thunderstorms 6 to 10 mph N 40%
Sunday 65°F Chance Drizzle 12 mph NE 35%
Sunday Night 56°F Chance Drizzle then Rain Showers Likely 12 mph ENE 58%
Monday 59°F Rain Showers 10 mph NE 84%
Monday Night 52°F Rain Showers 6 to 9 mph NE 77%
Tuesday 61°F Slight Chance Rain Showers then Mostly Cloudy 7 mph NE 17%
Tuesday Night 47°F Partly Cloudy 2 to 6 mph ENE 3%
Wednesday 65°F Mostly Sunny 5 mph E 0%
Wednesday Night 52°F Mostly Cloudy 3 mph ESE 9%
Thursday 67°F Slight Chance Rain Showers 1 to 5 mph SE 24%
Thursday Night 57°F Slight Chance Rain Showers 3 mph ESE 21%
Friday 69°F Slight Chance Rain Showers then Mostly Cloudy 1 to 6 mph ESE 20%
Friday Night 59°F Mostly Cloudy 3 mph ESE 10%

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

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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 Sep 20, 2026.