Mount Ayr, IA Weather & Growing Conditions
Today
51°F
Cloudy
Cloudy. High near 51, with temperatures falling to around 49 in the afternoon. West wind 12 to 15 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Cloudy | 12 to 15 mph W | 11% |
| Tonight | 42°F | Mostly Cloudy | 10 mph W | 18% |
| Thursday | 52°F | Slight Chance Rain Showers then Cloudy | 10 mph NW | 20% |
| Thursday Night | 41°F | Mostly Cloudy | 8 mph N | 2% |
| Friday | 50°F | Partly Sunny | 3 to 8 mph N | 3% |
| Friday Night | 31°F | Partly Cloudy | 2 mph ENE | 0% |
| Saturday | 52°F | Mostly Sunny | 3 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 59°F | Sunny | 5 mph W | 0% |
| Sunday Night | 37°F | Clear | 5 mph SW | 0% |
| Monday | 64°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 41°F | Clear | 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 mph N | 0% |
| Tuesday Night | 44°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Ayr, IA
Last spring frost
Apr 25
First fall frost
Oct 12
Growing season
169 days
Hardiness zone
5b
Explore more for Mount Ayr, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Mt Ayr, Ia (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.