Mount Ayr, IA Weather & Growing Conditions
Today
86°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Partly sunny. High near 86, with temperatures falling to around 84 in the afternoon. South southwest wind around 6 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 |
|---|---|---|---|---|
| Today | 86°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 6 mph SSW | 21% |
| Tonight | 64°F | Showers And Thunderstorms Likely | 7 to 10 mph NNE | 62% |
| Wednesday | 74°F | Showers And Thunderstorms Likely | 9 mph NE | 85% |
| Wednesday Night | 60°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 49% |
| Thursday | 81°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph ENE | 25% |
| Thursday Night | 63°F | Mostly Clear | 3 mph ESE | 7% |
| Friday | 85°F | Mostly Sunny | 3 to 7 mph SSE | 7% |
| Friday Night | 67°F | Mostly Clear | 6 mph S | 10% |
| Saturday | 89°F | Sunny | 5 to 10 mph SSW | 3% |
| Saturday Night | 72°F | Mostly Clear | 12 mph S | 8% |
| Sunday | 91°F | Mostly Sunny | 10 to 14 mph SSW | 7% |
| Sunday Night | 72°F | Partly Cloudy | 13 mph S | 11% |
| Monday | 92°F | Mostly Sunny | 12 to 15 mph SSW | 11% |
| Monday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 14 mph S | 19% |
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 Aug 4, 2026.