Plano, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plano, a city in Appanoose County, Iowa.
Tonight
70°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South southeast wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Plano
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 8 mph SSE | 27% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 6 to 10 mph SW | 28% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph NNW | 70% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 5 to 10 mph NNE | 66% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 9 mph NE | 66% |
| Monday | 62°F | Rain Showers Likely | 12 mph NE | 61% |
| Monday Night | 53°F | Chance Rain Showers | 9 mph NE | 52% |
| Tuesday | 60°F | Slight Chance Rain Showers | 8 mph NE | 18% |
| Tuesday Night | 48°F | Mostly Cloudy | 2 to 6 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 mph ENE | 3% |
| Thursday | 66°F | Partly Sunny | 2 mph E | 10% |
| Thursday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph ENE | 15% |
| Friday | 68°F | Slight Chance Rain Showers | 3 mph E | 15% |
Forecast source: National Weather Service (api.weather.gov) for Plano (40.756, -93.047). Updated through the day.
Growing snapshot for Plano
Last spring frost
Apr 18
First fall frost
Oct 23
Growing season
187 days
Hardiness zone
5b
More local growing data for Plano: nearby ZIP 52581 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rathbun Dam, Ia (9.1 mi from Plano). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.