Anthon, IA Weather & Growing Conditions
Tonight
39°F
Rain Showers
Rain showers. Cloudy. Low around 39, with temperatures rising to around 42 overnight. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Rain Showers | 10 to 15 mph NW | 78% |
| Wednesday | 47°F | Chance Rain Showers | 10 to 15 mph WNW | 50% |
| Wednesday Night | 37°F | Chance Rain Showers | 5 to 10 mph NW | 35% |
| Thursday | 48°F | Chance Rain Showers | 10 mph NNW | 34% |
| Thursday Night | 33°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Friday | 49°F | Partly Sunny | 0 mph | 0% |
| Friday Night | 31°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 56°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 4% |
| Sunday | 59°F | Sunny | 0 to 5 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 60°F | Mostly Sunny | 0 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Anthon, IA
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
Explore more for Anthon, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Mapleton No.2, Ia (16.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.