Anthon, IA Weather & Growing Conditions
Overnight
39°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 39, with temperatures rising to around 42 overnight. Northwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Chance Rain Showers | 10 mph NW | 26% |
| Wednesday | 47°F | Chance Rain Showers | 10 to 15 mph WNW | 33% |
| Wednesday Night | 38°F | Chance Rain Showers | 10 mph NW | 34% |
| Thursday | 48°F | Mostly Cloudy | 10 mph NNW | 9% |
| Thursday Night | 32°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Friday | 47°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Sunday | 57°F | Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 37°F | Clear | 5 mph S | 0% |
| Monday | 61°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 NW | 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.