St. Anthony, IA Weather & Growing Conditions
Today
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 74 in the afternoon. West wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Chance Showers And Thunderstorms | 6 mph W | 38% |
| Tonight | 60°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 37% |
| Sunday | 65°F | Chance Rain Showers | 13 mph NE | 31% |
| Sunday Night | 55°F | Chance Rain Showers | 12 mph ENE | 46% |
| Monday | 61°F | Chance Rain Showers | 12 mph NE | 47% |
| Monday Night | 49°F | Chance Rain Showers | 6 to 10 mph NE | 47% |
| Tuesday | 60°F | Partly Sunny | 8 mph ENE | 14% |
| Tuesday Night | 45°F | Partly Cloudy | 2 to 6 mph ENE | 2% |
| Wednesday | 65°F | Sunny | 5 mph ENE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 2 mph E | 5% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph ESE | 15% |
| Thursday Night | 54°F | Mostly Cloudy | 2 mph E | 11% |
| Friday | 68°F | Partly Sunny | 1 to 5 mph ESE | 7% |
| Friday Night | 55°F | Mostly Cloudy | 3 mph ESE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Anthony, IA
Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a
Explore more for St. Anthony, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Colo, Ia (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.