St. Anthony, IA Weather & Growing Conditions
Today
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 80, with temperatures falling to around 76 in the afternoon. West northwest wind around 8 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 | 80°F | Chance Showers And Thunderstorms | 8 mph WNW | 37% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 8 mph NNE | 86% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 6 mph NE | 46% |
| Wednesday Night | 55°F | Slight Chance Rain Showers | 3 mph NE | 18% |
| Thursday | 80°F | Sunny | 2 mph ENE | 1% |
| Thursday Night | 60°F | Mostly Clear | 2 mph SE | 0% |
| Friday | 83°F | Sunny | 2 to 7 mph SSE | 8% |
| Friday Night | 65°F | Mostly Clear | 6 mph S | 13% |
| Saturday | 87°F | Sunny | 3 to 8 mph S | 13% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 9 mph SSW | 16% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SSE | 16% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 8 mph SSE | 34% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 34% |
| Monday Night | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 mph E | 30% |
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 Aug 4, 2026.