Weather in St. Marys, Iowa
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:22 PM ET · Refreshes every hour
81°F
Clear sky
Feels like 81°F
33%
Humidity
7 mph
Wind Speed
About Weather in St. Marys
St. Marys is located in Iowa (coordinates: 41.307698°N, 93.733845°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.