Weather in St. John, Missouri
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:03 PM ET · Refreshes every hour
79°F
Clear sky
Feels like 81°F
50%
Humidity
6 mph
Wind Speed
About Weather in St. John
St. John is located in Missouri (coordinates: 38.714758°N, 90.346265°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.