Home / United States / Saint Charles
Saint Charles climate
Typical historical weather for Saint Charles, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Saint Charles.
Annual average
10°C
across all months
Warmest month
28.6°C
Jul average high
Coolest month
-6.9°C
Jan average low
Annual rainfall
933mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
36°C
3 July 2020
Coldest day
-25.5°C
17 February 2021
Wettest day
71.1mm
16 August 2016
Windiest day
10.1m/s
8 March 2017
See the detail: Saint Charles on 16 August 2016.