Weather in Saint Charles, United States 🇺🇸
Weather Forecast in Saint Charles
As of now, Saint Charles is 22°C and overcast, feeling like 22°C. Relative humidity is 81%, with winds around 10 km/h, and the UV index is 0 (low). Looking ahead, Saint Charles should sit between roughly 21°C and 41°C over the coming days. ⚠️ Heat Advisory issued July 24 at 12:15PM CDT until July 27 at 9:00PM CDT by NWS St Louis MO
Hourly Forecast for Saint Charles
14-Day Forecast for Saint Charles
Patchy rain nearby
Sunny
Sunny
Sunny
Sunny
Sunny
Partly Cloudy
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Additional Forecasts for Saint Charles
Air Quality
Historical Weather
Weather Forecasts for Other Cities in United States
Browse Weather in United States by cities in alphabetical order:
Best Time to Be Outside in Saint Charles Today
The most comfortable window in Saint Charles today looks like 08:00 to 10:00, when it is around 24°C. It should stay dry through that window. The next likely rain is around 03:00.
Frequently Asked Questions about Weather in Saint Charles
What is the temperature in Saint Charles right now?
Saint Charles is sitting at 22°C (71°F) right now, overcast (feels like 22°C).
What's the weather like in Saint Charles right now?
Right now Saint Charles has Overcast, humidity 81%, wind 10 km/h SSE.
What is today's forecast for Saint Charles?
Today in Saint Charles: high 35°C, low 21°C, patchy rain nearby. Chance of rain: 72%.
What is the 7-day weather forecast for Saint Charles?
Daily highs and lows for Saint Charles:
- 2026-07-25: 35°C / 21°C
- 2026-07-26: 39°C / 24°C
- 2026-07-27: 41°C / 27°C
- 2026-07-28: 39°C / 26°C
- 2026-07-29: 35°C / 24°C
- 2026-07-30: 35°C / 23°C
- 2026-07-31: 29°C / 24°C
Is it going to rain in Saint Charles today?
There is a 72% chance of rain in Saint Charles today. Total expected precipitation: 5.58 mm.
What is the wind speed in Saint Charles right now?
Wind in Saint Charles is currently 10 km/h (6 mph) from the SSE.
What is the UV index in Saint Charles right now?
The UV index in Saint Charles is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
