Weather in Saint Charles, United States 🇺🇸
As of now, Saint Charles is 35°C and sunny, feeling like 39°C. Relative humidity is 48%, with winds around 17 km/h, and the UV index is 8 (very high). Looking ahead, Saint Charles should sit between roughly 19°C and 36°C over the coming days.
Hourly Forecast for Saint Charles
14-Day Forecast for Saint Charles
Sunny
Sunny
Sunny
Sunny
Overcast
Sunny
Sunny
Patchy rain nearby
Light rain shower
Sunny
Sunny
Sunny
Sunny
Sunny
Additional Forecasts for Saint Charles
Air Quality
Historical Weather
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Best Time to Be Outside in Saint Charles Today
The most comfortable window in Saint Charles today looks like 17:00 to 20:00, when it is around 32°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Saint Charles
What is the temperature in Saint Charles right now?
Saint Charles is sitting at 35°C (94°F) right now, sunny (feels like 39°C).
What's the weather like in Saint Charles right now?
Right now Saint Charles has Sunny, humidity 48%, wind 17 km/h ENE.
What is today's forecast for Saint Charles?
Today in Saint Charles: high 36°C, low 23°C, sunny. Chance of rain: 4%.
What is the 7-day weather forecast for Saint Charles?
Daily highs and lows for Saint Charles:
- 2026-09-06: 36°C / 23°C
- 2026-09-07: 33°C / 19°C
- 2026-09-08: 36°C / 20°C
- 2026-09-09: 39°C / 24°C
- 2026-09-10: 28°C / 22°C
- 2026-09-11: 31°C / 19°C
- 2026-09-12: 34°C / 21°C
Is it going to rain in Saint Charles today?
There is a 4% chance of rain in Saint Charles today.
What is the wind speed in Saint Charles right now?
Wind in Saint Charles is currently 17 km/h (11 mph) from the ENE.
What is the UV index in Saint Charles right now?
The UV index in Saint Charles is currently 8 (very high). Sun protection is recommended when the index is 3 or higher.
