Saint Charles weather
At 7:15 PM local time it was cloudy and 18°C (64°F). Little to no rain in the next 24 hours. Best months for weather: Apr–Oct. Saint Charles sits 162 m (532 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Saint Charles, Missouri, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 2%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season Apr–OctOff season Dec–Feb
About Saint Charles weather
Is it raining in Saint Charles right now?
No. It’s cloudy and 18° right now. Little to no rain in the next 24 hours.
What’s the weather like in Saint Charles this week?
Over the next 7 days, expect highs of 12–22° and lows of 10–19°. Rain is likely on 4 of 7 days (Tuesday, Wednesday, Thursday, Friday). The driest day looks like Monday.
Has it been raining in Saint Charles lately?
Barely. The past 7 days were mostly dry, with 0.1 mm of rain in total.
What should I pack for Saint Charles?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Saint Charles weather by month
When is the best time to visit Saint Charles?
Based on weather alone, the best time to visit Saint Charles is Apr–Oct, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 3°C (37°F) in January to 31°C (88°F) in July.
What is the rainiest month in Saint Charles?
May is the wettest month, with about 126 mm (5.0 in) of rain on average. February is the driest, with about 57 mm (2.2 in).
What is the hottest month in Saint Charles?
July is the warmest, with average highs of 31°C (88°F) and lows of 20°C (68°F). January is the coolest, with highs of 3°C (37°F) and lows of -7°C (20°F).
Does Saint Charles have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is May at about 126 mm (5.0 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months