O'Fallon Weather

Sunday, 18 January 2026

0°C

Clear sky

Feels like: 0°C

💧 Humidity 0%

💨 Wind 0 km/h N

🌬️ Wind Gust 0 km/h

👁️ Visibility 10,000 km

🌡️ Pressure 0 mb

☀️ UV Index 0 (Low)

☁️ Cloud Cover 0%

🌧️ Precipitation 0.0 mm

O'Fallon Weather

O'Fallon is located in United States at coordinates 38.81°N, -90.70°E. The city has a population of approximately 85,040. Current weather conditions show clear sky with a temperature of 0°C.