O'Fallon weather
At 5:45 PM local time it was cloudy and 20°C (68°F). Light rain for 2 of the next 24 hours (under 1 mm/h, 0.3 mm total) — cloudy, but fine to be out. O'Fallon sits 170 m (558 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 O'Fallon, Illinois, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 2%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 2 of the next 24 hours (under 1 mm/h, 0.3 mm total) — cloudy, but fine to be out
Daily Forecast
About O'Fallon weather
Is it raining in O'Fallon right now?
No. It’s cloudy and 20° right now. Light rain for 2 of the next 24 hours (under 1 mm/h, 0.3 mm total) — cloudy, but fine to be out.
What’s the weather like in O'Fallon this week?
Over the next 7 days, expect highs of 15–22° and lows of 10–17°. Rain is likely on 2 of 7 days (Tuesday, Wednesday). The driest day looks like Monday.
Has it been raining in O'Fallon lately?
Barely. The past 7 days were mostly dry, with 0.5 mm of rain in total.
What should I pack for O'Fallon?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.