O'Fallon, MO 10-Day Weather Charts

24 Hour Forecast

Current Conditions - Clear. Temperature is 74°F23°C, dew point 62°F17°C, humidity 66%. Wind direction is W at 3 mph5 km/h with visibility of 10 mi16 km. Barometric pressure is 29.92 in1013 mb.

Today - Partly sunny. Highs in the lower 90s. West winds 5 to 10 mph... Full Forecast

Tonight - Showers likely with a chance of thunderstorms. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70%... Full Forecast

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10 Day High/Low Temp Chart

10 Day High/Low Temp Chart

10 Day POP Chart

10 Day Dew Point Chart

10 Day Dew Point Chart

10 Day Humidity Chart

10 Day UV Index Chart

10 Day Barometric Pressure Chart

10 Day Barometric Pressure Chart