Temperature for 10 days Country Inn & Suites By Carlson, O'Fallon, MO, F° Atmospheric pressure for 10 days in Country Inn & Suites By Carlson, O'Fallon, MO, hPa Precipitation for 10 days in Country Inn & Suites By Carlson, O'Fallon, MO, inch Wind for 10 days in Country Inn & Suites By Carlson, O'Fallon, MO, mph 24-hour meteogram Country Inn & Suites By Carlson, O'Fallon, MO