Weather archive in O Fallon

Average temperature in O Fallon for a year

Average day and night temperatures graph in O Fallon for the history of our observations.

Wind direction graph in O Fallon using average values according to our data.

NNorthern

NENortheastern

EEeastern

SESoutheastern

SSouthern

SWSouthwestern

WWestern

NWNorthwestern

11.5%

5.8%

10.1%

10%

20.9%

10.5%

16.1%

15.1%

Chance of precipitation during the year:

Average atmospheric pressure during the year:

Graph displays the average yearly atmospheric pressure in O Fallon.

Minimum and maximum
world's temperature today

Siorapaluk

Jacobābād

Temperature units

°F°C

Icons