Weather in O'Fallon, IL
O'Fallon, Saturday, 31 October, 04:28
Overcast. Feels like 57°. High 70°, low 58°.
10-day forecast for O'Fallon, IL: 49° to 71°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
Tap any day below to see morning, afternoon, evening and overnight.
0.12
62°feels 62°70°feels 70°61°feels 60°63°feels 64°O'Fallon, Sunday, 1 November
Rain. High 71°, low 58°.
059°feels 59°67°feels 67°66°feels 66°58°feels 57°O'Fallon, Monday, 2 November
Overcast. High 68°, low 58°.
0.0265°feels 65°70°feels 70°68°feels 69°65°feels 64°O'Fallon, Tuesday, 3 November
Light rain. High 70°, low 65°.
1.0265°feels 66°68°feels 69°64°feels 64°66°feels 66°O'Fallon, Wednesday, 4 November
Heavy rain. High 69°, low 63°.
0.2665°feels 65°68°feels 68°60°feels 60°58°feels 58°O'Fallon, Thursday, 5 November
Rain. High 69°, low 57°.
0
54°feels 52°66°feels 65°61°feels 60°
59°feels 58°O'Fallon, Friday, 6 November
Clear. High 69°, low 49°.
0.1362°feels 62°64°feels 65°64°feels 64°62°feels 62°O'Fallon, Saturday, 7 November
Light rain. High 69°, low 61°.
1.3460°feels 61°61°feels 62°61°feels 61°61°feels 61°O'Fallon, Sunday, 8 November
Heavy rain. High 63°, low 60°.
0.3160°feels 59°67°feels 66°60°feels 58°57°feels 56°O'Fallon, Monday, 9 November
Rain. High 68°, low 56°.
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in O'Fallon, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.
Sun and moon today
Weather history
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