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As of 01:13 CST

Weather in O'Fallon, MO

51°Current weather

O'Fallon, Friday, 6 November, 01:13

Overcast. Feels like 50°. High 54°, low 37°.

Pressure30.06 inHg
Wind10.4 mph NW
Humidity90%
Visibility6.2 mi
Dew point48°

10-day forecast for O'Fallon, MO: 29° to 68°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.

68°
Best day: Monday, November 9
47°
Worst day: Saturday, November 14

Tap any day below to see morning, afternoon, evening and overnight.

Sat, 0752° / 34°0Overcast
MorningMostly clear39°feels 36°
AfternoonOvercast52°feels 49°
EveningClear42°feels 41°
OvernightClear37°feels 37°
52 °Overcast

O'Fallon, Saturday, 7 November

Overcast. High 52°, low 34°.

Pressure30.27 inHg
Wind3.3 mph NW
Humidity52%
Visibility6.2 mi
Dew point34°
Sun, 0864° / 39°0Clear
MorningMostly clear43°feels 39°
AfternoonClear64°feels 63°
EveningClear52°feels 51°
OvernightClear40°feels 37°
64 °Clear

O'Fallon, Sunday, 8 November

Clear. High 64°, low 39°.

Pressure30.18 inHg
Wind6.2 mph W
Humidity58%
Visibility6.2 mi
Dew point46°
Mon, 0968° / 43°0Clear
MorningPartly cloudy49°feels 49°
AfternoonClear67°feels 66°
EveningPartly cloudy54°feels 53°
OvernightClear45°feels 43°
68 °Clear

O'Fallon, Monday, 9 November

Clear. High 68°, low 43°.

Pressure30.18 inHg
Wind5.3 mph SW
Humidity63%
Visibility6.2 mi
Dew point52°
Tue, 1066° / 47°0Clear
MorningClear52°feels 50°
AfternoonClear63°feels 61°
EveningClear54°feels 53°
OvernightClear49°feels 48°
66 °Clear

O'Fallon, Tuesday, 10 November

Clear. High 66°, low 47°.

Pressure30.09 inHg
Wind6.1 mph SW
Humidity57%
Visibility—
Dew point46°
Wed, 1163° / 45°0Overcast
MorningOvercast50°feels 49°
AfternoonOvercast61°feels 60°
EveningOvercast50°feels 47°
OvernightOvercast45°feels 42°
63 °Overcast

O'Fallon, Wednesday, 11 November

Overcast. High 63°, low 45°.

Pressure30.03 inHg
Wind6.7 mph NW
Humidity56%
Visibility—
Dew point45°
Thu, 1252° / 36°0Partly cloudy
MorningPartly cloudy40°feels 36°
AfternoonPartly cloudy49°feels 46°
EveningPartly cloudy43°feels 40°
OvernightPartly cloudy39°feels 35°
52 °Partly cloudy

O'Fallon, Thursday, 12 November

Partly cloudy. High 52°, low 36°.

Pressure30.09 inHg
Wind7.1 mph N
Humidity43%
Visibility—
Dew point27°
Fri, 1351° / 34°0Mostly clear
MorningMostly clear38°feels 34°
AfternoonMostly clear48°feels 45°
EveningMostly clear41°feels 36°
OvernightMostly clear37°feels 32°
51 °Mostly clear

O'Fallon, Friday, 13 November

Mostly clear. High 51°, low 34°.

Pressure30.03 inHg
Wind9.4 mph NW
Humidity45%
Visibility—
Dew point27°
Sat, 1447° / 29°0Clear
MorningClear34°feels 29°
AfternoonClear44°feels 42°
EveningClear39°feels 37°
OvernightClear35°feels 34°
47 °Clear

O'Fallon, Saturday, 14 November

Clear. High 47°, low 29°.

Pressure30.30 inHg
Wind5.5 mph NE
Humidity32%
Visibility—
Dew point15°
Sun, 1556° / 33°0Clear
MorningClear38°feels 35°
AfternoonClear52°feels 48°
EveningClear46°feels 43°
OvernightClear42°feels 37°
56 °Clear

O'Fallon, Sunday, 15 November

Clear. High 56°, low 33°.

Pressure30.36 inHg
Wind7.2 mph S
Humidity29%
Visibility—
Dew point19°

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, MO 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.