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As of 00:41 CST

Weather in O'Fallon, MO

37°Current weather

O'Fallon, Sunday, 8 November, 00:41

Clear. Feels like 37°. High 64°, low 35°.

Pressure30.21 inHg
Wind1 mph SW
Humidity92%
Visibility6.2 mi
Dew point34°

10-day forecast for O'Fallon, MO: 28° to 69°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

69°
Best day: Monday, November 16
66° · 0.71 in
Worst day: Tuesday, November 17

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

Mon, 0965° / 40°0Clear
MorningMostly clear44°feels 41°
AfternoonClear65°feels 64°
EveningClear54°feels 53°
OvernightClear43°feels 41°
65 °Clear

O'Fallon, Monday, 9 November

Clear. High 65°, low 40°.

Pressure30.18 inHg
Wind4.5 mph SW
Humidity55%
Visibility6.2 mi
Dew point47°
Tue, 1066° / 47°0Clear
MorningClear50°feels 49°
AfternoonClear66°feels 65°
EveningClear55°feels 54°
OvernightClear50°feels 49°
66 °Clear

O'Fallon, Tuesday, 10 November

Clear. High 66°, low 47°.

Pressure30.09 inHg
Wind4.4 mph W
Humidity62%
Visibility6.2 mi
Dew point51°
Wed, 1166° / 47°0.04Light rain
MorningOvercast53°feels 52°
AfternoonOvercast64°feels 64°
EveningLight rain55°feels 54°
OvernightPartly cloudy48°feels 48°
66 °Light rain

O'Fallon, Wednesday, 11 November

Light rain. High 66°, low 47°.

Pressure29.85 inHg
Wind10.5 mph W
Humidity67%
Visibility6.2 mi
Dew point56°
Thu, 1252° / 42°0Overcast
MorningOvercast46°feels 42°
AfternoonOvercast51°feels 48°
EveningOvercast46°feels 40°
OvernightOvercast42°feels 37°
52 °Overcast

O'Fallon, Thursday, 12 November

Overcast. High 52°, low 42°.

Pressure29.97 inHg
Wind13.8 mph N
Humidity53%
Visibility—
Dew point35°
Fri, 1345° / 33°0Overcast
MorningOvercast39°feels 33°
AfternoonOvercast42°feels 37°
EveningOvercast36°feels 30°
OvernightOvercast34°feels 28°
45 °Overcast

O'Fallon, Friday, 13 November

Overcast. High 45°, low 33°.

Pressure30.12 inHg
Wind12.4 mph N
Humidity53%
Visibility—
Dew point27°
Sat, 1448° / 28°0Clear
MorningClear33°feels 27°
AfternoonClear44°feels 40°
EveningClear38°feels 34°
OvernightClear34°feels 29°
48 °Clear

O'Fallon, Saturday, 14 November

Clear. High 48°, low 28°.

Pressure30.15 inHg
Wind8.2 mph NW
Humidity36%
Visibility—
Dew point17°
Sun, 1562° / 34°0Clear
MorningClear41°feels 36°
AfternoonClear57°feels 55°
EveningClear51°feels 49°
OvernightClear46°feels 42°
62 °Clear

O'Fallon, Sunday, 15 November

Clear. High 62°, low 34°.

Pressure30.12 inHg
Wind10 mph SW
Humidity38%
Visibility—
Dew point30°
Mon, 1669° / 46°0Overcast
MorningOvercast52°feels 49°
AfternoonOvercast65°feels 64°
EveningOvercast60°feels 58°
OvernightOvercast57°feels 55°
69 °Overcast

O'Fallon, Monday, 16 November

Overcast. High 69°, low 46°.

Pressure30.06 inHg
Wind9.1 mph S
Humidity37%
Visibility—
Dew point37°
Tue, 1766° / 54°0.71Rain
MorningRain57°feels 56°
AfternoonRain65°feels 64°
EveningRain62°feels 62°
OvernightRain60°feels 60°
66 °Rain

O'Fallon, Tuesday, 17 November

Rain. High 66°, low 54°.

Pressure30.00 inHg
Wind11.4 mph S
Humidity71%
Visibility—
Dew point54°

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.