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As of 01:34 CDT

Weather in O'Fallon, MO

62°Current weather

O'Fallon, Friday, 30 October, 01:34

Clear. Feels like 62°. High 78°, low 59°.

Pressure30.21 inHg
Wind2 mph E
Humidity87%
Visibility6.2 mi
Dew point58°

10-day forecast for O'Fallon, MO: 47° to 78°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

78°
Best day: Friday, October 30
69° · 0.85 in
Worst day: Tuesday, November 3

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

Sat, 3172° / 60°0Overcast
MorningOvercast62°feels 62°
AfternoonOvercast68°feels 68°
EveningOvercast63°feels 62°
OvernightOvercast66°feels 66°
72 °Overcast

O'Fallon, Saturday, 31 October

Overcast. High 72°, low 60°.

Pressure30.27 inHg
Wind1.7 mph SE
Humidity73%
Visibility6.2 mi
Dew point59°
Sun, 0169° / 58°0.02Light rain
MorningOvercast59°feels 59°
AfternoonPartly cloudy69°feels 69°
EveningOvercast64°feels 63°
OvernightOvercast59°feels 59°
69 °Light rain

O'Fallon, Sunday, 1 November

Light rain. High 69°, low 58°.

Pressure30.27 inHg
Wind7 mph SE
Humidity67%
Visibility6.2 mi
Dew point58°
Mon, 0271° / 59°0.01Light rain
MorningOvercast60°feels 60°
AfternoonOvercast68°feels 68°
EveningOvercast66°feels 66°
OvernightOvercast58°feels 58°
71 °Light rain

O'Fallon, Monday, 2 November

Light rain. High 71°, low 59°.

Pressure30.06 inHg
Wind10 mph SE
Humidity81%
Visibility6.2 mi
Dew point59°
Tue, 0369° / 65°0.85Rain
MorningRain66°feels 66°
AfternoonRain67°feels 67°
EveningRain65°feels 66°
OvernightRain65°feels 66°
69 °Rain

O'Fallon, Tuesday, 3 November

Rain. High 69°, low 65°.

Pressure29.88 inHg
Wind13.7 mph S
Humidity92%
Visibility—
Dew point64°
Wed, 0464° / 56°0.78Rain
MorningRain57°feels 56°
AfternoonRain59°feels 58°
EveningRain60°feels 60°
OvernightRain60°feels 60°
64 °Rain

O'Fallon, Wednesday, 4 November

Rain. High 64°, low 56°.

Pressure29.77 inHg
Wind14 mph NW
Humidity70%
Visibility—
Dew point49°
Thu, 0561° / 57°0.06Light rain
MorningLight rain60°feels 60°
AfternoonLight rain60°feels 59°
EveningLight rain57°feels 55°
OvernightLight rain58°feels 57°
61 °Light rain

O'Fallon, Thursday, 5 November

Light rain. High 61°, low 57°.

Pressure29.71 inHg
Wind11.4 mph N
Humidity83%
Visibility—
Dew point55°
Fri, 0665° / 47°0Partly cloudy
MorningPartly cloudy52°feels 50°
AfternoonPartly cloudy62°feels 61°
EveningPartly cloudy56°feels 54°
OvernightPartly cloudy52°feels 50°
65 °Partly cloudy

O'Fallon, Friday, 6 November

Partly cloudy. High 65°, low 47°.

Pressure29.85 inHg
Wind7 mph N
Humidity50%
Visibility—
Dew point42°
Sat, 0765° / 47°0Partly cloudy
MorningPartly cloudy52°feels 49°
AfternoonPartly cloudy62°feels 60°
EveningPartly cloudy56°feels 54°
OvernightPartly cloudy53°feels 51°
65 °Partly cloudy

O'Fallon, Saturday, 7 November

Partly cloudy. High 65°, low 47°.

Pressure30.09 inHg
Wind8 mph E
Humidity47%
Visibility—
Dew point40°
Sun, 0856° / 52°0.09Light rain
MorningLight rain54°feels 52°
AfternoonLight rain56°feels 55°
EveningLight rain54°feels 53°
OvernightLight rain53°feels 53°
56 °Light rain

O'Fallon, Sunday, 8 November

Light rain. High 56°, low 52°.

Pressure29.91 inHg
Wind12.8 mph SE
Humidity62%
Visibility—
Dew point43°

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.