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As of 16:56 CDT

Weather in O'Fallon, MO

74°Current weather

O'Fallon, Saturday, 24 October, 16:56

Clear. Feels like 74°. High 75°, low 48°.

Pressure30.30 inHg
Wind5.7 mph E
Humidity42%
Visibility6.2 mi
Dew point50°

Two-week outlook for O'Fallon, MO: week one averages a high of 75.6° and week two 63.2°, so week two runs 12.4° cooler than week one. Around 0.2 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, October 24: 75°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 24 – October 30)75.6°53.1°0.0 in / 0 d+13.6°
2nd (October 31 – November 6)63.2°52.2°0.2 in / 3 d+4.2°

Weekend weather

Sat, October 24
Overcast
75°48°
no precip.
Sun, October 25
Overcast
77°49°
no precip.
Sat, October 31
Light rain
70°64°
0.04 in
Sun, November 1
Light rain
78°56°
0.07 in
Sun, 2577° / 49°0Overcast
77 °Overcast

O'Fallon, Sunday, 25 October

Overcast. High 77°, low 49°.

Pressure30.39 inHg
Wind2.3 mph S
Humidity56%
Visibility6.2 mi
Dew point53°
Mon, 2673° / 52°0Overcast
73 °Overcast

O'Fallon, Monday, 26 October

Overcast. High 73°, low 52°.

Pressure30.33 inHg
Wind3.6 mph SW
Humidity53%
Visibility6.2 mi
Dew point53°
Tue, 2772° / 54°0Overcast
72 °Overcast

O'Fallon, Tuesday, 27 October

Overcast. High 72°, low 54°.

Pressure30.21 inHg
Wind6.1 mph S
Humidity56%
Visibility6.2 mi
Dew point52°
Wed, 2877° / 54°0.01Light rain
77 °Light rain

O'Fallon, Wednesday, 28 October

Light rain. High 77°, low 54°.

Pressure30.18 inHg
Wind6.8 mph S
Humidity54%
Visibility6.2 mi
Dew point54°
Thu, 2978° / 58°0Overcast
78 °Overcast

O'Fallon, Thursday, 29 October

Overcast. High 78°, low 58°.

Pressure30.18 inHg
Wind7.5 mph S
Humidity50%
Visibility—
Dew point54°
Fri, 3078° / 57°0Overcast
78 °Overcast

O'Fallon, Friday, 30 October

Overcast. High 78°, low 57°.

Pressure30.15 inHg
Wind9.8 mph S
Humidity35%
Visibility—
Dew point44°
Sat, 3170° / 64°0.04Light rain
70 °Light rain

O'Fallon, Saturday, 31 October

Light rain. High 70°, low 64°.

Pressure30.00 inHg
Wind15.5 mph S
Humidity43%
Visibility—
Dew point45°
Sun, 0178° / 56°0.07Light rain
78 °Light rain

O'Fallon, Sunday, 1 November

Light rain. High 78°, low 56°.

Pressure29.74 inHg
Wind19.6 mph NW
Humidity56%
Visibility—
Dew point57°
Mon, 0250° / 44°0.11Light rain
50 °Light rain

O'Fallon, Monday, 2 November

Light rain. High 50°, low 44°.

Pressure29.77 inHg
Wind24.7 mph NW
Humidity56%
Visibility—
Dew point34°
Tue, 0355° / 51°0Light rain
55 °Light rain

O'Fallon, Tuesday, 3 November

Light rain. High 55°, low 51°.

Pressure29.71 inHg
Wind18.8 mph NW
Humidity81%
Visibility—
Dew point47°
Wed, 0462° / 52°0Overcast
62 °Overcast

O'Fallon, Wednesday, 4 November

Overcast. High 62°, low 52°.

Pressure29.74 inHg
Wind12.6 mph NW
Humidity55%
Visibility—
Dew point42°
Thu, 0563° / 46°0Overcast
63 °Overcast

O'Fallon, Thursday, 5 November

Overcast. High 63°, low 46°.

Pressure30.00 inHg
Wind3.2 mph NE
Humidity50%
Visibility—
Dew point41°
Fri, 0665° / 52°0Partly cloudy
65 °Partly cloudy

O'Fallon, Friday, 6 November

Partly cloudy. High 65°, low 52°.

Pressure30.18 inHg
Wind6.5 mph N
Humidity49%
Visibility—
Dew point43°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in O'Fallon, MO, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.