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As of 21:32 CST

Weather in O'Fallon, MO

54°Current weather

O'Fallon, Wednesday, 11 November, 21:32

Clear. Feels like 52°. High 69°, low 46°.

Pressure29.91 inHg
Wind7 mph N
Humidity77%
Visibility6.2 mi
Dew point46°

Two-week outlook for O'Fallon, MO: week one averages a high of 53.6° and week two 58.9°, so week two runs 5.4° warmer than week one. Around 1.7 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, November 14: 46°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 11 – November 17)53.6°35.2°0.0 in / 0 d-0.3°
2nd (November 18 – November 24)58.9°42.5°1.7 in / 2 d+6.9°

Weekend weather

Sat, November 14
Clear
46°30°
no precip.
Sun, November 15
Overcast
49°32°
no precip.
Sat, November 21
Partly cloudy
60°45°
no precip.
Sun, November 22
Light rain
69°52°
0.01 in
Thu, 1253° / 37°0Overcast
53 °Overcast

O'Fallon, Thursday, 12 November

Overcast. High 53°, low 37°.

Pressure30.00 inHg
Wind13.5 mph NW
Humidity52%
Visibility6.2 mi
Dew point31°
Fri, 1347° / 35°0Overcast
47 °Overcast

O'Fallon, Friday, 13 November

Overcast. High 47°, low 35°.

Pressure30.12 inHg
Wind10.8 mph N
Humidity63%
Visibility6.2 mi
Dew point25°
Sat, 1446° / 30°0Clear
46 °Clear

O'Fallon, Saturday, 14 November

Clear. High 46°, low 30°.

Pressure30.36 inHg
Wind2.9 mph N
Humidity57%
Visibility6.2 mi
Dew point25°
Sun, 1549° / 32°0Overcast
49 °Overcast

O'Fallon, Sunday, 15 November

Overcast. High 49°, low 32°.

Pressure30.45 inHg
Wind1.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point29°
Mon, 1654° / 32°0Clear
54 °Clear

O'Fallon, Monday, 16 November

Clear. High 54°, low 32°.

Pressure30.47 inHg
Wind6.4 mph SE
Humidity45%
Visibility—
Dew point29°
Tue, 1757° / 35°0Partly cloudy
57 °Partly cloudy

O'Fallon, Tuesday, 17 November

Partly cloudy. High 57°, low 35°.

Pressure30.42 inHg
Wind6.7 mph SE
Humidity46%
Visibility—
Dew point32°
Wed, 1861° / 37°0Clear
61 °Clear

O'Fallon, Wednesday, 18 November

Clear. High 61°, low 37°.

Pressure30.33 inHg
Wind9.1 mph S
Humidity34%
Visibility—
Dew point27°
Thu, 1963° / 40°0Overcast
63 °Overcast

O'Fallon, Thursday, 19 November

Overcast. High 63°, low 40°.

Pressure30.21 inHg
Wind10.3 mph S
Humidity35%
Visibility—
Dew point29°
Fri, 2066° / 47°0Overcast
66 °Overcast

O'Fallon, Friday, 20 November

Overcast. High 66°, low 47°.

Pressure30.12 inHg
Wind10 mph W
Humidity52%
Visibility—
Dew point45°
Sat, 2160° / 45°0Partly cloudy
60 °Partly cloudy

O'Fallon, Saturday, 21 November

Partly cloudy. High 60°, low 45°.

Pressure30.15 inHg
Wind7.4 mph SE
Humidity57%
Visibility—
Dew point42°
Sun, 2269° / 52°0.01Light rain
69 °Light rain

O'Fallon, Sunday, 22 November

Light rain. High 69°, low 52°.

Pressure29.77 inHg
Wind15.5 mph SW
Humidity35%
Visibility—
Dew point37°
Mon, 2351° / 43°0.1Light rain
51 °Light rain

O'Fallon, Monday, 23 November

Light rain. High 51°, low 43°.

Pressure30.00 inHg
Wind9 mph NW
Humidity63%
Visibility—
Dew point34°
Tue, 2443° / 33°1.6Snow
43 °Snow

O'Fallon, Tuesday, 24 November

Snow. High 43°, low 33°.

Pressure29.85 inHg
Wind19.1 mph N
Humidity98%
Visibility—
Dew point34°

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.