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As of 20:58 CST

Weather in O'Fallon, MO

45°Current weather

O'Fallon, Friday, 6 November, 20:58

Overcast. Feels like 41°. High 51°, low 44°.

Pressure30.27 inHg
Wind6.9 mph N
Humidity74%
Visibility6.2 mi
Dew point37°

Two-week outlook for O'Fallon, MO: week one averages a high of 60.1° and week two 56.2°, so week two runs 4° cooler than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, November 7: 54°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 6 – November 12)60.1°42.1°0.0 in / 0 d+3.9°
2nd (November 13 – November 19)56.2°39.4°0.0 in / 1 d+2.2°

Weekend weather

Sat, November 7
Overcast
54°36°
no precip.
Sun, November 8
Clear
64°38°
no precip.
Sat, November 14
Clear
45°26°
no precip.
Sun, November 15
Partly cloudy
54°30°
no precip.
Sat, 0754° / 36°0Overcast
54 °Overcast

O'Fallon, Saturday, 7 November

Overcast. High 54°, low 36°.

Pressure30.27 inHg
Wind3.9 mph NW
Humidity57%
Visibility6.2 mi
Dew point36°
Sun, 0864° / 38°0Clear
64 °Clear

O'Fallon, Sunday, 8 November

Clear. High 64°, low 38°.

Pressure30.12 inHg
Wind6.5 mph W
Humidity59%
Visibility6.2 mi
Dew point46°
Mon, 0966° / 41°0Clear
66 °Clear

O'Fallon, Monday, 9 November

Clear. High 66°, low 41°.

Pressure30.18 inHg
Wind3.9 mph SW
Humidity59%
Visibility6.2 mi
Dew point49°
Tue, 1067° / 47°0Clear
67 °Clear

O'Fallon, Tuesday, 10 November

Clear. High 67°, low 47°.

Pressure30.09 inHg
Wind4.1 mph W
Humidity61%
Visibility6.2 mi
Dew point51°
Wed, 1166° / 47°0Overcast
66 °Overcast

O'Fallon, Wednesday, 11 November

Overcast. High 66°, low 47°.

Pressure29.85 inHg
Wind11 mph W
Humidity69%
Visibility—
Dew point53°
Thu, 1253° / 42°0Overcast
53 °Overcast

O'Fallon, Thursday, 12 November

Overcast. High 53°, low 42°.

Pressure29.91 inHg
Wind17.2 mph NW
Humidity63%
Visibility—
Dew point37°
Fri, 1342° / 31°0Clear
42 °Clear

O'Fallon, Friday, 13 November

Clear. High 42°, low 31°.

Pressure30.15 inHg
Wind14.3 mph N
Humidity36%
Visibility—
Dew point16°
Sat, 1445° / 26°0Clear
45 °Clear

O'Fallon, Saturday, 14 November

Clear. High 45°, low 26°.

Pressure30.24 inHg
Wind7 mph NW
Humidity33%
Visibility—
Dew point13°
Sun, 1554° / 30°0Partly cloudy
54 °Partly cloudy

O'Fallon, Sunday, 15 November

Partly cloudy. High 54°, low 30°.

Pressure30.33 inHg
Wind7.2 mph S
Humidity28%
Visibility—
Dew point16°
Mon, 1666° / 40°0Mostly clear
66 °Mostly clear

O'Fallon, Monday, 16 November

Mostly clear. High 66°, low 40°.

Pressure30.30 inHg
Wind9.4 mph SW
Humidity37%
Visibility—
Dew point33°
Tue, 1766° / 52°0Overcast
66 °Overcast

O'Fallon, Tuesday, 17 November

Overcast. High 66°, low 52°.

Pressure30.30 inHg
Wind7.2 mph SW
Humidity47%
Visibility—
Dew point42°
Wed, 1860° / 47°0Light rain
60 °Light rain

O'Fallon, Wednesday, 18 November

Light rain. High 60°, low 47°.

Pressure30.36 inHg
Wind9.4 mph S
Humidity49%
Visibility—
Dew point39°
Thu, 1960° / 51°0.04Light rain
60 °Light rain

O'Fallon, Thursday, 19 November

Light rain. High 60°, low 51°.

Pressure30.27 inHg
Wind12.1 mph S
Humidity56%
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.