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As of 23:57 CST

Weather in O'Fallon, MO

32°Current weather

O'Fallon, Friday, 13 November, 23:57

Clear. Feels like 32°. High 43°, low 32°.

Pressure30.21 inHg
Wind1 mph N
Humidity80%
Visibility6.2 mi
Dew point27°

Two-week outlook for O'Fallon, MO: week one averages a high of 53.7° and week two 48°, so week two runs 5.6° cooler than week one. Around 0.4 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, November 14: 47°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 13 – November 19)53.7°35.4°0.3 in / 1 d-0.3°
2nd (November 20 – November 26)48°32°0.1 in / 1 d-2.9°

Weekend weather

Sat, November 14
Partly cloudy
47°29°
no precip.
Sun, November 15
Partly cloudy
50°31°
no precip.
Sat, November 21
Light rain
71°49°
0.09 in
Sun, November 22
Overcast
39°28°
no precip.
Sat, 1447° / 29°0Partly cloudy
47 °Partly cloudy

O'Fallon, Saturday, 14 November

Partly cloudy. High 47°, low 29°.

Pressure30.33 inHg
Wind2.3 mph N
Humidity58%
Visibility6.2 mi
Dew point27°
Sun, 1550° / 31°0Partly cloudy
50 °Partly cloudy

O'Fallon, Sunday, 15 November

Partly cloudy. High 50°, low 31°.

Pressure30.47 inHg
Wind3.2 mph SE
Humidity52%
Visibility6.2 mi
Dew point32°
Mon, 1654° / 32°0Clear
54 °Clear

O'Fallon, Monday, 16 November

Clear. High 54°, low 32°.

Pressure30.50 inHg
Wind3 mph S
Humidity50%
Visibility6.2 mi
Dew point34°
Tue, 1755° / 34°0Clear
55 °Clear

O'Fallon, Tuesday, 17 November

Clear. High 55°, low 34°.

Pressure30.47 inHg
Wind5.6 mph S
Humidity54%
Visibility6.2 mi
Dew point38°
Wed, 1861° / 38°0Overcast
61 °Overcast

O'Fallon, Wednesday, 18 November

Overcast. High 61°, low 38°.

Pressure30.30 inHg
Wind10.2 mph SE
Humidity49%
Visibility—
Dew point37°
Thu, 1965° / 50°0.34Rain
65 °Rain

O'Fallon, Thursday, 19 November

Rain. High 65°, low 50°.

Pressure30.30 inHg
Wind7.8 mph S
Humidity57%
Visibility—
Dew point48°
Fri, 2069° / 56°0Partly cloudy
69 °Partly cloudy

O'Fallon, Friday, 20 November

Partly cloudy. High 69°, low 56°.

Pressure30.21 inHg
Wind9.6 mph S
Humidity62%
Visibility—
Dew point53°
Sat, 2171° / 49°0.09Light rain
71 °Light rain

O'Fallon, Saturday, 21 November

Light rain. High 71°, low 49°.

Pressure29.94 inHg
Wind18.2 mph W
Humidity44%
Visibility—
Dew point44°
Sun, 2239° / 28°0Overcast
39 °Overcast

O'Fallon, Sunday, 22 November

Overcast. High 39°, low 28°.

Pressure30.15 inHg
Wind21.4 mph NW
Humidity57%
Visibility—
Dew point21°
Mon, 2331° / 21°0Partly cloudy
31 °Partly cloudy

O'Fallon, Monday, 23 November

Partly cloudy. High 31°, low 21°.

Pressure30.27 inHg
Wind15.7 mph NW
Humidity41%
Visibility—
Dew point8°
Tue, 2432° / 16°0Clear
32 °Clear

O'Fallon, Tuesday, 24 November

Clear. High 32°, low 16°.

Pressure30.42 inHg
Wind10 mph NW
Humidity29%
Visibility—
Dew point0°
Wed, 2546° / 21°0Overcast
46 °Overcast

O'Fallon, Wednesday, 25 November

Overcast. High 46°, low 21°.

Pressure30.18 inHg
Wind14.5 mph SW
Humidity23%
Visibility—
Dew point5°
Thu, 2649° / 33°0Overcast
49 °Overcast

O'Fallon, Thursday, 26 November

Overcast. High 49°, low 33°.

Pressure30.21 inHg
Wind10.8 mph SW
Humidity51%
Visibility—
Dew point27°

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.