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As of 07:17 CST

Weather in O'Fallon, MO

28°Current weather

O'Fallon, Sunday, 15 November, 07:17

Clear. Feels like 28°. High 51°, low 28°.

Pressure30.45 inHg
Wind0.8 mph N
Humidity92%
Visibility6.2 mi
Dew point27°

Two-week outlook for O'Fallon, MO: week one averages a high of 60° and week two 56.1°, so week two runs 3.9° cooler than week one. Around 0.1 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, November 15: 51°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 15 – November 21)60°39.2°0.1 in / 1 d+6.6°
2nd (November 22 – November 28)56.1°40°0.0 in / 0 d+6.4°

Weekend weather

Sun, November 15
Partly cloudy
51°28°
no precip.
Sat, November 21
Rain
62°51°
0.15 in
Sun, November 22
Mostly clear
55°41°
no precip.
Sat, November 28
Overcast
59°49°
no precip.
Mon, 1656° / 27°0Clear
56 °Clear

O'Fallon, Monday, 16 November

Clear. High 56°, low 27°.

Pressure30.53 inHg
Wind3.3 mph S
Humidity49%
Visibility6.2 mi
Dew point33°
Tue, 1757° / 32°0Clear
57 °Clear

O'Fallon, Tuesday, 17 November

Clear. High 57°, low 32°.

Pressure30.47 inHg
Wind5.1 mph S
Humidity51%
Visibility6.2 mi
Dew point37°
Wed, 1861° / 40°0Overcast
61 °Overcast

O'Fallon, Wednesday, 18 November

Overcast. High 61°, low 40°.

Pressure30.36 inHg
Wind8.8 mph S
Humidity47%
Visibility6.2 mi
Dew point39°
Thu, 1968° / 47°0Clear
68 °Clear

O'Fallon, Thursday, 19 November

Clear. High 68°, low 47°.

Pressure30.30 inHg
Wind10.1 mph S
Humidity54%
Visibility—
Dew point47°
Fri, 2065° / 50°0Overcast
65 °Overcast

O'Fallon, Friday, 20 November

Overcast. High 65°, low 50°.

Pressure30.27 inHg
Wind9 mph S
Humidity70%
Visibility—
Dew point51°
Sat, 2162° / 51°0.15Rain
62 °Rain

O'Fallon, Saturday, 21 November

Rain. High 62°, low 51°.

Pressure30.03 inHg
Wind16.6 mph S
Humidity57%
Visibility—
Dew point45°
Sun, 2255° / 41°0Mostly clear
55 °Mostly clear

O'Fallon, Sunday, 22 November

Mostly clear. High 55°, low 41°.

Pressure30.33 inHg
Wind11.7 mph NW
Humidity47%
Visibility—
Dew point33°
Mon, 2348° / 33°0Partly cloudy
48 °Partly cloudy

O'Fallon, Monday, 23 November

Partly cloudy. High 48°, low 33°.

Pressure30.47 inHg
Wind8.7 mph NE
Humidity39%
Visibility—
Dew point21°
Tue, 2450° / 33°0Overcast
50 °Overcast

O'Fallon, Tuesday, 24 November

Overcast. High 50°, low 33°.

Pressure30.47 inHg
Wind7.1 mph SE
Humidity38%
Visibility—
Dew point22°
Wed, 2558° / 34°0Mostly clear
58 °Mostly clear

O'Fallon, Wednesday, 25 November

Mostly clear. High 58°, low 34°.

Pressure30.39 inHg
Wind7.2 mph S
Humidity44%
Visibility—
Dew point30°
Thu, 2662° / 43°0Clear
62 °Clear

O'Fallon, Thursday, 26 November

Clear. High 62°, low 43°.

Pressure30.24 inHg
Wind9.8 mph S
Humidity32%
Visibility—
Dew point28°
Fri, 2760° / 46°0Overcast
60 °Overcast

O'Fallon, Friday, 27 November

Overcast. High 60°, low 46°.

Pressure30.27 inHg
Wind5.6 mph E
Humidity44%
Visibility—
Dew point35°
Sat, 2859° / 49°0Overcast
59 °Overcast

O'Fallon, Saturday, 28 November

Overcast. High 59°, low 49°.

Pressure30.36 inHg
Wind5.3 mph E
Humidity29%
Visibility—
Dew point25°

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.