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As of 23:02 CST

Weather in O'Fallon, MO

51°Current weather

O'Fallon, Tuesday, 10 November, 23:02

Clear. Feels like 50°. High 72°, low 45°.

Pressure30.03 inHg
Wind2 mph E
Humidity86%
Visibility6.2 mi
Dew point47°

Two-week outlook for O'Fallon, MO: week one averages a high of 55.3° and week two 50.4°, so week two runs 4.9° cooler than week one. Around 0.7 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, November 14: 46°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 10 – November 16)55.3°36.8°0.0 in / 0 d+1.2°
2nd (November 17 – November 23)50.4°37.1°0.7 in / 4 d-2.3°

Weekend weather

Sat, November 14
Clear
46°28°
no precip.
Sun, November 15
Overcast
50°32°
no precip.
Sat, November 21
Light rain
54°40°
0.09 in
Sun, November 22
Snow
39°27°
0.18 in
Wed, 1170° / 46°0Clear
70 °Clear

O'Fallon, Wednesday, 11 November

Clear. High 70°, low 46°.

Pressure29.80 inHg
Wind12.8 mph W
Humidity56%
Visibility6.2 mi
Dew point49°
Thu, 1253° / 40°0Overcast
53 °Overcast

O'Fallon, Thursday, 12 November

Overcast. High 53°, low 40°.

Pressure30.03 inHg
Wind13.6 mph NW
Humidity55%
Visibility6.2 mi
Dew point31°
Fri, 1344° / 33°0Overcast
44 °Overcast

O'Fallon, Friday, 13 November

Overcast. High 44°, low 33°.

Pressure30.15 inHg
Wind11.4 mph N
Humidity61%
Visibility6.2 mi
Dew point24°
Sat, 1446° / 28°0Clear
46 °Clear

O'Fallon, Saturday, 14 November

Clear. High 46°, low 28°.

Pressure30.27 inHg
Wind1.5 mph NW
Humidity57%
Visibility6.2 mi
Dew point26°
Sun, 1550° / 32°0Overcast
50 °Overcast

O'Fallon, Sunday, 15 November

Overcast. High 50°, low 32°.

Pressure30.39 inHg
Wind5 mph SE
Humidity51%
Visibility—
Dew point29°
Mon, 1652° / 33°0Mostly clear
52 °Mostly clear

O'Fallon, Monday, 16 November

Mostly clear. High 52°, low 33°.

Pressure30.45 inHg
Wind5.4 mph SE
Humidity49%
Visibility—
Dew point30°
Tue, 1754° / 36°0Clear
54 °Clear

O'Fallon, Tuesday, 17 November

Clear. High 54°, low 36°.

Pressure30.36 inHg
Wind5.9 mph SE
Humidity38%
Visibility—
Dew point25°
Wed, 1857° / 37°0Clear
57 °Clear

O'Fallon, Wednesday, 18 November

Clear. High 57°, low 37°.

Pressure30.24 inHg
Wind11.2 mph SE
Humidity36%
Visibility—
Dew point26°
Thu, 1962° / 48°0.05Light rain
62 °Light rain

O'Fallon, Thursday, 19 November

Light rain. High 62°, low 48°.

Pressure30.03 inHg
Wind11.3 mph S
Humidity53%
Visibility—
Dew point41°
Fri, 2057° / 52°0.39Light rain
57 °Light rain

O'Fallon, Friday, 20 November

Light rain. High 57°, low 52°.

Pressure29.91 inHg
Wind12.8 mph S
Humidity66%
Visibility—
Dew point45°
Sat, 2154° / 40°0.09Light rain
54 °Light rain

O'Fallon, Saturday, 21 November

Light rain. High 54°, low 40°.

Pressure29.68 inHg
Wind14.1 mph SW
Humidity82%
Visibility—
Dew point45°
Sun, 2239° / 27°0.18Snow
39 °Snow

O'Fallon, Sunday, 22 November

Snow. High 39°, low 27°.

Pressure30.15 inHg
Wind16.2 mph NW
Humidity62%
Visibility—
Dew point25°
Mon, 2329° / 20°0Overcast
29 °Overcast

O'Fallon, Monday, 23 November

Overcast. High 29°, low 20°.

Pressure30.36 inHg
Wind20.1 mph NW
Humidity47%
Visibility—
Dew point7°

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.