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As of 13:31 CDT

Weather in O'Fallon, MO

77°Current weather

O'Fallon, Wednesday, 28 October, 13:31

Clear. Feels like 77°. High 77°, low 52°.

Pressure30.15 inHg
Wind6 mph S
Humidity47%
Visibility6.2 mi
Dew point55°

Two-week outlook for O'Fallon, MO: week one averages a high of 72.5° and week two 58.5°, so week two runs 14° cooler than week one. Around 2.5 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, October 31: 67°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 28 – November 3)72.5°57.1°0.1 in / 1 d+11.6°
2nd (November 4 – November 10)58.5°49.6°2.4 in / 4 d+1.1°

Weekend weather

Sat, October 31
Overcast
67°60°
no precip.
Sun, November 1
Clear
71°58°
no precip.
Sat, November 7
Overcast
56°44°
no precip.
Sun, November 8
Overcast
56°43°
no precip.
Thu, 2979° / 54°0Clear
79 °Clear

O'Fallon, Thursday, 29 October

Clear. High 79°, low 54°.

Pressure30.15 inHg
Wind6.1 mph SW
Humidity58%
Visibility6.2 mi
Dew point58°
Fri, 3076° / 56°0Overcast
76 °Overcast

O'Fallon, Friday, 30 October

Overcast. High 76°, low 56°.

Pressure30.21 inHg
Wind5.5 mph SE
Humidity69%
Visibility6.2 mi
Dew point61°
Sat, 3167° / 60°0Overcast
67 °Overcast

O'Fallon, Saturday, 31 October

Overcast. High 67°, low 60°.

Pressure30.24 inHg
Wind2.7 mph SE
Humidity73%
Visibility6.2 mi
Dew point58°
Sun, 0171° / 58°0Clear
71 °Clear

O'Fallon, Sunday, 1 November

Clear. High 71°, low 58°.

Pressure30.21 inHg
Wind6 mph E
Humidity68%
Visibility6.2 mi
Dew point58°
Mon, 0268° / 58°0.02Light rain
68 °Light rain

O'Fallon, Monday, 2 November

Light rain. High 68°, low 58°.

Pressure30.06 inHg
Wind11.4 mph SE
Humidity69%
Visibility—
Dew point56°
Tue, 0368° / 63°0.13Light rain
68 °Light rain

O'Fallon, Tuesday, 3 November

Light rain. High 68°, low 63°.

Pressure29.77 inHg
Wind11 mph SE
Humidity81%
Visibility—
Dew point61°
Wed, 0468° / 60°0.8Heavy rain
68 °Heavy rain

O'Fallon, Wednesday, 4 November

Heavy rain. High 68°, low 60°.

Pressure29.62 inHg
Wind18.3 mph SE
Humidity72%
Visibility—
Dew point58°
Thu, 0561° / 56°0.22Light rain
61 °Light rain

O'Fallon, Thursday, 5 November

Light rain. High 61°, low 56°.

Pressure29.65 inHg
Wind14.4 mph NW
Humidity91%
Visibility—
Dew point57°
Fri, 0660° / 48°0Overcast
60 °Overcast

O'Fallon, Friday, 6 November

Overcast. High 60°, low 48°.

Pressure29.97 inHg
Wind11.7 mph N
Humidity54%
Visibility—
Dew point41°
Sat, 0756° / 44°0Overcast
56 °Overcast

O'Fallon, Saturday, 7 November

Overcast. High 56°, low 44°.

Pressure30.24 inHg
Wind6.3 mph NE
Humidity43%
Visibility—
Dew point32°
Sun, 0856° / 43°0Overcast
56 °Overcast

O'Fallon, Sunday, 8 November

Overcast. High 56°, low 43°.

Pressure30.33 inHg
Wind9.4 mph SE
Humidity45%
Visibility—
Dew point32°
Mon, 0953° / 44°0.67Rain
53 °Rain

O'Fallon, Monday, 9 November

Rain. High 53°, low 44°.

Pressure30.06 inHg
Wind14 mph SE
Humidity57%
Visibility—
Dew point36°
Tue, 1055° / 52°0.71Rain
55 °Rain

O'Fallon, Tuesday, 10 November

Rain. High 55°, low 52°.

Pressure29.71 inHg
Wind16.1 mph SE
Humidity80%
Visibility—
Dew point49°

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.