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As of 08:06 CDT

Weather in O'Fallon, MO

58°Current weather

O'Fallon, Friday, 30 October, 08:06

Overcast. Feels like 58°. High 79°, low 58°.

Pressure30.24 inHg
Wind3 mph NE
Humidity90%
Visibility6.2 mi
Dew point55°

Two-week outlook for O'Fallon, MO: week one averages a high of 69.4° and week two 66.1°, so week two runs 3.3° cooler than week one. Around 1.2 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, October 31: 74°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 30 – November 5)69.4°59.3°0.7 in / 2 d+9.6°
2nd (November 6 – November 12)66.1°50.8°0.5 in / 2 d+9.9°

Weekend weather

Sat, October 31
Overcast
74°61°
no precip.
Sun, November 1
Light rain
69°59°
0.09 in
Sat, November 7
Overcast
69°50°
no precip.
Sun, November 8
Light rain
66°52°
0.06 in
Sat, 3174° / 61°0Overcast
74 °Overcast

O'Fallon, Saturday, 31 October

Overcast. High 74°, low 61°.

Pressure30.27 inHg
Wind3.4 mph SE
Humidity67%
Visibility6.2 mi
Dew point56°
Sun, 0169° / 59°0.09Light rain
69 °Light rain

O'Fallon, Sunday, 1 November

Light rain. High 69°, low 59°.

Pressure30.27 inHg
Wind7.9 mph SE
Humidity85%
Visibility6.2 mi
Dew point60°
Mon, 0270° / 59°0Light rain
70 °Light rain

O'Fallon, Monday, 2 November

Light rain. High 70°, low 59°.

Pressure30.03 inHg
Wind13.7 mph S
Humidity75%
Visibility6.2 mi
Dew point61°
Tue, 0370° / 64°0.53Rain
70 °Rain

O'Fallon, Tuesday, 3 November

Rain. High 70°, low 64°.

Pressure29.77 inHg
Wind15.4 mph S
Humidity95%
Visibility—
Dew point65°
Wed, 0464° / 59°0.04Light rain
64 °Light rain

O'Fallon, Wednesday, 4 November

Light rain. High 64°, low 59°.

Pressure29.80 inHg
Wind11 mph NW
Humidity72%
Visibility—
Dew point52°
Thu, 0561° / 54°0Light rain
61 °Light rain

O'Fallon, Thursday, 5 November

Light rain. High 61°, low 54°.

Pressure29.71 inHg
Wind10.9 mph N
Humidity88%
Visibility—
Dew point55°
Fri, 0665° / 49°0Overcast
65 °Overcast

O'Fallon, Friday, 6 November

Overcast. High 65°, low 49°.

Pressure30.06 inHg
Wind5.9 mph NW
Humidity59%
Visibility—
Dew point47°
Sat, 0769° / 50°0Overcast
69 °Overcast

O'Fallon, Saturday, 7 November

Overcast. High 69°, low 50°.

Pressure30.21 inHg
Wind8.3 mph S
Humidity49%
Visibility—
Dew point44°
Sun, 0866° / 52°0.06Light rain
66 °Light rain

O'Fallon, Sunday, 8 November

Light rain. High 66°, low 52°.

Pressure30.24 inHg
Wind12.1 mph NW
Humidity41%
Visibility—
Dew point40°
Mon, 0967° / 47°0Clear
67 °Clear

O'Fallon, Monday, 9 November

Clear. High 67°, low 47°.

Pressure30.21 inHg
Wind4.6 mph S
Humidity47%
Visibility—
Dew point42°
Tue, 1066° / 50°0Overcast
66 °Overcast

O'Fallon, Tuesday, 10 November

Overcast. High 66°, low 50°.

Pressure29.97 inHg
Wind9.5 mph S
Humidity49%
Visibility—
Dew point43°
Wed, 1160° / 56°0.45Rain
60 °Rain

O'Fallon, Wednesday, 11 November

Rain. High 60°, low 56°.

Pressure29.56 inHg
Wind17 mph S
Humidity88%
Visibility—
Dew point55°
Thu, 1270° / 51°0Clear
70 °Clear

O'Fallon, Thursday, 12 November

Clear. High 70°, low 51°.

Pressure29.47 inHg
Wind17.9 mph SW
Humidity36%
Visibility—
Dew point39°

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.