As of 04:24 CDT

Weather in Cornwall, MO

52°

Cornwall, Wednesday, 7 October, 04:24

Clear. Feels like 51°. High 87°, low 52°.

Pressure29.97 inHg

Wind5 mph W

Humidity85%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Thu, 0884° / 53°

84 °

Cornwall, Thursday, 8 October

Clear. High 84°, low 53°.

Pressure30.12 inHg

Wind6.6 mph E

Humidity25%

Visibility6.2 mi

Dew point40°

Fri, 0985° / 59°

85 °

Cornwall, Friday, 9 October

Clear. High 85°, low 59°.

Pressure30.15 inHg

Wind8.2 mph S

Humidity25%

Visibility6.2 mi

Dew point42°

Sat, 1079° / 60°

0.35

79 °

Cornwall, Saturday, 10 October

Rain. High 79°, low 60°.

Pressure30.09 inHg

Wind5.9 mph SE

Humidity48%

Visibility6.2 mi

Dew point56°

Sun, 1173° / 59°

0.48

73 °

Cornwall, Sunday, 11 October

Rain. High 73°, low 59°.

Pressure29.85 inHg

Wind15.8 mph NE

Humidity79%

Visibility—

Dew point60°

Mon, 1286° / 60°

86 °

Cornwall, Monday, 12 October

Clear. High 86°, low 60°.

Pressure29.88 inHg

Wind10 mph SW

Humidity49%

Visibility—

Dew point60°

Tue, 1385° / 65°

85 °

Cornwall, Tuesday, 13 October

Partly cloudy. High 85°, low 65°.

Pressure29.91 inHg

Wind10.4 mph N

Humidity37%

Visibility—

Dew point54°

Wed, 1479° / 54°

79 °

Cornwall, Wednesday, 14 October

Clear. High 79°, low 54°.

Pressure30.00 inHg

Wind9.2 mph SE

Humidity44%

Visibility—

Dew point49°

Thu, 1590° / 65°

0.61

90 °

Cornwall, Thursday, 15 October

Heavy rain. High 90°, low 65°.

Pressure29.83 inHg

Wind16.6 mph S

Humidity42%

Visibility—

Dew point61°

Fri, 1662° / 50°

0.21

62 °

Cornwall, Friday, 16 October

Rain. High 62°, low 50°.

Pressure30.12 inHg

Wind12.9 mph N

Humidity35%

Visibility—

Dew point32°

Sat, 1753° / 39°

53 °

Cornwall, Saturday, 17 October

Clear. High 53°, low 39°.

Pressure30.27 inHg

Wind12.5 mph N

Humidity39%

Visibility—

Dew point27°

Sun, 1857° / 33°

57 °

Cornwall, Sunday, 18 October

Mostly clear. High 57°, low 33°.

Pressure30.33 inHg

Wind5 mph NW

Humidity31%

Visibility—

Dew point23°

Mon, 1962° / 37°

62 °

Cornwall, Monday, 19 October

Overcast. High 62°, low 37°.

Pressure30.27 inHg

Wind7.1 mph S

Humidity28%

Visibility—

Dew point24°

Tue, 2065° / 42°

65 °

Cornwall, Tuesday, 20 October

Overcast. High 65°, low 42°.

Pressure30.42 inHg

Wind5.8 mph E

Humidity25%

Visibility—

Dew point25°

Wed, 2168° / 43°

68 °

Cornwall, Wednesday, 21 October

Light rain. High 68°, low 43°.

Pressure30.30 inHg

Wind12.3 mph N

Humidity28%

Visibility—

Dew point31°

Thu, 2259° / 44°

0.04

59 °

Cornwall, Thursday, 22 October

Light rain. High 59°, low 44°.

Pressure30.21 inHg

Wind10.4 mph NW

Humidity59%

Visibility—

Dew point41°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Cornwall, MO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Cornwall, MO since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.