As of 12:45 CDT

Weather in Mount Vernon, MO

72°Current weather

Mount Vernon, Wednesday, 21 October, 12:45

Clear. Feels like 71°. High 72°, low 50°.

Pressure30.27 inHg
Wind9 mph SW
Humidity41%
Visibility6.2 mi
Dew point47°

Monthly outlook for Mount Vernon, MO: average high 67.6°, average low 51.8°. That is 2.5° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 22 October (76.1°), the coolest 5 November (39.2°).

67.6°/51.8°
Average high / low
+2.5°
Above normal
5 / 5
Wet days / normal
2.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October72.2°64.5°+4.3°
31 October – 9 November59.8°60°-0.1°
10 November – 19 Novemberat normal56.2°—

October records over 66 years

89.6°3 October 2006All-time high
25.2°31 October 1993All-time low

Climate normals and records are computed from the nearest reference point — Miller (8 mi).

Thu, 2276° / 51°0Clear
76 °Clear

Mount Vernon, Thursday, 22 October

Clear. High 76°, low 51°.

Pressure30.27 inHg
Wind4.5 mph E
Humidity46%
Visibility6.2 mi
Dew point50°
Fri, 2374° / 51°0Overcast
74 °Overcast

Mount Vernon, Friday, 23 October

Overcast. High 74°, low 51°.

Pressure30.24 inHg
Wind9.8 mph S
Humidity49%
Visibility6.2 mi
Dew point50°
Sat, 2475° / 56°0Mostly clear
75 °Mostly clear

Mount Vernon, Saturday, 24 October

Mostly clear. High 75°, low 56°.

Pressure30.27 inHg
Wind8.5 mph S
Humidity49%
Visibility6.2 mi
Dew point51°
Sun, 2576° / 57°0Overcast
76 °Overcast

Mount Vernon, Sunday, 25 October

Overcast. High 76°, low 57°.

Pressure30.33 inHg
Wind6.9 mph S
Humidity47%
Visibility6.2 mi
Dew point50°
Mon, 2673° / 57°0Overcast
73 °Overcast

Mount Vernon, Monday, 26 October

Overcast. High 73°, low 57°.

Pressure30.21 inHg
Wind9.8 mph SW
Humidity40%
Visibility—
Dew point44°
Tue, 2763° / 54°0Light rain
63 °Light rain

Mount Vernon, Tuesday, 27 October

Light rain. High 63°, low 54°.

Pressure30.24 inHg
Wind7.6 mph W
Humidity56%
Visibility—
Dew point47°
Wed, 2876° / 53°0Partly cloudy
76 °Partly cloudy

Mount Vernon, Wednesday, 28 October

Partly cloudy. High 76°, low 53°.

Pressure30.12 inHg
Wind14.5 mph SW
Humidity49%
Visibility—
Dew point49°
Thu, 2966° / 59°0.12Light rain
66 °Light rain

Mount Vernon, Thursday, 29 October

Light rain. High 66°, low 59°.

Pressure30.15 inHg
Wind11.4 mph S
Humidity74%
Visibility—
Dew point56°
Fri, 3071° / 57°0.12Light rain
71 °Light rain

Mount Vernon, Friday, 30 October

Light rain. High 71°, low 57°.

Pressure30.06 inHg
Wind12 mph SE
Humidity63%
Visibility—
Dew point54°
Sat, 3169° / 61°0.74Heavy rain
69 °Heavy rain

Mount Vernon, Saturday, 31 October

Heavy rain. High 69°, low 61°.

Pressure29.85 inHg
Wind21.5 mph S
Humidity71%
Visibility—
Dew point56°
Sun, 0168° / 54°0.96Heavy rain
68 °Heavy rain

Mount Vernon, Sunday, 1 November

Heavy rain. High 68°, low 54°.

Pressure29.77 inHg
Wind21 mph S
Humidity82%
Visibility—
Dew point61°
Mon, 0257° / 44°0.01Light rain
57 °Light rain

Mount Vernon, Monday, 2 November

Light rain. High 57°, low 44°.

Pressure30.00 inHg
Wind19.4 mph NW
Humidity62%
Visibility—
Dew point41°
Tue, 0350° / 45°0.06Light rain
50 °Light rain

Mount Vernon, Tuesday, 3 November

Light rain. High 50°, low 45°.

Pressure29.88 inHg
Wind18.9 mph NW
Humidity82%
Visibility—
Dew point43°
Wed, 0454° / 42°0Overcast
54 °Overcast

Mount Vernon, Wednesday, 4 November

Overcast. High 54°, low 42°.

Pressure29.68 inHg
Wind19 mph NW
Humidity62%
Visibility—
Dew point40°
Thu, 0561° / 39°0Overcast
61 °Overcast

Mount Vernon, Thursday, 5 November

Overcast. High 61°, low 39°.

Pressure29.74 inHg
Wind16.2 mph W
Humidity40%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0659° / 42°0.1Climate normal
59 °Climate normal

Mount Vernon, Friday, 6 November

Climate normal for this date — 60-year average.

Average high59°
Average low42°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (1999)
Record low26° (1993)
Sat, 0759° / 43°0.06Climate normal
59 °Climate normal

Mount Vernon, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (2023)
Record low24° (1991)
Sun, 0860° / 44°0.09Climate normal
60 °Climate normal

Mount Vernon, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation17%
Record high79° (1980)
Record low17° (1991)
Mon, 0960° / 44°0.09Climate normal
60 °Climate normal

Mount Vernon, Monday, 9 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.09 in
Chance of precipitation28%
Record high78° (2006)
Record low23° (1991)
Tue, 1058° / 42°0.1Climate normal
58 °Climate normal

Mount Vernon, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.1 in
Chance of precipitation32%
Record high75° (2022)
Record low17° (2018)
Wed, 1157° / 40°0.1Climate normal
57 °Climate normal

Mount Vernon, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.1 in
Chance of precipitation27%
Record high75° (1989)
Record low21° (2019)
Thu, 1255° / 39°0.08Climate normal
55 °Climate normal

Mount Vernon, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high77° (1999)
Record low11° (2019)
Fri, 1356° / 39°0.06Climate normal
56 °Climate normal

Mount Vernon, Friday, 13 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (1999)
Record low11° (1986)
Sat, 1456° / 41°0.08Climate normal
56 °Climate normal

Mount Vernon, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high76° (2025)
Record low15° (2018)
Sun, 1556° / 40°0.15Climate normal
56 °Climate normal

Mount Vernon, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.15 in
Chance of precipitation37%
Record high78° (2025)
Record low20° (2018)
Mon, 1656° / 39°0.1Climate normal
56 °Climate normal

Mount Vernon, Monday, 16 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.1 in
Chance of precipitation23%
Record high74° (2016)
Record low24° (1997)
Tue, 1757° / 41°0.11Climate normal
57 °Climate normal

Mount Vernon, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2016)
Record low19° (2014)
Wed, 1856° / 40°0.12Climate normal
56 °Climate normal

Mount Vernon, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.12 in
Chance of precipitation27%
Record high74° (2025)
Record low16° (2014)
Thu, 1956° / 40°0.1Climate normal
56 °Climate normal

Mount Vernon, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.1 in
Chance of precipitation30%
Record high70° (1979)
Record low20° (1980)

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 Mount Vernon, 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 Mount Vernon, 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.