As of 08:17 CDT

Weather in Mount Vernon, MO

49°Current weather

Mount Vernon, Monday, 19 October, 08:17

Clear. Feels like 48°. High 70°, low 44°.

Pressure30.36 inHg
Wind4 mph E
Humidity85%
Visibility6.2 mi
Dew point44°

Monthly outlook for Mount Vernon, MO: average high 66.2°, average low 46.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 25 October (77°), the coolest 28 October (29.8°).

66.2°/46.1°
Average high / low
+1.3°
Above normal
2 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October69.9°65.1°+2.7°
29 October – 7 November59.9°60.7°-0.4°
8 November – 17 Novemberat normal57°—

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).

Tue, 2073° / 45°0Overcast
73 °Overcast

Mount Vernon, Tuesday, 20 October

Overcast. High 73°, low 45°.

Pressure30.33 inHg
Wind5.8 mph S
Humidity55%
Visibility6.2 mi
Dew point50°
Wed, 2170° / 48°0Overcast
70 °Overcast

Mount Vernon, Wednesday, 21 October

Overcast. High 70°, low 48°.

Pressure30.30 inHg
Wind2.8 mph SW
Humidity49%
Visibility6.2 mi
Dew point48°
Thu, 2273° / 51°0Clear
73 °Clear

Mount Vernon, Thursday, 22 October

Clear. High 73°, low 51°.

Pressure30.27 inHg
Wind6.3 mph SE
Humidity47%
Visibility6.2 mi
Dew point49°
Fri, 2373° / 54°0Partly cloudy
73 °Partly cloudy

Mount Vernon, Friday, 23 October

Partly cloudy. High 73°, low 54°.

Pressure30.21 inHg
Wind11.2 mph SE
Humidity49%
Visibility—
Dew point49°
Sat, 2474° / 55°0Overcast
74 °Overcast

Mount Vernon, Saturday, 24 October

Overcast. High 74°, low 55°.

Pressure30.27 inHg
Wind12.1 mph SE
Humidity47%
Visibility—
Dew point49°
Sun, 2577° / 59°0Overcast
77 °Overcast

Mount Vernon, Sunday, 25 October

Overcast. High 77°, low 59°.

Pressure30.33 inHg
Wind10.3 mph SW
Humidity27%
Visibility—
Dew point38°
Mon, 2675° / 59°0Overcast
75 °Overcast

Mount Vernon, Monday, 26 October

Overcast. High 75°, low 59°.

Pressure30.18 inHg
Wind10 mph S
Humidity31%
Visibility—
Dew point40°
Tue, 2764° / 43°0.08Light rain
64 °Light rain

Mount Vernon, Tuesday, 27 October

Light rain. High 64°, low 43°.

Pressure30.06 inHg
Wind17.8 mph N
Humidity90%
Visibility—
Dew point55°
Wed, 2851° / 30°0Clear
51 °Clear

Mount Vernon, Wednesday, 28 October

Clear. High 51°, low 30°.

Pressure30.45 inHg
Wind15 mph N
Humidity21%
Visibility—
Dew point8°
Thu, 2961° / 30°0Clear
61 °Clear

Mount Vernon, Thursday, 29 October

Clear. High 61°, low 30°.

Pressure30.27 inHg
Wind10.4 mph SW
Humidity15%
Visibility—
Dew point7°
Fri, 3055° / 43°0.05Light rain
55 °Light rain

Mount Vernon, Friday, 30 October

Light rain. High 55°, low 43°.

Pressure30.00 inHg
Wind16.4 mph S
Humidity46%
Visibility—
Dew point31°
Sat, 3165° / 50°0.02Light rain
65 °Light rain

Mount Vernon, Saturday, 31 October

Light rain. High 65°, low 50°.

Pressure29.88 inHg
Wind14.7 mph SE
Humidity63%
Visibility—
Dew point50°
Sun, 0173° / 50°0Overcast
73 °Overcast

Mount Vernon, Sunday, 1 November

Overcast. High 73°, low 50°.

Pressure30.03 inHg
Wind12.9 mph N
Humidity44%
Visibility—
Dew point45°
Mon, 0255° / 34°0.02Light rain
55 °Light rain

Mount Vernon, Monday, 2 November

Light rain. High 55°, low 34°.

Pressure30.18 inHg
Wind12.6 mph NE
Humidity35%
Visibility—
Dew point24°
Tue, 0351° / 43°0.04Light rain
51 °Light rain

Mount Vernon, Tuesday, 3 November

Light rain. High 51°, low 43°.

Pressure30.00 inHg
Wind10.8 mph NE
Humidity56%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0460° / 44°0.19Climate normal
60 °Climate normal

Mount Vernon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.19 in
Chance of precipitation35%
Record high78° (1978)
Record low17° (1991)
Thu, 0559° / 44°0.11Climate normal
59 °Climate normal

Mount Vernon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation33%
Record high77° (2017)
Record low25° (1976)
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)

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.