As of 00:02 CDT

Weather in Mount Vernon, WI

46°

Mount Vernon, Friday, 30 October, 00:02

Clear. Feels like 43°. High 57°, low 42°.

Pressure30.27 inHg

Wind5.8 mph NW

Humidity65%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Mount Vernon, WI: average high 52.5°, average low 43.5°. That is 2.7° above the climate normal for October. Precipitation is expected on 7 days (about 1.9 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 1 November (66.8°), the coolest 11 November (32.6°).

52.5°/43.5°

Average high / low

+2.7°

Above normal

7 / 4

Wet days / normal

1.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	57.6°	49.7°	+4.4°
9 November – 18 November	44°	44°	+0°
19 November – 28 November	at normal	39.6°	—

October records over 66 years

84.7°3 October 2025All-time high

21.6°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Mount Horeb (6 mi).

Sat, 3161° / 52°

0.11

61 °

Mount Vernon, Saturday, 31 October

Light rain. High 61°, low 52°.

Pressure30.30 inHg

Wind9.1 mph SE

Humidity75%

Visibility6.2 mi

Dew point49°

Sun, 0167° / 49°

67 °

Mount Vernon, Sunday, 1 November

Overcast. High 67°, low 49°.

Pressure30.30 inHg

Wind7.3 mph S

Humidity71%

Visibility6.2 mi

Dew point55°

Mon, 0261° / 52°

0.15

61 °

Mount Vernon, Monday, 2 November

Rain. High 61°, low 52°.

Pressure30.06 inHg

Wind12.6 mph S

Humidity83%

Visibility6.2 mi

Dew point54°

Tue, 0364° / 58°

0.52

64 °

Mount Vernon, Tuesday, 3 November

Rain. High 64°, low 58°.

Pressure29.80 inHg

Wind18.6 mph S

Humidity87%

Visibility—

Dew point59°

Wed, 0457° / 51°

0.78

57 °

Mount Vernon, Wednesday, 4 November

Rain. High 57°, low 51°.

Pressure29.74 inHg

Wind8.9 mph NW

Humidity97%

Visibility—

Dew point51°

Thu, 0556° / 45°

56 °

Mount Vernon, Thursday, 5 November

Overcast. High 56°, low 45°.

Pressure29.80 inHg

Wind10.2 mph N

Humidity65%

Visibility—

Dew point43°

Fri, 0655° / 41°

55 °

Mount Vernon, Friday, 6 November

Overcast. High 55°, low 41°.

Pressure29.88 inHg

Wind9.2 mph N

Humidity64%

Visibility—

Dew point40°

Sat, 0752° / 39°

52 °

Mount Vernon, Saturday, 7 November

Overcast. High 52°, low 39°.

Pressure30.18 inHg

Wind6.3 mph N

Humidity60%

Visibility—

Dew point36°

Sun, 0847° / 39°

47 °

Mount Vernon, Sunday, 8 November

Overcast. High 47°, low 39°.

Pressure30.12 inHg

Wind14 mph E

Humidity71%

Visibility—

Dew point37°

Mon, 0944° / 40°

0.13

44 °

Mount Vernon, Monday, 9 November

Light rain. High 44°, low 40°.

Pressure30.06 inHg

Wind12.9 mph NE

Humidity89%

Visibility—

Dew point38°

Tue, 1043° / 35°

43 °

Mount Vernon, Tuesday, 10 November

Overcast. High 43°, low 35°.

Pressure30.18 inHg

Wind9.6 mph NE

Humidity56%

Visibility—

Dew point28°

Wed, 1145° / 33°

45 °

Mount Vernon, Wednesday, 11 November

Overcast. High 45°, low 33°.

Pressure29.97 inHg

Wind7.2 mph S

Humidity55%

Visibility—

Dew point28°

Thu, 1240° / 38°

0.19

40 °

Mount Vernon, Thursday, 12 November

Light rain. High 40°, low 38°.

Pressure29.65 inHg

Wind7.5 mph SE

Humidity96%

Visibility—

Dew point38°

Fri, 1347° / 40°

0.01

47 °

Mount Vernon, Friday, 13 November

Light rain. High 47°, low 40°.

Pressure29.74 inHg

Wind15.3 mph W

Humidity65%

Visibility—

Dew point35°

Sat, 1445° / 42°

0.04

45 °

Mount Vernon, Saturday, 14 November

Light rain. High 45°, low 42°.

Pressure29.68 inHg

Wind11.4 mph SE

Humidity93%

Visibility—

Dew point42°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 1544° / 32°

0.06

44 °

Mount Vernon, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.06 in

Chance of precipitation28%

Record high66° (2025)

Record low13° (1995)

Mon, 1644° / 31°

0.05

44 °

Mount Vernon, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.05 in

Chance of precipitation22%

Record high60° (2023)

Record low19° (1989)

Tue, 1744° / 32°

0.09

44 °

Mount Vernon, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.09 in

Chance of precipitation22%

Record high67° (2016)

Record low11° (2005)

Wed, 1844° / 31°

0.08

44 °

Mount Vernon, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.08 in

Chance of precipitation30%

Record high64° (1999)

Record low9° (2014)

Thu, 1943° / 31°

0.06

43 °

Mount Vernon, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.06 in

Chance of precipitation27%

Record high61° (2020)

Record low10° (1986)

Fri, 2041° / 30°

0.08

41 °

Mount Vernon, Friday, 20 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.08 in

Chance of precipitation32%

Record high60° (2003)

Record low10° (2022)

Sat, 2140° / 28°

0.09

40 °

Mount Vernon, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.09 in

Chance of precipitation25%

Record high63° (1990)

Record low5° (1964)

Sun, 2240° / 28°

0.03

40 °

Mount Vernon, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.03 in

Chance of precipitation15%

Record high59° (2012)

Record low5° (2015)

Mon, 2341° / 29°

0.1

41 °

Mount Vernon, Monday, 23 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.1 in

Chance of precipitation32%

Record high59° (1983)

Record low9° (1970)

Tue, 2439° / 27°

0.06

39 °

Mount Vernon, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.06 in

Chance of precipitation23%

Record high58° (2017)

Record low3° (1985)

Wed, 2539° / 28°

0.05

39 °

Mount Vernon, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.05 in

Chance of precipitation30%

Record high53° (1998)

Record low5° (1977)

Thu, 2639° / 27°

0.09

39 °

Mount Vernon, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.09 in

Chance of precipitation33%

Record high61° (1990)

Record low-3° (1977)

Fri, 2737° / 26°

0.13

37 °

Mount Vernon, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°

Average low26°

Average precipitation0.13 in

Chance of precipitation45%

Record high62° (1990)

Record low1° (1996)

Sat, 2836° / 24°

0.09

36 °

Mount Vernon, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low24°

Average precipitation0.09 in

Chance of precipitation23%

Record high61° (1998)

Record low3° (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, WI 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, WI 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.