Monthly outlook for Mount Vernon, WI: average high 45.4°, average low 31.5°. That is 2.4° above the climate normal for November. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 22 November (60.2°), the coolest 25 November (18.2°).
45.4°/31.5°
Average high / low
+2.4°
Above normal
3 / 4
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
50.1°
42.6°
+4.2°
23 November – 2 December
37.4°
37.5°
-0°
3 December – 12 December
at normal
32.2°
—
November records over 66 years
70.7°9 November 2020All-time high
-5.3°29 November 1995All-time low
Climate normals and records are computed from the nearest reference point — Mount Horeb (6 mi).
Sat, 1443° / 28°0
43 °
Mount Vernon, Saturday, 14 November
Overcast. High 43°, low 28°.
Pressure30.33 inHg
Wind5.8 mph N
Humidity68%
Visibility6.2 mi
Dew point27°
Sun, 1546° / 27°0
46 °
Mount Vernon, Sunday, 15 November
Clear. High 46°, low 27°.
Pressure30.47 inHg
Wind2.4 mph W
Humidity60%
Visibility6.2 mi
Dew point29°
Mon, 1648° / 30°0
48 °
Mount Vernon, Monday, 16 November
Clear. High 48°, low 30°.
Pressure30.47 inHg
Wind10.1 mph SW
Humidity56%
Visibility6.2 mi
Dew point32°
Tue, 1751° / 33°0
51 °
Mount Vernon, Tuesday, 17 November
Partly cloudy. High 51°, low 33°.
Pressure30.42 inHg
Wind10.5 mph S
Humidity59%
Visibility—
Dew point33°
Wed, 1852° / 35°0
52 °
Mount Vernon, Wednesday, 18 November
Overcast. High 52°, low 35°.
Pressure30.24 inHg
Wind14 mph S
Humidity62%
Visibility—
Dew point36°
Thu, 1958° / 42°0
58 °
Mount Vernon, Thursday, 19 November
Mostly clear. High 58°, low 42°.
Pressure30.15 inHg
Wind17.9 mph W
Humidity54%
Visibility—
Dew point40°
Fri, 2050° / 37°0.02
50 °
Mount Vernon, Friday, 20 November
Light rain. High 50°, low 37°.
Pressure30.42 inHg
Wind5.6 mph NW
Humidity53%
Visibility—
Dew point31°
Sat, 2153° / 44°0.67
53 °
Mount Vernon, Saturday, 21 November
Rain. High 53°, low 44°.
Pressure30.06 inHg
Wind14.3 mph SW
Humidity90%
Visibility—
Dew point49°
Sun, 2260° / 51°0.1
60 °
Mount Vernon, Sunday, 22 November
Light rain. High 60°, low 51°.
Pressure29.83 inHg
Wind19 mph S
Humidity71%
Visibility—
Dew point49°
Mon, 2356° / 33°0.69
56 °
Mount Vernon, Monday, 23 November
Snow. High 56°, low 33°.
Pressure29.77 inHg
Wind18.8 mph SW
Humidity86%
Visibility—
Dew point41°
Tue, 2429° / 22°0
29 °
Mount Vernon, Tuesday, 24 November
Overcast. High 29°, low 22°.
Pressure30.24 inHg
Wind16.4 mph NW
Humidity48%
Visibility—
Dew point11°
Wed, 2528° / 18°0
28 °
Mount Vernon, Wednesday, 25 November
Clear. High 28°, low 18°.
Pressure30.62 inHg
Wind10.6 mph NW
Humidity34%
Visibility—
Dew point1°
Thu, 2632° / 20°0
32 °
Mount Vernon, Thursday, 26 November
Partly cloudy. High 32°, low 20°.
Pressure30.53 inHg
Wind6.9 mph S
Humidity27%
Visibility—
Dew point-1°
Fri, 2737° / 24°0
37 °
Mount Vernon, Friday, 27 November
Overcast. High 37°, low 24°.
Pressure30.21 inHg
Wind15.7 mph SW
Humidity36%
Visibility—
Dew point11°
Sat, 2842° / 29°0
42 °
Mount Vernon, Saturday, 28 November
Partly cloudy. High 42°, low 29°.
Pressure30.12 inHg
Wind12 mph SW
Humidity60%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2937° / 25°0.06
37 °
Mount Vernon, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation33%
Record high63° (1998)
Record low-5° (1995)
Mon, 3037° / 25°0.06
37 °
Mount Vernon, Monday, 30 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation25%
Record high63° (1998)
Record low3° (1978)
Tue, 0135° / 24°0.09
35 °
Mount Vernon, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.09 in
Chance of precipitation33%
Record high55° (1998)
Record low1° (2025)
Wed, 0236° / 23°0.04
36 °
Mount Vernon, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.04 in
Chance of precipitation25%
Record high63° (1982)
Record low1° (1976)
Thu, 0335° / 23°0.09
35 °
Mount Vernon, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.09 in
Chance of precipitation30%
Record high62° (1982)
Record low-10° (1985)
Fri, 0434° / 22°0.06
34 °
Mount Vernon, Friday, 4 December
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.06 in
Chance of precipitation27%
Record high60° (2017)
Record low-4° (2025)
Sat, 0535° / 22°0.07
35 °
Mount Vernon, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.07 in
Chance of precipitation33%
Record high63° (2001)
Record low-5° (2005)
Sun, 0632° / 20°0.04
32 °
Mount Vernon, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high32°
Average low20°
Average precipitation0.04 in
Chance of precipitation25%
Record high56° (1998)
Record low-7° (2007)
Mon, 0730° / 19°0.08
30 °
Mount Vernon, Monday, 7 December
Climate normal for this date — 60-year average.
Average high30°
Average low19°
Average precipitation0.08 in
Chance of precipitation30%
Record high48° (2023)
Record low-10° (2005)
Tue, 0831° / 20°0.05
31 °
Mount Vernon, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high31°
Average low20°
Average precipitation0.05 in
Chance of precipitation25%
Record high53° (2023)
Record low-6° (2005)
Wed, 0932° / 19°0.08
32 °
Mount Vernon, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high32°
Average low19°
Average precipitation0.08 in
Chance of precipitation33%
Record high48° (2020)
Record low-9° (1995)
Thu, 1031° / 19°0.07
31 °
Mount Vernon, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high31°
Average low19°
Average precipitation0.07 in
Chance of precipitation22%
Record high55° (2015)
Record low-12° (1978)
Fri, 1130° / 17°0.08
30 °
Mount Vernon, Friday, 11 December
Climate normal for this date — 60-year average.
Average high30°
Average low17°
Average precipitation0.08 in
Chance of precipitation27%
Record high51° (1965)
Record low-13° (1977)
Sat, 1232° / 17°0.05
32 °
Mount Vernon, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.05 in
Chance of precipitation18%
Record high53° (1968)
Record low-8° (2000)
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.