Monthly outlook for Mount Vernon, WI: average high 42.4°, average low 29.1°. That is 0.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 21 November (55.8°), the coolest 25 November (12.3°).
42.4°/29.1°
Average high / low
+0.3°
Above normal
3 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
46.2°
43.1°
+1.7°
21 November – 30 November
36.2°
38.5°
-1.3°
1 December – 10 December
at normal
33.1°
—
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).
Thu, 1244° / 32°0.01
44 °
Mount Vernon, Thursday, 12 November
Light rain. High 44°, low 32°.
Pressure30.03 inHg
Wind15.3 mph N
Humidity67%
Visibility6.2 mi
Dew point23°
Fri, 1338° / 28°0
38 °
Mount Vernon, Friday, 13 November
Overcast. High 38°, low 28°.
Pressure30.12 inHg
Wind12.2 mph N
Humidity70%
Visibility6.2 mi
Dew point22°
Sat, 1442° / 26°0
42 °
Mount Vernon, Saturday, 14 November
Overcast. High 42°, low 26°.
Pressure30.27 inHg
Wind7.9 mph N
Humidity70%
Visibility6.2 mi
Dew point25°
Sun, 1543° / 28°0
43 °
Mount Vernon, Sunday, 15 November
Partly cloudy. High 43°, low 28°.
Pressure30.45 inHg
Wind2 mph S
Humidity65%
Visibility6.2 mi
Dew point30°
Mon, 1646° / 29°0
46 °
Mount Vernon, Monday, 16 November
Clear. High 46°, low 29°.
Pressure30.45 inHg
Wind9.4 mph SW
Humidity58%
Visibility—
Dew point29°
Tue, 1748° / 32°0
48 °
Mount Vernon, Tuesday, 17 November
Clear. High 48°, low 32°.
Pressure30.42 inHg
Wind11.1 mph S
Humidity52%
Visibility—
Dew point29°
Wed, 1849° / 32°0
49 °
Mount Vernon, Wednesday, 18 November
Clear. High 49°, low 32°.
Pressure30.27 inHg
Wind13.6 mph SW
Humidity45%
Visibility—
Dew point27°
Thu, 1951° / 42°0.01
51 °
Mount Vernon, Thursday, 19 November
Light rain. High 51°, low 42°.
Pressure30.12 inHg
Wind10.9 mph S
Humidity45%
Visibility—
Dew point29°
Fri, 2049° / 42°0.09
49 °
Mount Vernon, Friday, 20 November
Light rain. High 49°, low 42°.
Pressure30.00 inHg
Wind10.4 mph SE
Humidity87%
Visibility—
Dew point43°
Sat, 2156° / 41°0
56 °
Mount Vernon, Saturday, 21 November
Light rain. High 56°, low 41°.
Pressure29.94 inHg
Wind10.5 mph W
Humidity62%
Visibility—
Dew point41°
Sun, 2243° / 27°0.5
43 °
Mount Vernon, Sunday, 22 November
Snow. High 43°, low 27°.
Pressure30.00 inHg
Wind13.6 mph N
Humidity97%
Visibility—
Dew point31°
Mon, 2329° / 18°0
29 °
Mount Vernon, Monday, 23 November
Overcast. High 29°, low 18°.
Pressure29.91 inHg
Wind7 mph NW
Humidity70%
Visibility—
Dew point18°
Tue, 2425° / 13°0
25 °
Mount Vernon, Tuesday, 24 November
Clear. High 25°, low 13°.
Pressure30.27 inHg
Wind10.3 mph NW
Humidity59%
Visibility—
Dew point12°
Wed, 2528° / 12°0
28 °
Mount Vernon, Wednesday, 25 November
Clear. High 28°, low 12°.
Pressure30.39 inHg
Wind12.5 mph SW
Humidity72%
Visibility—
Dew point16°
Thu, 2636° / 22°0
36 °
Mount Vernon, Thursday, 26 November
Mostly clear. High 36°, low 22°.
Pressure30.39 inHg
Wind9.9 mph SW
Humidity85%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.