Monthly outlook for Mount Vernon, MD: average high 68.4°, average low 53.7°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 16 October (81°), the coolest 18 October (44.1°).
68.4°/53.7°
Average high / low
+1.5°
Above normal
4 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
70.3°
66.6°
+2°
23 October – 1 November
65.3°
63.6°
+1°
2 November – 11 November
at normal
60.5°
—
October records over 66 years
92.5°2 October 2019All-time high
32.9°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Princess Anne (5 mi).
Wed, 1480° / 67°0
80 °
Mount Vernon, Wednesday, 14 October
Clear. High 80°, low 67°.
Pressure29.97 inHg
Wind6.1 mph SW
Humidity70%
Visibility6.2 mi
Dew point67°
Thu, 1572° / 60°0.2
72 °
Mount Vernon, Thursday, 15 October
Rain. High 72°, low 60°.
Pressure30.21 inHg
Wind7.9 mph NE
Humidity57%
Visibility6.2 mi
Dew point53°
Fri, 1681° / 59°0.2
81 °
Mount Vernon, Friday, 16 October
Light rain. High 81°, low 59°.
Pressure29.74 inHg
Wind15.2 mph SW
Humidity74%
Visibility6.2 mi
Dew point68°
Sat, 1759° / 47°0.01
59 °
Mount Vernon, Saturday, 17 October
Light rain. High 59°, low 47°.
Pressure30.21 inHg
Wind19.2 mph NW
Humidity43%
Visibility—
Dew point33°
Sun, 1859° / 44°0
59 °
Mount Vernon, Sunday, 18 October
Clear. High 59°, low 44°.
Pressure30.53 inHg
Wind10 mph SW
Humidity40%
Visibility—
Dew point31°
Mon, 1965° / 46°0
65 °
Mount Vernon, Monday, 19 October
Clear. High 65°, low 46°.
Pressure30.53 inHg
Wind8.7 mph SW
Humidity53%
Visibility—
Dew point42°
Tue, 2070° / 54°0
70 °
Mount Vernon, Tuesday, 20 October
Overcast. High 70°, low 54°.
Pressure30.36 inHg
Wind4.9 mph SW
Humidity65%
Visibility—
Dew point53°
Wed, 2170° / 54°0
70 °
Mount Vernon, Wednesday, 21 October
Clear. High 70°, low 54°.
Pressure30.33 inHg
Wind9.9 mph NE
Humidity61%
Visibility—
Dew point51°
Thu, 2268° / 53°0
68 °
Mount Vernon, Thursday, 22 October
Clear. High 68°, low 53°.
Pressure30.45 inHg
Wind8.9 mph SE
Humidity53%
Visibility—
Dew point46°
Fri, 2369° / 52°0
69 °
Mount Vernon, Friday, 23 October
Clear. High 69°, low 52°.
Pressure30.42 inHg
Wind10 mph S
Humidity57%
Visibility—
Dew point49°
Sat, 2476° / 61°0
76 °
Mount Vernon, Saturday, 24 October
Overcast. High 76°, low 61°.
Pressure30.24 inHg
Wind11.1 mph SW
Humidity65%
Visibility—
Dew point56°
Sun, 2567° / 58°0
67 °
Mount Vernon, Sunday, 25 October
Overcast. High 67°, low 58°.
Pressure30.24 inHg
Wind11.5 mph E
Humidity57%
Visibility—
Dew point46°
Mon, 2660° / 50°0.31
60 °
Mount Vernon, Monday, 26 October
Rain. High 60°, low 50°.
Pressure30.03 inHg
Wind10.4 mph N
Humidity94%
Visibility—
Dew point51°
Tue, 2757° / 46°0.17
57 °
Mount Vernon, Tuesday, 27 October
Rain. High 57°, low 46°.
Pressure29.74 inHg
Wind9.2 mph NW
Humidity84%
Visibility—
Dew point44°
Wed, 2863° / 52°0
63 °
Mount Vernon, Wednesday, 28 October
Partly cloudy. High 63°, low 52°.
Pressure29.59 inHg
Wind16.4 mph SW
Humidity58%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2962° / 50°0.22
62 °
Mount Vernon, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high62°
Average low50°
Average precipitation0.22 in
Chance of precipitation15%
Record high82° (2023)
Record low35° (1965)
Fri, 3062° / 49°0.09
62 °
Mount Vernon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.09 in
Chance of precipitation17%
Record high80° (2023)
Record low37° (1965)
Sat, 3163° / 50°0.06
63 °
Mount Vernon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high63°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high78° (2019)
Record low36° (1975)
Sun, 0164° / 51°0.12
64 °
Mount Vernon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high64°
Average low51°
Average precipitation0.12 in
Chance of precipitation27%
Record high76° (2024)
Record low39° (1975)
Mon, 0263° / 51°0.1
63 °
Mount Vernon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high63°
Average low51°
Average precipitation0.1 in
Chance of precipitation27%
Record high77° (1971)
Record low36° (2023)
Tue, 0363° / 50°0.08
63 °
Mount Vernon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low50°
Average precipitation0.08 in
Chance of precipitation25%
Record high76° (2016)
Record low37° (1980)
Wed, 0461° / 49°0.09
61 °
Mount Vernon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low49°
Average precipitation0.09 in
Chance of precipitation32%
Record high76° (2003)
Record low35° (2006)
Thu, 0561° / 49°0.1
61 °
Mount Vernon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low49°
Average precipitation0.1 in
Chance of precipitation32%
Record high78° (2022)
Record low33° (2006)
Fri, 0660° / 48°0.09
60 °
Mount Vernon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.09 in
Chance of precipitation27%
Record high78° (2022)
Record low34° (2012)
Sat, 0760° / 47°0.07
60 °
Mount Vernon, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.07 in
Chance of precipitation22%
Record high80° (2024)
Record low33° (1962)
Sun, 0859° / 46°0.08
59 °
Mount Vernon, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.08 in
Chance of precipitation27%
Record high73° (1986)
Record low32° (1960)
Mon, 0959° / 46°0.07
59 °
Mount Vernon, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.07 in
Chance of precipitation25%
Record high76° (1986)
Record low28° (2019)
Tue, 1060° / 47°0.11
60 °
Mount Vernon, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.11 in
Chance of precipitation32%
Record high75° (2020)
Record low34° (2017)
Wed, 1158° / 47°0.13
58 °
Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.13 in
Chance of precipitation30%
Record high76° (2020)
Record low24° (2017)
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, MD 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, MD 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.