Monthly outlook for Potomac Heights, MD: average high 56.3°, average low 38.4°. That is 0.9° above the climate normal for November. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 10 November (69.7°), the coolest 25 November (28°).
56.3°/38.4°
Average high / low
+0.9°
Above normal
2 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
56.4°
55.8°
+0.3°
20 November – 29 November
56.3°
53.2°
+1.7°
30 November – 9 December
at normal
49°
—
November records over 66 years
82.4°1 November 1974All-time high
20.1°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Occoquan (9 mi).
Wed, 1168° / 43°0
68 °
Potomac Heights, Wednesday, 11 November
Mostly clear. High 68°, low 43°.
Pressure29.94 inHg
Wind4.9 mph SE
Humidity47%
Visibility6.2 mi
Dew point44°
Thu, 1266° / 46°0.1
66 °
Potomac Heights, Thursday, 12 November
Rain. High 66°, low 46°.
Pressure29.44 inHg
Wind6.8 mph W
Humidity53%
Visibility6.2 mi
Dew point48°
Fri, 1348° / 41°0
48 °
Potomac Heights, Friday, 13 November
Overcast. High 48°, low 41°.
Pressure29.71 inHg
Wind14.5 mph NW
Humidity51%
Visibility6.2 mi
Dew point28°
Sat, 1448° / 37°0
48 °
Potomac Heights, Saturday, 14 November
Clear. High 48°, low 37°.
Pressure29.97 inHg
Wind14.4 mph NW
Humidity54%
Visibility6.2 mi
Dew point26°
Sun, 1549° / 36°0
49 °
Potomac Heights, Sunday, 15 November
Overcast. High 49°, low 36°.
Pressure30.33 inHg
Wind11.7 mph NW
Humidity59%
Visibility—
Dew point30°
Mon, 1653° / 38°0
53 °
Potomac Heights, Monday, 16 November
Partly cloudy. High 53°, low 38°.
Pressure30.47 inHg
Wind6.9 mph NW
Humidity51%
Visibility—
Dew point30°
Tue, 1751° / 39°0.03
51 °
Potomac Heights, Tuesday, 17 November
Light rain. High 51°, low 39°.
Pressure30.42 inHg
Wind4.5 mph NE
Humidity58%
Visibility—
Dew point33°
Wed, 1854° / 39°0.01
54 °
Potomac Heights, Wednesday, 18 November
Light rain. High 54°, low 39°.
Pressure30.27 inHg
Wind10.9 mph N
Humidity53%
Visibility—
Dew point31°
Thu, 1955° / 36°0
55 °
Potomac Heights, Thursday, 19 November
Partly cloudy. High 55°, low 36°.
Pressure30.36 inHg
Wind7 mph N
Humidity43%
Visibility—
Dew point25°
Fri, 2056° / 36°0
56 °
Potomac Heights, Friday, 20 November
Overcast. High 56°, low 36°.
Pressure30.42 inHg
Wind4.5 mph S
Humidity46%
Visibility—
Dew point27°
Sat, 2161° / 40°0
61 °
Potomac Heights, Saturday, 21 November
Overcast. High 61°, low 40°.
Pressure30.33 inHg
Wind7.1 mph S
Humidity47%
Visibility—
Dew point31°
Sun, 2268° / 47°0.01
68 °
Potomac Heights, Sunday, 22 November
Light rain. High 68°, low 47°.
Pressure30.15 inHg
Wind10.4 mph S
Humidity79%
Visibility—
Dew point51°
Mon, 2367° / 40°1.13
67 °
Potomac Heights, Monday, 23 November
Rain. High 67°, low 40°.
Pressure29.68 inHg
Wind18.4 mph S
Humidity96%
Visibility—
Dew point64°
Tue, 2442° / 30°0
42 °
Potomac Heights, Tuesday, 24 November
Clear. High 42°, low 30°.
Pressure30.27 inHg
Wind10.6 mph W
Humidity37%
Visibility—
Dew point12°
Wed, 2543° / 28°0
43 °
Potomac Heights, Wednesday, 25 November
Clear. High 43°, low 28°.
Pressure30.45 inHg
Wind7.2 mph NW
Humidity38%
Visibility—
Dew point13°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2655° / 40°0.14
55 °
Potomac Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.14 in
Chance of precipitation33%
Record high70° (2025)
Record low29° (1970)
Fri, 2754° / 40°0.1
54 °
Potomac Heights, Friday, 27 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.1 in
Chance of precipitation38%
Record high68° (1988)
Record low27° (1974)
Sat, 2854° / 40°0.16
54 °
Potomac Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.16 in
Chance of precipitation30%
Record high71° (1990)
Record low27° (2023)
Sun, 2951° / 38°0.12
51 °
Potomac Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation28%
Record high70° (1960)
Record low23° (2023)
Mon, 3050° / 38°0.12
50 °
Potomac Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.12 in
Chance of precipitation30%
Record high71° (2001)
Record low23° (1976)
Tue, 0151° / 37°0.17
51 °
Potomac Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.17 in
Chance of precipitation33%
Record high73° (2006)
Record low20° (1967)
Wed, 0250° / 37°0.08
50 °
Potomac Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation25%
Record high66° (1970)
Record low22° (1967)
Thu, 0350° / 37°0.09
50 °
Potomac Heights, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation20%
Record high69° (1998)
Record low21° (1976)
Fri, 0450° / 36°0.08
50 °
Potomac Heights, Friday, 4 December
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation23%
Record high73° (1998)
Record low20° (1966)
Sat, 0548° / 36°0.15
48 °
Potomac Heights, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high73° (1998)
Record low26° (1966)
Sun, 0649° / 36°0.1
49 °
Potomac Heights, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation33%
Record high76° (1998)
Record low19° (2002)
Mon, 0748° / 35°0.13
48 °
Potomac Heights, Monday, 7 December
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation23%
Record high75° (1998)
Record low9° (2002)
Tue, 0847° / 35°0.06
47 °
Potomac Heights, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (1978)
Record low20° (2002)
Wed, 0947° / 35°0.17
47 °
Potomac Heights, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.17 in
Chance of precipitation37%
Record high69° (1966)
Record low19° (1989)
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 Potomac Heights, 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 Potomac Heights, 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.