Monthly outlook for Lower Merion, PA: average high 55.8°, average low 43.4°. That is 2.5° above the climate normal for November. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 25 November (65.2°), the coolest 17 November (32.8°).
55.8°/43.4°
Average high / low
+2.5°
Above normal
5 / 5
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
53.1°
52°
+0.6°
22 November – 1 December
60.2°
49.7°
+5.9°
2 December – 11 December
at normal
45.3°
—
November records over 66 years
78.6°1 November 2024All-time high
14.9°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Narberth (2 mi).
Fri, 1347° / 39°0.73
47 °
Lower Merion, Friday, 13 November
Rain. High 47°, low 39°.
Pressure29.62 inHg
Wind10.2 mph N
Humidity98%
Visibility1.6 mi
Dew point36°
Sat, 1445° / 34°0
45 °
Lower Merion, Saturday, 14 November
Overcast. High 45°, low 34°.
Pressure29.85 inHg
Wind13.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point28°
Sun, 1548° / 37°0
48 °
Lower Merion, Sunday, 15 November
Partly cloudy. High 48°, low 37°.
Pressure30.15 inHg
Wind13.3 mph NW
Humidity55%
Visibility6.2 mi
Dew point31°
Mon, 1649° / 35°0
49 °
Lower Merion, Monday, 16 November
Overcast. High 49°, low 35°.
Pressure30.42 inHg
Wind8.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point33°
Tue, 1751° / 33°0
51 °
Lower Merion, Tuesday, 17 November
Clear. High 51°, low 33°.
Pressure30.50 inHg
Wind7.2 mph W
Humidity72%
Visibility—
Dew point35°
Wed, 1856° / 38°0
56 °
Lower Merion, Wednesday, 18 November
Clear. High 56°, low 38°.
Pressure30.47 inHg
Wind6.6 mph NW
Humidity57%
Visibility—
Dew point31°
Thu, 1959° / 44°0
59 °
Lower Merion, Thursday, 19 November
Partly cloudy. High 59°, low 44°.
Pressure30.42 inHg
Wind6.8 mph SW
Humidity43%
Visibility—
Dew point29°
Fri, 2062° / 46°0
62 °
Lower Merion, Friday, 20 November
Clear. High 62°, low 46°.
Pressure30.33 inHg
Wind8.1 mph NW
Humidity43%
Visibility—
Dew point32°
Sat, 2158° / 46°0
58 °
Lower Merion, Saturday, 21 November
Clear. High 58°, low 46°.
Pressure30.45 inHg
Wind4.9 mph N
Humidity63%
Visibility—
Dew point40°
Sun, 2264° / 48°0
64 °
Lower Merion, Sunday, 22 November
Partly cloudy. High 64°, low 48°.
Pressure30.27 inHg
Wind8.8 mph SW
Humidity62%
Visibility—
Dew point42°
Mon, 2353° / 50°0
53 °
Lower Merion, Monday, 23 November
Overcast. High 53°, low 50°.
Pressure30.47 inHg
Wind12 mph E
Humidity80%
Visibility—
Dew point47°
Tue, 2465° / 53°0.15
65 °
Lower Merion, Tuesday, 24 November
Light rain. High 65°, low 53°.
Pressure30.27 inHg
Wind15.4 mph S
Humidity91%
Visibility—
Dew point55°
Wed, 2565° / 52°0.18
65 °
Lower Merion, Wednesday, 25 November
Rain. High 65°, low 52°.
Pressure30.21 inHg
Wind14.3 mph S
Humidity52%
Visibility—
Dew point41°
Thu, 2658° / 48°0.01
58 °
Lower Merion, Thursday, 26 November
Light rain. High 58°, low 48°.
Pressure30.33 inHg
Wind7.5 mph E
Humidity42%
Visibility—
Dew point31°
Fri, 2756° / 44°0.16
56 °
Lower Merion, Friday, 27 November
Light rain. High 56°, low 44°.
Pressure30.21 inHg
Wind10.4 mph NW
Humidity80%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2852° / 38°0.14
52 °
Lower Merion, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation27%
Record high68° (1990)
Record low22° (2014)
Sun, 2949° / 35°0.13
49 °
Lower Merion, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation32%
Record high66° (1990)
Record low24° (2023)
Mon, 3047° / 35°0.11
47 °
Lower Merion, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.11 in
Chance of precipitation32%
Record high69° (2001)
Record low21° (1976)
Tue, 0148° / 35°0.11
48 °
Lower Merion, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high70° (2006)
Record low15° (1967)
Wed, 0247° / 33°0.11
47 °
Lower Merion, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation30%
Record high62° (1970)
Record low12° (1967)
Thu, 0347° / 33°0.12
47 °
Lower Merion, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation25%
Record high66° (1998)
Record low15° (1976)
Fri, 0446° / 33°0.1
46 °
Lower Merion, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation27%
Record high70° (1998)
Record low14° (1966)
Sat, 0545° / 33°0.16
45 °
Lower Merion, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.16 in
Chance of precipitation30%
Record high68° (1982)
Record low21° (1966)
Sun, 0646° / 33°0.13
46 °
Lower Merion, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.13 in
Chance of precipitation37%
Record high69° (1998)
Record low20° (2002)
Mon, 0745° / 32°0.11
45 °
Lower Merion, Monday, 7 December
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation22%
Record high73° (1998)
Record low9° (2002)
Tue, 0844° / 32°0.11
44 °
Lower Merion, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.11 in
Chance of precipitation27%
Record high64° (1978)
Record low19° (2005)
Wed, 0944° / 31°0.22
44 °
Lower Merion, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.22 in
Chance of precipitation38%
Record high65° (1966)
Record low12° (1989)
Thu, 1045° / 32°0.12
45 °
Lower Merion, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.12 in
Chance of precipitation35%
Record high67° (1966)
Record low13° (1989)
Fri, 1144° / 32°0.19
44 °
Lower Merion, Friday, 11 December
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.19 in
Chance of precipitation43%
Record high66° (2021)
Record low14° (1968)
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 Lower Merion, PA 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 Lower Merion, PA 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.