As of 04:06 EDT

Weather in Lower Merion, PA

47°

Lower Merion, Wednesday, 28 October, 04:06

Clear. Feels like 46°. High 65°, low 44°.

Pressure30.42 inHg

Wind3.4 mph NE

Humidity86%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Lower Merion, PA: average high 60.4°, average low 48.2°. That is 1.6° above the climate normal for October. Precipitation is expected on 4 days (about 2.9 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (70.8°), the coolest 28 October (43.7°).

60.4°/48.2°

Average high / low

+1.6°

Above normal

4 / 4

Wet days / normal

2.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	63.2°	58.9°	+2.4°
7 November – 16 November	55.7°	54.1°	+0.9°
17 November – 26 November	at normal	50.7°	—

October records over 66 years

93°2 October 2019All-time high

27.5°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Narberth (2 mi).

Thu, 2971° / 44°

71 °

Lower Merion, Thursday, 29 October

Clear. High 71°, low 44°.

Pressure30.24 inHg

Wind5.1 mph SW

Humidity63%

Visibility6.2 mi

Dew point52°

Fri, 3070° / 50°

70 °

Lower Merion, Friday, 30 October

Clear. High 70°, low 50°.

Pressure30.09 inHg

Wind10.1 mph NW

Humidity62%

Visibility6.2 mi

Dew point54°

Sat, 3159° / 44°

59 °

Lower Merion, Saturday, 31 October

Mostly clear. High 59°, low 44°.

Pressure30.42 inHg

Wind5.1 mph N

Humidity56%

Visibility6.2 mi

Dew point40°

Sun, 0166° / 50°

66 °

Lower Merion, Sunday, 1 November

Clear. High 66°, low 50°.

Pressure30.42 inHg

Wind8.1 mph SW

Humidity52%

Visibility—

Dew point42°

Mon, 0269° / 49°

69 °

Lower Merion, Monday, 2 November

Overcast. High 69°, low 49°.

Pressure30.30 inHg

Wind6.2 mph SW

Humidity59%

Visibility—

Dew point46°

Tue, 0364° / 50°

0.03

64 °

Lower Merion, Tuesday, 3 November

Light rain. High 64°, low 50°.

Pressure29.97 inHg

Wind16.5 mph E

Humidity73%

Visibility—

Dew point54°

Wed, 0454° / 48°

54 °

Lower Merion, Wednesday, 4 November

Overcast. High 54°, low 48°.

Pressure30.36 inHg

Wind16 mph E

Humidity51%

Visibility—

Dew point34°

Thu, 0557° / 53°

2.15

57 °

Lower Merion, Thursday, 5 November

Heavy rain. High 57°, low 53°.

Pressure29.97 inHg

Wind21.9 mph E

Humidity90%

Visibility—

Dew point51°

Fri, 0656° / 50°

0.04

56 °

Lower Merion, Friday, 6 November

Light rain. High 56°, low 50°.

Pressure29.74 inHg

Wind10.8 mph N

Humidity74%

Visibility—

Dew point46°

Sat, 0754° / 50°

0.01

54 °

Lower Merion, Saturday, 7 November

Light rain. High 54°, low 50°.

Pressure29.91 inHg

Wind7.1 mph NW

Humidity80%

Visibility—

Dew point46°

Sun, 0854° / 49°

0.41

54 °

Lower Merion, Sunday, 8 November

Rain. High 54°, low 49°.

Pressure30.06 inHg

Wind7 mph NE

Humidity81%

Visibility—

Dew point48°

Mon, 0951° / 49°

0.02

51 °

Lower Merion, Monday, 9 November

Light rain. High 51°, low 49°.

Pressure30.21 inHg

Wind6.7 mph N

Humidity87%

Visibility—

Dew point46°

Tue, 1059° / 47°

59 °

Lower Merion, Tuesday, 10 November

Clear. High 59°, low 47°.

Pressure30.18 inHg

Wind5.4 mph SW

Humidity69%

Visibility—

Dew point43°

Wed, 1162° / 48°

62 °

Lower Merion, Wednesday, 11 November

Clear. High 62°, low 48°.

Pressure29.97 inHg

Wind11.2 mph SW

Humidity62%

Visibility—

Dew point42°

Thu, 1254° / 48°

0.24

54 °

Lower Merion, Thursday, 12 November

Rain. High 54°, low 48°.

Pressure29.59 inHg

Wind15.2 mph W

Humidity64%

Visibility—

Dew point37°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 1352° / 38°

0.15

52 °

Lower Merion, Friday, 13 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.15 in

Chance of precipitation37%

Record high70° (1964)

Record low22° (2019)

Sat, 1452° / 38°

0.07

52 °

Lower Merion, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.07 in

Chance of precipitation20%

Record high70° (1993)

Record low24° (1986)

Sun, 1553° / 39°

0.1

53 °

Lower Merion, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.1 in

Chance of precipitation32%

Record high75° (1993)

Record low25° (1967)

Mon, 1652° / 38°

0.13

52 °

Lower Merion, Monday, 16 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.13 in

Chance of precipitation30%

Record high72° (2005)

Record low22° (1967)

Tue, 1751° / 37°

0.09

51 °

Lower Merion, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.09 in

Chance of precipitation27%

Record high68° (1987)

Record low26° (1967)

Wed, 1852° / 37°

0.07

52 °

Lower Merion, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.07 in

Chance of precipitation27%

Record high68° (1963)

Record low26° (2014)

Thu, 1951° / 38°

0.09

51 °

Lower Merion, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high51°

Average low38°

Average precipitation0.09 in

Chance of precipitation25%

Record high67° (2016)

Record low22° (2014)

Fri, 2052° / 37°

0.08

52 °

Lower Merion, Friday, 20 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.08 in

Chance of precipitation25%

Record high73° (1985)

Record low26° (1984)

Sat, 2151° / 37°

0.1

51 °

Lower Merion, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.1 in

Chance of precipitation27%

Record high69° (1991)

Record low21° (1987)

Sun, 2249° / 37°

0.11

49 °

Lower Merion, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high49°

Average low37°

Average precipitation0.11 in

Chance of precipitation33%

Record high69° (2007)

Record low19° (2018)

Mon, 2349° / 35°

0.07

49 °

Lower Merion, Monday, 23 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.07 in

Chance of precipitation20%

Record high68° (1979)

Record low16° (2018)

Tue, 2450° / 36°

0.1

50 °

Lower Merion, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.1 in

Chance of precipitation27%

Record high69° (1979)

Record low15° (1989)

Wed, 2550° / 36°

0.13

50 °

Lower Merion, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.13 in

Chance of precipitation33%

Record high70° (1979)

Record low19° (1989)

Thu, 2651° / 37°

0.17

51 °

Lower Merion, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.17 in

Chance of precipitation42%

Record high66° (1999)

Record low25° (2005)

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.