As of 22:41 EDT

Weather in Lower Merion, PA

51°

Lower Merion, Sunday, 25 October, 22:41

Clear. Feels like 49°. High 65°, low 34°.

Pressure30.42 inHg

Wind4.6 mph SW

Humidity72%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Lower Merion, PA: average high 58.5°, average low 43.8°. That is 0.1° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 30 October (72.7°), the coolest 25 October (34°).

58.5°/43.8°

Average high / low

−0.1°

Below normal

4 / 4

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
25 October – 3 November	64.1°	59.9°	+2.3°
4 November – 13 November	49.1°	55.5°	-3.5°
14 November – 23 November	at normal	51.4°	—

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).

Mon, 2668° / 38°

68 °

Lower Merion, Monday, 26 October

Clear. High 68°, low 38°.

Pressure30.30 inHg

Wind5.7 mph W

Humidity53%

Visibility6.2 mi

Dew point46°

Tue, 2764° / 45°

64 °

Lower Merion, Tuesday, 27 October

Clear. High 64°, low 45°.

Pressure30.36 inHg

Wind5.7 mph NE

Humidity53%

Visibility6.2 mi

Dew point42°

Wed, 2863° / 42°

63 °

Lower Merion, Wednesday, 28 October

Clear. High 63°, low 42°.

Pressure30.45 inHg

Wind3.9 mph SE

Humidity55%

Visibility6.2 mi

Dew point43°

Thu, 2967° / 50°

67 °

Lower Merion, Thursday, 29 October

Overcast. High 67°, low 50°.

Pressure30.27 inHg

Wind5.7 mph SW

Humidity65%

Visibility6.2 mi

Dew point51°

Fri, 3073° / 53°

73 °

Lower Merion, Friday, 30 October

Clear. High 73°, low 53°.

Pressure30.12 inHg

Wind8 mph NW

Humidity56%

Visibility—

Dew point49°

Sat, 3163° / 48°

63 °

Lower Merion, Saturday, 31 October

Overcast. High 63°, low 48°.

Pressure30.33 inHg

Wind5 mph NE

Humidity52%

Visibility—

Dew point39°

Sun, 0161° / 49°

61 °

Lower Merion, Sunday, 1 November

Overcast. High 61°, low 49°.

Pressure30.39 inHg

Wind5.6 mph S

Humidity44%

Visibility—

Dew point34°

Mon, 0258° / 54°

0.41

58 °

Lower Merion, Monday, 2 November

Rain. High 58°, low 54°.

Pressure30.06 inHg

Wind14.5 mph E

Humidity86%

Visibility—

Dew point51°

Tue, 0358° / 51°

0.08

58 °

Lower Merion, Tuesday, 3 November

Light rain. High 58°, low 51°.

Pressure29.71 inHg

Wind8.2 mph N

Humidity89%

Visibility—

Dew point52°

Wed, 0449° / 45°

0.01

49 °

Lower Merion, Wednesday, 4 November

Light rain. High 49°, low 45°.

Pressure30.15 inHg

Wind8.3 mph NE

Humidity66%

Visibility—

Dew point35°

Thu, 0547° / 39°

47 °

Lower Merion, Thursday, 5 November

Overcast. High 47°, low 39°.

Pressure30.42 inHg

Wind10.1 mph NE

Humidity37%

Visibility—

Dew point18°

Fri, 0648° / 37°

48 °

Lower Merion, Friday, 6 November

Clear. High 48°, low 37°.

Pressure30.39 inHg

Wind7.2 mph N

Humidity32%

Visibility—

Dew point15°

Sat, 0753° / 38°

53 °

Lower Merion, Saturday, 7 November

Clear. High 53°, low 38°.

Pressure30.30 inHg

Wind5.1 mph SW

Humidity32%

Visibility—

Dew point17°

Sun, 0848° / 42°

0.07

48 °

Lower Merion, Sunday, 8 November

Light rain. High 48°, low 42°.

Pressure30.06 inHg

Wind10.1 mph SW

Humidity48%

Visibility—

Dew point28°

Mon, 0949° / 36°

0.05

49 °

Lower Merion, Monday, 9 November

Light rain. High 49°, low 36°.

Pressure29.94 inHg

Wind16.8 mph NW

Humidity65%

Visibility—

Dew point34°

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

Tue, 1056° / 41°

0.16

56 °

Lower Merion, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°

Average low41°

Average precipitation0.16 in

Chance of precipitation35%

Record high72° (2020)

Record low25° (2017)

Wed, 1155° / 41°

0.12

55 °

Lower Merion, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°

Average low41°

Average precipitation0.12 in

Chance of precipitation32%

Record high71° (2006)

Record low21° (2017)

Thu, 1253° / 40°

0.19

53 °

Lower Merion, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.19 in

Chance of precipitation38%

Record high68° (1964)

Record low28° (2019)

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)

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.