As of 05:19 EDT

Weather in Merrian, PA

43°Current weather

Merrian, Saturday, 10 October, 05:19

Overcast. Feels like 41°. High 69°, low 42°.

Pressure30.33 inHg
Wind3.3 mph NE
Humidity90%
Visibility6.2 mi
Dew point39°

Monthly outlook for Merrian, PA: average high 59.9°, average low 43.5°. That is 0.1° above the climate normal for October. Precipitation is expected on 5 days (about 3.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (74.5°), the coolest 20 October (28.6°).

59.9°/43.5°
Average high / low
+0.1°
Above normal
5 / 5
Wet days / normal
3.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October61.9°60.7°+0.7°
20 October – 29 October56.5°57.1°-0.4°
30 October – 8 Novemberat normal54°—

October records over 66 years

85.1°8 October 2007All-time high
23.5°28 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Mount Carmel (1 mi).

Sun, 1159° / 45°1.57Heavy rain
59 °Heavy rain

Merrian, Sunday, 11 October

Heavy rain. High 59°, low 45°.

Pressure30.21 inHg
Wind11.3 mph E
Humidity97%
Visibility1.0 mi
Dew point55°
Mon, 1268° / 55°0.03Light rain
68 °Light rain

Merrian, Monday, 12 October

Light rain. High 68°, low 55°.

Pressure29.83 inHg
Wind10.3 mph N
Humidity72%
Visibility6.2 mi
Dew point57°
Tue, 1374° / 53°0Overcast
74 °Overcast

Merrian, Tuesday, 13 October

Overcast. High 74°, low 53°.

Pressure29.88 inHg
Wind8.9 mph S
Humidity62%
Visibility6.2 mi
Dew point59°
Wed, 1473° / 60°0.02Light rain
73 °Light rain

Merrian, Wednesday, 14 October

Light rain. High 73°, low 60°.

Pressure29.88 inHg
Wind11.6 mph W
Humidity69%
Visibility—
Dew point60°
Thu, 1556° / 48°0.01Light rain
56 °Light rain

Merrian, Thursday, 15 October

Light rain. High 56°, low 48°.

Pressure30.27 inHg
Wind13.7 mph N
Humidity54%
Visibility—
Dew point38°
Fri, 1661° / 47°0.78Rain
61 °Rain

Merrian, Friday, 16 October

Rain. High 61°, low 47°.

Pressure30.03 inHg
Wind13.2 mph SE
Humidity98%
Visibility—
Dew point51°
Sat, 1759° / 50°0.24Rain
59 °Rain

Merrian, Saturday, 17 October

Rain. High 59°, low 50°.

Pressure29.94 inHg
Wind7.4 mph N
Humidity93%
Visibility—
Dew point57°
Sun, 1854° / 40°0.37Rain
54 °Rain

Merrian, Sunday, 18 October

Rain. High 54°, low 40°.

Pressure29.97 inHg
Wind13 mph NW
Humidity79%
Visibility—
Dew point44°
Mon, 1946° / 33°0.01Light rain
46 °Light rain

Merrian, Monday, 19 October

Light rain. High 46°, low 33°.

Pressure30.24 inHg
Wind13.3 mph NW
Humidity63%
Visibility—
Dew point29°
Tue, 2053° / 29°0Clear
53 °Clear

Merrian, Tuesday, 20 October

Clear. High 53°, low 29°.

Pressure30.42 inHg
Wind7.6 mph N
Humidity45%
Visibility—
Dew point22°
Wed, 2159° / 34°0Clear
59 °Clear

Merrian, Wednesday, 21 October

Clear. High 59°, low 34°.

Pressure30.47 inHg
Wind2.8 mph N
Humidity44%
Visibility—
Dew point28°
Thu, 2258° / 38°0Clear
58 °Clear

Merrian, Thursday, 22 October

Clear. High 58°, low 38°.

Pressure30.47 inHg
Wind5.4 mph S
Humidity50%
Visibility—
Dew point34°
Fri, 2357° / 38°0Mostly clear
57 °Mostly clear

Merrian, Friday, 23 October

Mostly clear. High 57°, low 38°.

Pressure30.36 inHg
Wind7.2 mph S
Humidity72%
Visibility—
Dew point42°
Sat, 2455° / 41°0Overcast
55 °Overcast

Merrian, Saturday, 24 October

Overcast. High 55°, low 41°.

Pressure30.24 inHg
Wind5.2 mph S
Humidity74%
Visibility—
Dew point41°
Sun, 2557° / 41°0.07Light rain
57 °Light rain

Merrian, Sunday, 25 October

Light rain. High 57°, low 41°.

Pressure29.91 inHg
Wind9.2 mph S
Humidity68%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2656° / 42°0.1Climate normal
56 °Climate normal

Merrian, Monday, 26 October

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.1 in
Chance of precipitation33%
Record high76° (1963)
Record low30° (1960)
Tue, 2756° / 42°0.17Climate normal
56 °Climate normal

Merrian, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.17 in
Chance of precipitation30%
Record high76° (1963)
Record low28° (1976)
Wed, 2856° / 41°0.12Climate normal
56 °Climate normal

Merrian, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation28%
Record high76° (1984)
Record low24° (1976)
Thu, 2955° / 40°0.18Climate normal
55 °Climate normal

Merrian, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.18 in
Chance of precipitation28%
Record high70° (1971)
Record low27° (1965)
Fri, 3055° / 38°0.11Climate normal
55 °Climate normal

Merrian, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°
Average low38°
Average precipitation0.11 in
Chance of precipitation27%
Record high72° (2024)
Record low27° (1962)
Sat, 3155° / 40°0.07Climate normal
55 °Climate normal

Merrian, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (2024)
Record low25° (1988)
Sun, 0156° / 41°0.08Climate normal
56 °Climate normal

Merrian, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation32%
Record high73° (1974)
Record low20° (2002)
Mon, 0256° / 42°0.14Climate normal
56 °Climate normal

Merrian, Monday, 2 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.14 in
Chance of precipitation28%
Record high74° (1982)
Record low24° (2002)
Tue, 0356° / 40°0.09Climate normal
56 °Climate normal

Merrian, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.09 in
Chance of precipitation35%
Record high73° (2003)
Record low27° (2002)
Wed, 0454° / 39°0.08Climate normal
54 °Climate normal

Merrian, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation22%
Record high71° (2003)
Record low25° (1962)
Thu, 0553° / 39°0.1Climate normal
53 °Climate normal

Merrian, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation32%
Record high70° (2022)
Record low18° (1962)
Fri, 0652° / 39°0.07Climate normal
52 °Climate normal

Merrian, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high75° (2024)
Record low25° (1967)
Sat, 0751° / 38°0.07Climate normal
51 °Climate normal

Merrian, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation32%
Record high69° (1975)
Record low24° (1962)
Sun, 0852° / 37°0.17Climate normal
52 °Climate normal

Merrian, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.17 in
Chance of precipitation25%
Record high70° (2020)
Record low24° (1960)

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 Merrian, 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 Merrian, 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.