As of 22:12 EDT

Weather in Allegheny, PA

40°

Allegheny, Saturday, 31 October, 22:12

Overcast. Feels like 37°. High 55°, low 35°.

Pressure30.47 inHg

Wind4.2 mph E

Humidity83%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Monthly outlook for Allegheny, PA: average high 52°, average low 41.8°. That is 1.1° above the climate normal for October. Precipitation is expected on 11 days (about 4.0 inches), against a normal of 7 days and 2.0 inches. The warmest day looks like 4 November (70°), the coolest 15 November (32.4°).

52°/41.8°

Average high / low

+1.1°

Above normal

11 / 7

Wet days / normal

4.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
31 October – 9 November	57.7°	52°	+3.2°
10 November – 19 November	42.6°	46.5°	-2.2°
20 November – 29 November	at normal	43.4°	—

October records over 66 years

84.2°1 October 2019All-time high

22.6°20 October 1972All-time low

Climate normals and records are computed from the nearest reference point — Tidioute (11 mi).

Sun, 0165° / 40°

65 °

Allegheny, Sunday, 1 November

Overcast. High 65°, low 40°.

Pressure30.45 inHg

Wind6.3 mph SE

Humidity45%

Visibility6.2 mi

Dew point38°

Mon, 0261° / 46°

0.02

61 °

Allegheny, Monday, 2 November

Light rain. High 61°, low 46°.

Pressure30.36 inHg

Wind5.9 mph S

Humidity65%

Visibility6.2 mi

Dew point43°

Tue, 0366° / 49°

66 °

Allegheny, Tuesday, 3 November

Overcast. High 66°, low 49°.

Pressure30.21 inHg

Wind7 mph S

Humidity58%

Visibility6.2 mi

Dew point45°

Wed, 0470° / 52°

0.07

70 °

Allegheny, Wednesday, 4 November

Light rain. High 70°, low 52°.

Pressure30.00 inHg

Wind9.1 mph S

Humidity61%

Visibility6.2 mi

Dew point51°

Thu, 0564° / 53°

0.46

64 °

Allegheny, Thursday, 5 November

Rain. High 64°, low 53°.

Pressure29.77 inHg

Wind12.2 mph S

Humidity69%

Visibility—

Dew point53°

Fri, 0656° / 46°

0.4

56 °

Allegheny, Friday, 6 November

Rain. High 56°, low 46°.

Pressure29.77 inHg

Wind6.8 mph S

Humidity78%

Visibility—

Dew point48°

Sat, 0752° / 46°

0.06

52 °

Allegheny, Saturday, 7 November

Light rain. High 52°, low 46°.

Pressure29.56 inHg

Wind9.3 mph SW

Humidity89%

Visibility—

Dew point48°

Sun, 0845° / 41°

0.29

45 °

Allegheny, Sunday, 8 November

Light rain. High 45°, low 41°.

Pressure29.29 inHg

Wind11.7 mph NW

Humidity92%

Visibility—

Dew point41°

Mon, 0942° / 40°

0.57

42 °

Allegheny, Monday, 9 November

Rain. High 42°, low 40°.

Pressure29.44 inHg

Wind14.2 mph W

Humidity96%

Visibility—

Dew point40°

Tue, 1042° / 40°

0.37

42 °

Allegheny, Tuesday, 10 November

Rain. High 42°, low 40°.

Pressure29.71 inHg

Wind14.5 mph W

Humidity91%

Visibility—

Dew point40°

Wed, 1141° / 35°

0.16

41 °

Allegheny, Wednesday, 11 November

Snow. High 41°, low 35°.

Pressure29.88 inHg

Wind12.7 mph W

Humidity86%

Visibility—

Dew point37°

Thu, 1244° / 37°

0.01

44 °

Allegheny, Thursday, 12 November

Light rain. High 44°, low 37°.

Pressure30.06 inHg

Wind6.5 mph W

Humidity72%

Visibility—

Dew point35°

Fri, 1344° / 35°

0.31

44 °

Allegheny, Friday, 13 November

Rain. High 44°, low 35°.

Pressure29.85 inHg

Wind6.8 mph E

Humidity73%

Visibility—

Dew point35°

Sat, 1444° / 40°

1.19

44 °

Allegheny, Saturday, 14 November

Rain. High 44°, low 40°.

Pressure29.35 inHg

Wind17.5 mph N

Humidity95%

Visibility—

Dew point42°

Sun, 1539° / 32°

0.05

39 °

Allegheny, Sunday, 15 November

Light rain. High 39°, low 32°.

Pressure29.83 inHg

Wind18.3 mph N

Humidity87%

Visibility—

Dew point35°

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

Mon, 1646° / 33°

0.17

46 °

Allegheny, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.17 in

Chance of precipitation47%

Record high63° (1988)

Record low8° (1967)

Tue, 1745° / 33°

0.15

45 °

Allegheny, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high45°

Average low33°

Average precipitation0.15 in

Chance of precipitation40%

Record high61° (2021)

Record low19° (1997)

Wed, 1846° / 33°

0.08

46 °

Allegheny, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.08 in

Chance of precipitation32%

Record high66° (2016)

Record low8° (2014)

Thu, 1946° / 33°

0.11

46 °

Allegheny, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.11 in

Chance of precipitation35%

Record high68° (1985)

Record low5° (2014)

Fri, 2045° / 33°

0.13

45 °

Allegheny, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°

Average low33°

Average precipitation0.13 in

Chance of precipitation53%

Record high66° (1991)

Record low15° (1986)

Sat, 2143° / 31°

0.11

43 °

Allegheny, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.11 in

Chance of precipitation55%

Record high59° (1979)

Record low11° (2014)

Sun, 2243° / 31°

0.12

43 °

Allegheny, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.12 in

Chance of precipitation47%

Record high64° (1999)

Record low7° (2018)

Mon, 2344° / 30°

0.07

44 °

Allegheny, Monday, 23 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.07 in

Chance of precipitation35%

Record high64° (1999)

Record low6° (2000)

Tue, 2444° / 30°

0.12

44 °

Allegheny, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.12 in

Chance of precipitation48%

Record high62° (2014)

Record low3° (2000)

Wed, 2544° / 31°

0.13

44 °

Allegheny, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.13 in

Chance of precipitation48%

Record high60° (1987)

Record low13° (2005)

Thu, 2644° / 32°

0.22

44 °

Allegheny, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.22 in

Chance of precipitation52%

Record high60° (2006)

Record low18° (2005)

Fri, 2743° / 32°

0.15

43 °

Allegheny, Friday, 27 November

Climate normal for this date — 60-year average.

Average high43°

Average low32°

Average precipitation0.15 in

Chance of precipitation60%

Record high67° (1990)

Record low17° (1991)

Sat, 2842° / 31°

0.23

42 °

Allegheny, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.23 in

Chance of precipitation70%

Record high63° (1990)

Record low15° (1982)

Sun, 2941° / 29°

0.11

41 °

Allegheny, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.11 in

Chance of precipitation38%

Record high60° (2005)

Record low11° (1976)

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 Allegheny, 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 Allegheny, 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.