EN
English Español

As of 01:28 EDT

Weather in Allegheny, PA

69°Current weather

Allegheny, Sunday, 9 August, 01:28

Clear. Feels like 70°. High 84°, low 68°.

Pressure30.03 inHg
Wind1 mph E
Humidity92%
Visibility6.2 mi
Dew point67°
Mon, 1085° / 63°1.21Heavy rain
85 °Heavy rain

Allegheny, Monday, 10 August

Heavy rain. High 85°, low 63°.

Pressure30.03 inHg
Wind8.2 mph SW
Humidity81%
Visibility6.2 mi
Dew point67°
Tue, 1181° / 63°0.2Rain
81 °Rain

Allegheny, Tuesday, 11 August

Rain. High 81°, low 63°.

Pressure29.97 inHg
Wind7.3 mph SW
Humidity74%
Visibility6.2 mi
Dew point67°
Wed, 1278° / 66°0.05Light rain
78 °Light rain

Allegheny, Wednesday, 12 August

Light rain. High 78°, low 66°.

Pressure29.80 inHg
Wind7.5 mph SW
Humidity92%
Visibility6.2 mi
Dew point69°
Thu, 1374° / 57°0Partly cloudy
74 °Partly cloudy

Allegheny, Thursday, 13 August

Partly cloudy. High 74°, low 57°.

Pressure29.94 inHg
Wind11.8 mph NW
Humidity39%
Visibility—
Dew point46°
Fri, 1476° / 51°0Clear
76 °Clear

Allegheny, Friday, 14 August

Clear. High 76°, low 51°.

Pressure30.06 inHg
Wind7.4 mph NW
Humidity40%
Visibility—
Dew point47°
Sat, 1576° / 52°0Clear
76 °Clear

Allegheny, Saturday, 15 August

Clear. High 76°, low 52°.

Pressure30.24 inHg
Wind8.2 mph NW
Humidity38%
Visibility—
Dew point46°
Sun, 1680° / 52°0Partly cloudy
80 °Partly cloudy

Allegheny, Sunday, 16 August

Partly cloudy. High 80°, low 52°.

Pressure30.15 inHg
Wind2.8 mph NE
Humidity38%
Visibility—
Dew point49°
Mon, 1776° / 58°0.01Light rain
76 °Light rain

Allegheny, Monday, 17 August

Light rain. High 76°, low 58°.

Pressure30.03 inHg
Wind3.9 mph W
Humidity53%
Visibility—
Dew point56°
Tue, 1884° / 57°0Clear
84 °Clear

Allegheny, Tuesday, 18 August

Clear. High 84°, low 57°.

Pressure30.00 inHg
Wind4.9 mph E
Humidity49%
Visibility—
Dew point60°
Wed, 1983° / 63°0.35Rain
83 °Rain

Allegheny, Wednesday, 19 August

Rain. High 83°, low 63°.

Pressure29.83 inHg
Wind9.2 mph SW
Humidity51%
Visibility—
Dew point60°
Thu, 2070° / 58°0.04Light rain
70 °Light rain

Allegheny, Thursday, 20 August

Light rain. High 70°, low 58°.

Pressure29.80 inHg
Wind13.7 mph NW
Humidity61%
Visibility—
Dew point55°
Fri, 2174° / 50°0Clear
74 °Clear

Allegheny, Friday, 21 August

Clear. High 74°, low 50°.

Pressure29.97 inHg
Wind9.9 mph NW
Humidity40%
Visibility—
Dew point46°
Sat, 2276° / 49°0.02Light rain
76 °Light rain

Allegheny, Saturday, 22 August

Light rain. High 76°, low 49°.

Pressure30.03 inHg
Wind5.7 mph S
Humidity33%
Visibility—
Dew point42°
Sun, 2384° / 62°0.02Light rain
84 °Light rain

Allegheny, Sunday, 23 August

Light rain. High 84°, low 62°.

Pressure29.91 inHg
Wind11.1 mph SW
Humidity79%
Visibility—
Dew point69°
Mon, 2481° / 63°0.04Light rain
81 °Light rain

Allegheny, Monday, 24 August

Light rain. High 81°, low 63°.

Pressure29.97 inHg
Wind9.8 mph NW
Humidity43%
Visibility—
Dew point54°

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.