As of 15:20 EDT

Weather in Heidelberg, PA

82°Current weather

Heidelberg, Saturday, 8 August, 15:20

Partly cloudy. Feels like 90°. High 85°, low 69°.

Pressure30.03 inHg
Wind3 mph SW
Humidity81%
Visibility6.2 mi
Dew point75°

Monthly outlook for Heidelberg, PA: average high 79°, average low 62.2°. That is 0.7° below the climate normal for August. Precipitation is expected on 8 days (about 1.6 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 10 August (87.6°), the coolest 15 August (53.7°).

79°/62.2°
Average high / low
−0.7°
Below normal
8 / 7
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August79.7°80.6°-0.5°
18 August – 27 August77.7°79.8°-1.2°
28 August – 6 Septemberat normal78.7°

August records over 66 years

96.6°17 August 1988All-time high
45°29 August 1982All-time low

Climate normals and records are computed from the nearest reference point — Pittsburgh (7 mi).

Sun, 0985° / 68°0.02Light rain
85 °Light rain

Heidelberg, Sunday, 9 August

Light rain. High 85°, low 68°.

Pressure30.06 inHg
Wind5.2 mph SW
Humidity50%
Visibility6.2 mi
Dew point60°
Mon, 1088° / 68°0.34Rain
88 °Rain

Heidelberg, Monday, 10 August

Rain. High 88°, low 68°.

Pressure30.03 inHg
Wind9.1 mph S
Humidity86%
Visibility6.2 mi
Dew point71°
Tue, 1185° / 66°0.41Rain
85 °Rain

Heidelberg, Tuesday, 11 August

Rain. High 85°, low 66°.

Pressure29.97 inHg
Wind7.6 mph W
Humidity67%
Visibility6.2 mi
Dew point68°
Wed, 1273° / 66°0.15Light rain
73 °Light rain

Heidelberg, Wednesday, 12 August

Light rain. High 73°, low 66°.

Pressure29.83 inHg
Wind7.9 mph SW
Humidity94%
Visibility6.2 mi
Dew point70°
Thu, 1375° / 65°0.07Light rain
75 °Light rain

Heidelberg, Thursday, 13 August

Light rain. High 75°, low 65°.

Pressure29.88 inHg
Wind9.3 mph N
Humidity70%
Visibility
Dew point63°
Fri, 1474° / 58°0Clear
74 °Clear

Heidelberg, Friday, 14 August

Clear. High 74°, low 58°.

Pressure30.03 inHg
Wind8.1 mph NW
Humidity43%
Visibility
Dew point49°
Sat, 1573° / 54°0Partly cloudy
73 °Partly cloudy

Heidelberg, Saturday, 15 August

Partly cloudy. High 73°, low 54°.

Pressure30.27 inHg
Wind7.9 mph N
Humidity41%
Visibility
Dew point46°
Sun, 1677° / 55°0Partly cloudy
77 °Partly cloudy

Heidelberg, Sunday, 16 August

Partly cloudy. High 77°, low 55°.

Pressure30.27 inHg
Wind4.9 mph E
Humidity40%
Visibility
Dew point48°
Mon, 1782° / 59°0Overcast
82 °Overcast

Heidelberg, Monday, 17 August

Overcast. High 82°, low 59°.

Pressure30.12 inHg
Wind6 mph SW
Humidity43%
Visibility
Dew point53°
Tue, 1876° / 66°0.22Light rain
76 °Light rain

Heidelberg, Tuesday, 18 August

Light rain. High 76°, low 66°.

Pressure29.97 inHg
Wind4.2 mph NW
Humidity89%
Visibility
Dew point67°
Wed, 1980° / 59°0Partly cloudy
80 °Partly cloudy

Heidelberg, Wednesday, 19 August

Partly cloudy. High 80°, low 59°.

Pressure29.97 inHg
Wind6.9 mph N
Humidity44%
Visibility
Dew point53°
Thu, 2080° / 63°0.06Light rain
80 °Light rain

Heidelberg, Thursday, 20 August

Light rain. High 80°, low 63°.

Pressure29.94 inHg
Wind4.8 mph E
Humidity51%
Visibility
Dew point58°
Fri, 2178° / 65°0.07Light rain
78 °Light rain

Heidelberg, Friday, 21 August

Light rain. High 78°, low 65°.

Pressure29.83 inHg
Wind7.8 mph NW
Humidity73%
Visibility
Dew point67°
Sat, 2281° / 61°0.03Light rain
81 °Light rain

Heidelberg, Saturday, 22 August

Light rain. High 81°, low 61°.

Pressure29.83 inHg
Wind8.6 mph N
Humidity47%
Visibility
Dew point57°
Sun, 2371° / 54°0Clear
71 °Clear

Heidelberg, Sunday, 23 August

Clear. High 71°, low 54°.

Pressure30.12 inHg
Wind8.9 mph N
Humidity39%
Visibility
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 62°0.05Climate normal
79 °Climate normal

Heidelberg, Monday, 24 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high92° (2007)
Record low49° (1971)
Tue, 2580° / 62°0.09Climate normal
80 °Climate normal

Heidelberg, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation28%
Record high90° (1993)
Record low51° (1977)
Wed, 2680° / 62°0.09Climate normal
80 °Climate normal

Heidelberg, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation32%
Record high93° (1993)
Record low53° (1963)
Thu, 2781° / 64°0.13Climate normal
81 °Climate normal

Heidelberg, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.13 in
Chance of precipitation43%
Record high93° (2024)
Record low52° (1969)
Fri, 2880° / 64°0.19Climate normal
80 °Climate normal

Heidelberg, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.19 in
Chance of precipitation40%
Record high92° (1973)
Record low50° (1968)
Sat, 2980° / 63°0.12Climate normal
80 °Climate normal

Heidelberg, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high91° (1991)
Record low45° (1982)
Sun, 3079° / 62°0.14Climate normal
79 °Climate normal

Heidelberg, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.14 in
Chance of precipitation28%
Record high92° (1993)
Record low47° (1986)
Mon, 3178° / 62°0.16Climate normal
78 °Climate normal

Heidelberg, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.16 in
Chance of precipitation37%
Record high93° (2012)
Record low51° (1976)
Tue, 0178° / 61°0.11Climate normal
78 °Climate normal

Heidelberg, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation23%
Record high91° (2010)
Record low47° (1967)
Wed, 0279° / 61°0.13Climate normal
79 °Climate normal

Heidelberg, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°
Average low61°
Average precipitation0.13 in
Chance of precipitation42%
Record high93° (2010)
Record low49° (1967)
Thu, 0379° / 61°0.1Climate normal
79 °Climate normal

Heidelberg, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°
Average low61°
Average precipitation0.1 in
Chance of precipitation35%
Record high94° (2011)
Record low48° (1967)
Fri, 0478° / 62°0.09Climate normal
78 °Climate normal

Heidelberg, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.09 in
Chance of precipitation35%
Record high91° (2023)
Record low48° (1997)
Sat, 0578° / 60°0.12Climate normal
78 °Climate normal

Heidelberg, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low60°
Average precipitation0.12 in
Chance of precipitation33%
Record high91° (2023)
Record low48° (1997)
Sun, 0678° / 60°0.14Climate normal
78 °Climate normal

Heidelberg, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high78°
Average low60°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (2023)
Record low46° (1984)

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 Heidelberg, 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 Heidelberg, 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.