Weather in Heidelberg, PA
Heidelberg, Friday, 9 October, 21:37
Overcast. Feels like 55°. High 71°, low 43°.
Monthly outlook for Heidelberg, PA: average high 65.6°, average low 49.4°. That is 2.3° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 13 October (79.1°), the coolest 19 October (34.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 67.8° | 62.8° | +2.8° |
| 19 October – 28 October | 62.1° | 58.5° | +2° |
| 29 October – 7 November | at normal | 55.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mount Lebanon (3 mi).
0Heidelberg, Saturday, 10 October
Overcast. High 72°, low 47°.
1.34
Heidelberg, Sunday, 11 October
Heavy rain. High 71°, low 50°.
0Heidelberg, Monday, 12 October
Light rain. High 73°, low 61°.
0
Heidelberg, Tuesday, 13 October
Clear. High 79°, low 62°.
0Heidelberg, Wednesday, 14 October
Overcast. High 69°, low 58°.
0.11Heidelberg, Thursday, 15 October
Light rain. High 64°, low 53°.
0.17Heidelberg, Friday, 16 October
Light rain. High 69°, low 59°.
0.02Heidelberg, Saturday, 17 October
Light rain. High 60°, low 42°.
0.01Heidelberg, Sunday, 18 October
Light rain. High 49°, low 36°.
0Heidelberg, Monday, 19 October
Clear. High 56°, low 34°.
0
Heidelberg, Tuesday, 20 October
Partly cloudy. High 62°, low 40°.
0Heidelberg, Wednesday, 21 October
Partly cloudy. High 64°, low 43°.
0.26Heidelberg, Thursday, 22 October
Rain. High 64°, low 51°.
0.52Heidelberg, Friday, 23 October
Rain. High 63°, low 56°.
0Heidelberg, Saturday, 24 October
Overcast. High 64°, low 56°.
0.13Heidelberg, Sunday, 25 October
Climate normal for this date — 60-year average.
0.1Heidelberg, Monday, 26 October
Climate normal for this date — 60-year average.
0.11
Heidelberg, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Heidelberg, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.17Heidelberg, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Heidelberg, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Heidelberg, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Heidelberg, Sunday, 1 November
Climate normal for this date — 60-year average.
0.14Heidelberg, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Heidelberg, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Heidelberg, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Heidelberg, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Heidelberg, Friday, 6 November
Climate normal for this date — 60-year average.
0.13Heidelberg, Saturday, 7 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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