Weather in Chambersburg, PA
Chambersburg, Wednesday, 28 October, 14:12
Overcast. Feels like 66°. High 67°, low 44°.
Monthly outlook for Chambersburg, PA: average high 58.8°, average low 43.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 6 days (about 6.5 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (72.9°), the coolest 9 November (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 64.1° | 57.6° | +3.6° |
| 7 November – 16 November | 50° | 52.4° | -1.3° |
| 17 November – 26 November | at normal | 48.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Shippensburg University (11 mi).
0
Chambersburg, Thursday, 29 October
Clear. High 73°, low 43°.
0Chambersburg, Friday, 30 October
Clear. High 67°, low 48°.
0Chambersburg, Saturday, 31 October
Overcast. High 59°, low 42°.
0Chambersburg, Sunday, 1 November
Overcast. High 64°, low 47°.
0Chambersburg, Monday, 2 November
Clear. High 69°, low 44°.
0.26
Chambersburg, Tuesday, 3 November
Rain. High 62°, low 50°.
0.67Chambersburg, Wednesday, 4 November
Rain. High 53°, low 48°.
1.98Chambersburg, Thursday, 5 November
Rain. High 65°, low 58°.
0.58Chambersburg, Friday, 6 November
Rain. High 61°, low 46°.
0Chambersburg, Saturday, 7 November
Overcast. High 51°, low 39°.
0Chambersburg, Sunday, 8 November
Clear. High 48°, low 34°.
0Chambersburg, Monday, 9 November
Clear. High 50°, low 32°.
0Chambersburg, Tuesday, 10 November
Overcast. High 49°, low 33°.
0.32Chambersburg, Wednesday, 11 November
Light rain. High 50°, low 42°.
2.72Chambersburg, Thursday, 12 November
Heavy rain. High 51°, low 47°.
0.07
Chambersburg, Friday, 13 November
Climate normal for this date — 60-year average.
0.07
Chambersburg, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12
Chambersburg, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Chambersburg, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Chambersburg, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Chambersburg, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Chambersburg, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Chambersburg, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Chambersburg, Saturday, 21 November
Climate normal for this date — 60-year average.
0.1Chambersburg, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Chambersburg, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Chambersburg, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.1Chambersburg, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.16Chambersburg, Thursday, 26 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 Chambersburg, 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 Chambersburg, 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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