Weather in Valley Forge, PA
Valley Forge, Thursday, 15 October, 09:47
Clear. Feels like 58°. High 68°, low 58°.
Monthly outlook for Valley Forge, PA: average high 62.7°, average low 43.8°. That is 0.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 16 October (84.7°), the coolest 25 October (32.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 64.1° | 62.7° | +0.8° |
| 25 October – 3 November | 60.5° | 59.6° | +0.5° |
| 4 November – 13 November | at normal | 55.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — North York (1 mi).
0.08
Valley Forge, Friday, 16 October
Light rain. High 85°, low 63°.
0Valley Forge, Saturday, 17 October
Light rain. High 63°, low 44°.
0Valley Forge, Sunday, 18 October
Clear. High 58°, low 40°.
0Valley Forge, Monday, 19 October
Clear. High 61°, low 40°.
0Valley Forge, Tuesday, 20 October
Clear. High 64°, low 40°.
0
Valley Forge, Wednesday, 21 October
Overcast. High 65°, low 47°.
0Valley Forge, Thursday, 22 October
Clear. High 64°, low 43°.
0Valley Forge, Friday, 23 October
Overcast. High 61°, low 43°.
0
Valley Forge, Saturday, 24 October
Partly cloudy. High 52°, low 33°.
0Valley Forge, Sunday, 25 October
Overcast. High 53°, low 33°.
0Valley Forge, Monday, 26 October
Clear. High 61°, low 37°.
0Valley Forge, Tuesday, 27 October
Overcast. High 60°, low 38°.
0Valley Forge, Wednesday, 28 October
Overcast. High 64°, low 49°.
0.1Valley Forge, Thursday, 29 October
Light rain. High 58°, low 43°.
0Valley Forge, Friday, 30 October
Light rain. High 66°, low 49°.
0.06Valley Forge, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Valley Forge, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Valley Forge, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Valley Forge, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Valley Forge, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Valley Forge, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Valley Forge, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Valley Forge, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Valley Forge, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Valley Forge, Monday, 9 November
Climate normal for this date — 60-year average.
0.16
Valley Forge, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Valley Forge, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Valley Forge, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Valley Forge, Friday, 13 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 Valley Forge, 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 Valley Forge, 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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