Weather in West Derry, PA
West Derry, Sunday, 15 November, 08:37
Fog. Feels like 34°. High 44°, low 38°.
0
West Derry, Monday, 16 November
Overcast. High 48°, low 37°.
0
West Derry, Tuesday, 17 November
Clear. High 52°, low 31°.
0West Derry, Wednesday, 18 November
Clear. High 55°, low 33°.
0West Derry, Thursday, 19 November
Overcast. High 59°, low 34°.
0West Derry, Friday, 20 November
Clear. High 57°, low 40°.
0West Derry, Saturday, 21 November
Overcast. High 59°, low 39°.
0West Derry, Sunday, 22 November
Overcast. High 57°, low 42°.
0West Derry, Monday, 23 November
Overcast. High 43°, low 37°.
0West Derry, Tuesday, 24 November
Clear. High 43°, low 28°.
0West Derry, Wednesday, 25 November
Clear. High 51°, low 31°.
0West Derry, Thursday, 26 November
Overcast. High 56°, low 34°.
0.13
West Derry, Friday, 27 November
Light rain. High 54°, low 38°.
0.12West Derry, Saturday, 28 November
Light rain. High 53°, low 44°.
0West Derry, Sunday, 29 November
Overcast. High 43°, low 32°.
0West Derry, Monday, 30 November
Overcast. High 43°, low 30°.
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 West Derry, 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 West Derry, 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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