Weather in West Derry, PA
West Derry, Thursday, 22 October, 05:58
Clear. Feels like 34°. High 64°, low 34°.
0
West Derry, Friday, 23 October
Partly cloudy. High 61°, low 39°.
0
West Derry, Saturday, 24 October
Clear. High 62°, low 39°.
0West Derry, Sunday, 25 October
Clear. High 62°, low 36°.
0West Derry, Monday, 26 October
Clear. High 63°, low 38°.
0West Derry, Tuesday, 27 October
Clear. High 62°, low 43°.
0.06
West Derry, Wednesday, 28 October
Light rain. High 64°, low 47°.
0.02West Derry, Thursday, 29 October
Light rain. High 64°, low 54°.
0
West Derry, Friday, 30 October
Overcast. High 65°, low 50°.
0.01West Derry, Saturday, 31 October
Light rain. High 70°, low 51°.
0.06West Derry, Sunday, 1 November
Light rain. High 57°, low 55°.
0.07West Derry, Monday, 2 November
Light rain. High 54°, low 45°.
0West Derry, Tuesday, 3 November
Overcast. High 57°, low 41°.
0West Derry, Wednesday, 4 November
Overcast. High 53°, low 41°.
0West Derry, Thursday, 5 November
Overcast. High 47°, low 34°.
0.05West Derry, Friday, 6 November
Light rain. High 47°, low 42°.
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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