Weather in West Derry, PA
West Derry, Tuesday, 10 November, 06:48
Clear. Feels like 31°. High 64°, low 37°.
0
West Derry, Wednesday, 11 November
Overcast. High 65°, low 41°.
0.12
West Derry, Thursday, 12 November
Light rain. High 47°, low 40°.
0West Derry, Friday, 13 November
Overcast. High 41°, low 34°.
0.04West Derry, Saturday, 14 November
Light rain. High 41°, low 32°.
0West Derry, Sunday, 15 November
Overcast. High 42°, low 33°.
0West Derry, Monday, 16 November
Overcast. High 45°, low 29°.
0
West Derry, Tuesday, 17 November
Clear. High 49°, low 31°.
0West Derry, Wednesday, 18 November
Clear. High 51°, low 31°.
0West Derry, Thursday, 19 November
Overcast. High 55°, low 34°.
0West Derry, Friday, 20 November
Overcast. High 57°, low 39°.
0.31West Derry, Saturday, 21 November
Rain. High 57°, low 46°.
0.45West Derry, Sunday, 22 November
Rain. High 58°, low 48°.
0.67West Derry, Monday, 23 November
Rain. High 60°, low 46°.
0.08
West Derry, Tuesday, 24 November
Snow. High 45°, low 33°.
0.07West Derry, Wednesday, 25 November
Light snow. High 34°, low 23°.
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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