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As of 04:15 EDT

Weather in West Derry, PA

55°Current weather

West Derry, Wednesday, 28 October, 04:15

Overcast. Feels like 54°. High 71°, low 48°.

Pressure30.30 inHg
Wind4.8 mph SE
Humidity81%
Visibility6.2 mi
Dew point48°
Thu, 2972° / 45°0Clear
72 °Clear

West Derry, Thursday, 29 October

Clear. High 72°, low 45°.

Pressure30.21 inHg
Wind8.3 mph SW
Humidity62%
Visibility6.2 mi
Dew point51°
Fri, 3061° / 44°0.02Light rain
61 °Light rain

West Derry, Friday, 30 October

Light rain. High 61°, low 44°.

Pressure30.27 inHg
Wind5.3 mph NW
Humidity64%
Visibility6.2 mi
Dew point47°
Sat, 3160° / 40°0.01Light rain
60 °Light rain

West Derry, Saturday, 31 October

Light rain. High 60°, low 40°.

Pressure30.42 inHg
Wind3 mph NE
Humidity64%
Visibility6.2 mi
Dew point43°
Sun, 0166° / 48°0Partly cloudy
66 °Partly cloudy

West Derry, Sunday, 1 November

Partly cloudy. High 66°, low 48°.

Pressure30.30 inHg
Wind6.4 mph SW
Humidity42%
Visibility—
Dew point40°
Mon, 0264° / 46°0.08Light rain
64 °Light rain

West Derry, Monday, 2 November

Light rain. High 64°, low 46°.

Pressure30.18 inHg
Wind4.1 mph E
Humidity54%
Visibility—
Dew point44°
Tue, 0358° / 54°0.08Light rain
58 °Light rain

West Derry, Tuesday, 3 November

Light rain. High 58°, low 54°.

Pressure29.91 inHg
Wind20 mph E
Humidity90%
Visibility—
Dew point54°
Wed, 0447° / 40°0.79Rain
47 °Rain

West Derry, Wednesday, 4 November

Rain. High 47°, low 40°.

Pressure30.15 inHg
Wind22.7 mph E
Humidity87%
Visibility—
Dew point37°
Thu, 0549° / 45°0.69Rain
49 °Rain

West Derry, Thursday, 5 November

Rain. High 49°, low 45°.

Pressure29.85 inHg
Wind21.3 mph E
Humidity91%
Visibility—
Dew point46°
Fri, 0648° / 45°0.05Light rain
48 °Light rain

West Derry, Friday, 6 November

Light rain. High 48°, low 45°.

Pressure29.83 inHg
Wind9.1 mph W
Humidity97%
Visibility—
Dew point46°
Sat, 0752° / 42°0.3Rain
52 °Rain

West Derry, Saturday, 7 November

Rain. High 52°, low 42°.

Pressure29.88 inHg
Wind7.5 mph SW
Humidity83%
Visibility—
Dew point45°
Sun, 0849° / 43°0.08Light rain
49 °Light rain

West Derry, Sunday, 8 November

Light rain. High 49°, low 43°.

Pressure30.12 inHg
Wind6.1 mph SW
Humidity82%
Visibility—
Dew point43°
Mon, 0952° / 41°0.01Light rain
52 °Light rain

West Derry, Monday, 9 November

Light rain. High 52°, low 41°.

Pressure30.18 inHg
Wind4.7 mph W
Humidity52%
Visibility—
Dew point34°
Tue, 1057° / 38°0Partly cloudy
57 °Partly cloudy

West Derry, Tuesday, 10 November

Partly cloudy. High 57°, low 38°.

Pressure30.03 inHg
Wind9.4 mph SW
Humidity52%
Visibility—
Dew point37°
Wed, 1162° / 44°0.5Rain
62 °Rain

West Derry, Wednesday, 11 November

Rain. High 62°, low 44°.

Pressure29.77 inHg
Wind10.6 mph SW
Humidity55%
Visibility—
Dew point43°
Thu, 1246° / 34°0.2Snow
46 °Snow

West Derry, Thursday, 12 November

Snow. High 46°, low 34°.

Pressure29.94 inHg
Wind17.9 mph NW
Humidity58%
Visibility—
Dew point22°

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.