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As of 22:03 EST

Weather in West Derry, PA

36°Current weather

West Derry, Friday, 13 November, 22:03

Overcast. Feels like 36°. High 42°, low 36°.

Pressure29.85 inHg
Wind0 mph N
Humidity80%
Visibility6.2 mi
Dew point31°
Sat, 1441° / 33°0.1Light rain
41 °Light rain

West Derry, Saturday, 14 November

Light rain. High 41°, low 33°.

Pressure30.00 inHg
Wind11.5 mph W
Humidity95%
Visibility4.6 mi
Dew point36°
Sun, 1545° / 36°0.03Light rain
45 °Light rain

West Derry, Sunday, 15 November

Light rain. High 45°, low 36°.

Pressure30.30 inHg
Wind10.6 mph NW
Humidity58%
Visibility6.2 mi
Dew point30°
Mon, 1645° / 38°0Overcast
45 °Overcast

West Derry, Monday, 16 November

Overcast. High 45°, low 38°.

Pressure30.53 inHg
Wind5.8 mph NW
Humidity62%
Visibility6.2 mi
Dew point33°
Tue, 1748° / 31°0Clear
48 °Clear

West Derry, Tuesday, 17 November

Clear. High 48°, low 31°.

Pressure30.56 inHg
Wind4.5 mph SW
Humidity64%
Visibility6.2 mi
Dew point35°
Wed, 1853° / 32°0Clear
53 °Clear

West Derry, Wednesday, 18 November

Clear. High 53°, low 32°.

Pressure30.47 inHg
Wind2.5 mph SW
Humidity52%
Visibility—
Dew point33°
Thu, 1957° / 33°0Mostly clear
57 °Mostly clear

West Derry, Thursday, 19 November

Mostly clear. High 57°, low 33°.

Pressure30.39 inHg
Wind6.2 mph SW
Humidity43%
Visibility—
Dew point31°
Fri, 2054° / 41°0Overcast
54 °Overcast

West Derry, Friday, 20 November

Overcast. High 54°, low 41°.

Pressure30.36 inHg
Wind4.7 mph SW
Humidity57%
Visibility—
Dew point37°
Sat, 2162° / 44°0Clear
62 °Clear

West Derry, Saturday, 21 November

Clear. High 62°, low 44°.

Pressure30.15 inHg
Wind5.6 mph SE
Humidity60%
Visibility—
Dew point46°
Sun, 2261° / 41°0.08Light rain
61 °Light rain

West Derry, Sunday, 22 November

Light rain. High 61°, low 41°.

Pressure29.71 inHg
Wind12.5 mph SW
Humidity38%
Visibility—
Dew point33°
Mon, 2336° / 23°0.06Light snow
36 °Light snow

West Derry, Monday, 23 November

Light snow. High 36°, low 23°.

Pressure30.00 inHg
Wind14.8 mph W
Humidity73%
Visibility—
Dew point23°
Tue, 2431° / 21°0.07Light snow
31 °Light snow

West Derry, Tuesday, 24 November

Light snow. High 31°, low 21°.

Pressure30.03 inHg
Wind11.7 mph W
Humidity54%
Visibility—
Dew point15°
Wed, 2533° / 21°0.01Light snow
33 °Light snow

West Derry, Wednesday, 25 November

Light snow. High 33°, low 21°.

Pressure30.27 inHg
Wind12.3 mph W
Humidity54%
Visibility—
Dew point17°
Thu, 2641° / 28°0Light snow
41 °Light snow

West Derry, Thursday, 26 November

Light snow. High 41°, low 28°.

Pressure30.15 inHg
Wind13.7 mph SW
Humidity44%
Visibility—
Dew point19°
Fri, 2739° / 24°0Overcast
39 °Overcast

West Derry, Friday, 27 November

Overcast. High 39°, low 24°.

Pressure30.45 inHg
Wind6.6 mph SW
Humidity61%
Visibility—
Dew point25°
Sat, 2853° / 31°0.09Light rain
53 °Light rain

West Derry, Saturday, 28 November

Light rain. High 53°, low 31°.

Pressure30.06 inHg
Wind18.2 mph S
Humidity61%
Visibility—
Dew point32°

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.