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As of 19:39 EST

Weather in West Derry, PA

40°Current weather

West Derry, Saturday, 14 November, 19:39

Overcast. Feels like 33°. High 42°, low 36°.

Pressure30.09 inHg
Wind11.5 mph W
Humidity75%
Visibility6.2 mi
Dew point32°
Sun, 1542° / 39°0.04Light rain
42 °Light rain

West Derry, Sunday, 15 November

Light rain. High 42°, low 39°.

Pressure30.30 inHg
Wind10.7 mph NW
Humidity62%
Visibility6.2 mi
Dew point31°
Mon, 1646° / 40°0Overcast
46 °Overcast

West Derry, Monday, 16 November

Overcast. High 46°, low 40°.

Pressure30.53 inHg
Wind5.6 mph NW
Humidity66%
Visibility6.2 mi
Dew point33°
Tue, 1750° / 33°0Mostly clear
50 °Mostly clear

West Derry, Tuesday, 17 November

Mostly clear. High 50°, low 33°.

Pressure30.59 inHg
Wind5.1 mph W
Humidity63%
Visibility6.2 mi
Dew point36°
Wed, 1853° / 32°0Clear
53 °Clear

West Derry, Wednesday, 18 November

Clear. High 53°, low 32°.

Pressure30.50 inHg
Wind3.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point38°
Thu, 1957° / 33°0Overcast
57 °Overcast

West Derry, Thursday, 19 November

Overcast. High 57°, low 33°.

Pressure30.39 inHg
Wind7.7 mph SW
Humidity41%
Visibility—
Dew point30°
Fri, 2056° / 42°0Partly cloudy
56 °Partly cloudy

West Derry, Friday, 20 November

Partly cloudy. High 56°, low 42°.

Pressure30.27 inHg
Wind8.4 mph W
Humidity50%
Visibility—
Dew point36°
Sat, 2159° / 39°0Clear
59 °Clear

West Derry, Saturday, 21 November

Clear. High 59°, low 39°.

Pressure30.18 inHg
Wind4.9 mph SE
Humidity45%
Visibility—
Dew point35°
Sun, 2252° / 42°0.02Light rain
52 °Light rain

West Derry, Sunday, 22 November

Light rain. High 52°, low 42°.

Pressure30.00 inHg
Wind13.6 mph NW
Humidity76%
Visibility—
Dew point44°
Mon, 2341° / 29°0Overcast
41 °Overcast

West Derry, Monday, 23 November

Overcast. High 41°, low 29°.

Pressure30.30 inHg
Wind12.6 mph NW
Humidity50%
Visibility—
Dew point23°
Tue, 2435° / 22°0Clear
35 °Clear

West Derry, Tuesday, 24 November

Clear. High 35°, low 22°.

Pressure30.62 inHg
Wind4.9 mph N
Humidity34%
Visibility—
Dew point8°
Wed, 2542° / 25°0Overcast
42 °Overcast

West Derry, Wednesday, 25 November

Overcast. High 42°, low 25°.

Pressure30.45 inHg
Wind7.7 mph SE
Humidity27%
Visibility—
Dew point8°
Thu, 2649° / 31°0Overcast
49 °Overcast

West Derry, Thursday, 26 November

Overcast. High 49°, low 31°.

Pressure30.47 inHg
Wind4.5 mph NE
Humidity41%
Visibility—
Dew point24°
Fri, 2752° / 33°0Clear
52 °Clear

West Derry, Friday, 27 November

Clear. High 52°, low 33°.

Pressure30.42 inHg
Wind4.1 mph SE
Humidity49%
Visibility—
Dew point31°
Sat, 2849° / 36°0Overcast
49 °Overcast

West Derry, Saturday, 28 November

Overcast. High 49°, low 36°.

Pressure30.24 inHg
Wind4.9 mph SE
Humidity56%
Visibility—
Dew point33°
Sun, 2955° / 40°0Overcast
55 °Overcast

West Derry, Sunday, 29 November

Overcast. High 55°, low 40°.

Pressure30.21 inHg
Wind5.1 mph SE
Humidity61%
Visibility—
Dew point40°

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.