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As of 22:18 EDT

Weather in West Derry, PA

75°Current weather

West Derry, Saturday, 8 August, 22:18

Clear. Feels like 77°. High 83°, low 67°.

Pressure30.03 inHg
Wind7.3 mph SW
Humidity90%
Visibility6.2 mi
Dew point72°
Sun, 0983° / 67°0.05Rain
83 °Rain

West Derry, Sunday, 9 August

Rain. High 83°, low 67°.

Pressure30.09 inHg
Wind6.1 mph W
Humidity60%
Visibility6.2 mi
Dew point64°
Mon, 1084° / 64°0.6Rain
84 °Rain

West Derry, Monday, 10 August

Rain. High 84°, low 64°.

Pressure30.03 inHg
Wind7.7 mph SW
Humidity85%
Visibility6.2 mi
Dew point66°
Tue, 1181° / 64°0.35Heavy rain
81 °Heavy rain

West Derry, Tuesday, 11 August

Heavy rain. High 81°, low 64°.

Pressure30.00 inHg
Wind7.8 mph SW
Humidity92%
Visibility6.2 mi
Dew point67°
Wed, 1276° / 67°0.07Light rain
76 °Light rain

West Derry, Wednesday, 12 August

Light rain. High 76°, low 67°.

Pressure29.83 inHg
Wind9.9 mph W
Humidity86%
Visibility6.2 mi
Dew point67°
Thu, 1374° / 57°0.03Light rain
74 °Light rain

West Derry, Thursday, 13 August

Light rain. High 74°, low 57°.

Pressure29.94 inHg
Wind12.4 mph NW
Humidity47%
Visibility—
Dew point51°
Fri, 1475° / 52°0Clear
75 °Clear

West Derry, Friday, 14 August

Clear. High 75°, low 52°.

Pressure30.06 inHg
Wind6.6 mph NW
Humidity43%
Visibility—
Dew point48°
Sat, 1575° / 52°0Clear
75 °Clear

West Derry, Saturday, 15 August

Clear. High 75°, low 52°.

Pressure30.24 inHg
Wind8.3 mph NW
Humidity45%
Visibility—
Dew point49°
Sun, 1680° / 54°0Partly cloudy
80 °Partly cloudy

West Derry, Sunday, 16 August

Partly cloudy. High 80°, low 54°.

Pressure30.15 inHg
Wind5.9 mph NW
Humidity39%
Visibility—
Dew point50°
Mon, 1779° / 60°0.03Light rain
79 °Light rain

West Derry, Monday, 17 August

Light rain. High 79°, low 60°.

Pressure30.03 inHg
Wind4 mph NW
Humidity51%
Visibility—
Dew point57°
Tue, 1880° / 60°0.06Light rain
80 °Light rain

West Derry, Tuesday, 18 August

Light rain. High 80°, low 60°.

Pressure30.00 inHg
Wind5.7 mph SE
Humidity60%
Visibility—
Dew point62°
Wed, 1983° / 63°0.4Rain
83 °Rain

West Derry, Wednesday, 19 August

Rain. High 83°, low 63°.

Pressure29.85 inHg
Wind8.9 mph W
Humidity54%
Visibility—
Dew point62°
Thu, 2065° / 57°0.18Light rain
65 °Light rain

West Derry, Thursday, 20 August

Light rain. High 65°, low 57°.

Pressure29.83 inHg
Wind12 mph NW
Humidity81%
Visibility—
Dew point58°
Fri, 2173° / 50°0Clear
73 °Clear

West Derry, Friday, 21 August

Clear. High 73°, low 50°.

Pressure29.97 inHg
Wind9.9 mph NW
Humidity43%
Visibility—
Dew point46°
Sat, 2279° / 49°0.01Light rain
79 °Light rain

West Derry, Saturday, 22 August

Light rain. High 79°, low 49°.

Pressure30.03 inHg
Wind4.9 mph W
Humidity37%
Visibility—
Dew point47°
Sun, 2381° / 64°0.02Light rain
81 °Light rain

West Derry, Sunday, 23 August

Light rain. High 81°, low 64°.

Pressure29.91 inHg
Wind11.3 mph W
Humidity72%
Visibility—
Dew point68°

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.