EN
English Español

As of 14:34 EDT

Weather in Derry, PA

79°Current weather

Derry, Saturday, 8 August, 14:34

Mostly clear. Feels like 79°. High 81°, low 67°.

Pressure30.03 inHg
Wind8 mph SW
Humidity82%
Visibility6.2 mi
Dew point73°
Sun, 0983° / 67°0.01Light rain
83 °Light rain

Derry, Sunday, 9 August

Light rain. High 83°, low 67°.

Pressure30.09 inHg
Wind7.1 mph W
Humidity55%
Visibility6.2 mi
Dew point62°
Mon, 1085° / 65°0.67Heavy rain
85 °Heavy rain

Derry, Monday, 10 August

Heavy rain. High 85°, low 65°.

Pressure30.03 inHg
Wind8 mph S
Humidity74%
Visibility6.2 mi
Dew point67°
Tue, 1182° / 64°0.35Rain
82 °Rain

Derry, Tuesday, 11 August

Rain. High 82°, low 64°.

Pressure29.97 inHg
Wind10.8 mph W
Humidity69%
Visibility6.2 mi
Dew point66°
Wed, 1272° / 64°0.16Light rain
72 °Light rain

Derry, Wednesday, 12 August

Light rain. High 72°, low 64°.

Pressure29.83 inHg
Wind8.2 mph SW
Humidity94%
Visibility6.2 mi
Dew point69°
Thu, 1371° / 61°0.17Light rain
71 °Light rain

Derry, Thursday, 13 August

Light rain. High 71°, low 61°.

Pressure29.91 inHg
Wind8.9 mph SW
Humidity98%
Visibility—
Dew point67°
Fri, 1472° / 53°0Clear
72 °Clear

Derry, Friday, 14 August

Clear. High 72°, low 53°.

Pressure30.03 inHg
Wind9.7 mph N
Humidity44%
Visibility—
Dew point47°
Sat, 1572° / 49°0Mostly clear
72 °Mostly clear

Derry, Saturday, 15 August

Mostly clear. High 72°, low 49°.

Pressure30.27 inHg
Wind6.3 mph NW
Humidity46%
Visibility—
Dew point46°
Sun, 1676° / 51°0Partly cloudy
76 °Partly cloudy

Derry, Sunday, 16 August

Partly cloudy. High 76°, low 51°.

Pressure30.27 inHg
Wind4.6 mph SE
Humidity38%
Visibility—
Dew point46°
Mon, 1778° / 56°0Overcast
78 °Overcast

Derry, Monday, 17 August

Overcast. High 78°, low 56°.

Pressure30.12 inHg
Wind6.9 mph W
Humidity47%
Visibility—
Dew point54°
Tue, 1865° / 61°0.13Light rain
65 °Light rain

Derry, Tuesday, 18 August

Light rain. High 65°, low 61°.

Pressure29.97 inHg
Wind11.4 mph SE
Humidity93%
Visibility—
Dew point61°
Wed, 1974° / 63°0.15Light rain
74 °Light rain

Derry, Wednesday, 19 August

Light rain. High 74°, low 63°.

Pressure29.88 inHg
Wind9.4 mph SW
Humidity91%
Visibility—
Dew point69°
Thu, 2069° / 49°0.24Rain
69 °Rain

Derry, Thursday, 20 August

Rain. High 69°, low 49°.

Pressure30.00 inHg
Wind9.7 mph N
Humidity73%
Visibility—
Dew point55°
Fri, 2169° / 43°0Clear
69 °Clear

Derry, Friday, 21 August

Clear. High 69°, low 43°.

Pressure30.12 inHg
Wind6.5 mph N
Humidity39%
Visibility—
Dew point39°
Sat, 2269° / 54°0Overcast
69 °Overcast

Derry, Saturday, 22 August

Overcast. High 69°, low 54°.

Pressure30.09 inHg
Wind6.7 mph W
Humidity46%
Visibility—
Dew point45°
Sun, 2371° / 49°0.19Rain
71 °Rain

Derry, Sunday, 23 August

Rain. High 71°, low 49°.

Pressure30.09 inHg
Wind8.9 mph W
Humidity57%
Visibility—
Dew point52°

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 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 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.