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As of 19:29 EDT

Weather in Derry, PA

60°Current weather

Derry, Wednesday, 7 October, 19:29

Clear. Feels like 59°. High 71°, low 40°.

Pressure29.85 inHg
Wind9.1 mph SW
Humidity72%
Visibility6.2 mi
Dew point50°
Thu, 0869° / 47°0Clear
69 °Clear

Derry, Thursday, 8 October

Clear. High 69°, low 47°.

Pressure29.97 inHg
Wind9.8 mph W
Humidity54%
Visibility6.2 mi
Dew point49°
Fri, 0965° / 40°0Clear
65 °Clear

Derry, Friday, 9 October

Clear. High 65°, low 40°.

Pressure30.27 inHg
Wind5.6 mph W
Humidity52%
Visibility6.2 mi
Dew point44°
Sat, 1072° / 45°0Overcast
72 °Overcast

Derry, Saturday, 10 October

Overcast. High 72°, low 45°.

Pressure30.39 inHg
Wind7.3 mph SE
Humidity46%
Visibility6.2 mi
Dew point48°
Sun, 1162° / 56°0.09Light rain
62 °Light rain

Derry, Sunday, 11 October

Light rain. High 62°, low 56°.

Pressure30.21 inHg
Wind5.3 mph NE
Humidity81%
Visibility6.2 mi
Dew point55°
Mon, 1270° / 60°0.1Light rain
70 °Light rain

Derry, Monday, 12 October

Light rain. High 70°, low 60°.

Pressure29.80 inHg
Wind6.9 mph W
Humidity76%
Visibility—
Dew point60°
Tue, 1367° / 48°0.14Light rain
67 °Light rain

Derry, Tuesday, 13 October

Light rain. High 67°, low 48°.

Pressure29.71 inHg
Wind15.5 mph W
Humidity87%
Visibility—
Dew point62°
Wed, 1457° / 40°0Clear
57 °Clear

Derry, Wednesday, 14 October

Clear. High 57°, low 40°.

Pressure30.12 inHg
Wind9.4 mph NW
Humidity45%
Visibility—
Dew point33°
Thu, 1570° / 40°0Clear
70 °Clear

Derry, Thursday, 15 October

Clear. High 70°, low 40°.

Pressure30.06 inHg
Wind3.4 mph SE
Humidity31%
Visibility—
Dew point34°
Fri, 1669° / 52°0.03Light rain
69 °Light rain

Derry, Friday, 16 October

Light rain. High 69°, low 52°.

Pressure30.00 inHg
Wind9.3 mph NW
Humidity78%
Visibility—
Dew point60°
Sat, 1751° / 43°0.04Light rain
51 °Light rain

Derry, Saturday, 17 October

Light rain. High 51°, low 43°.

Pressure30.06 inHg
Wind12.8 mph NW
Humidity76%
Visibility—
Dew point42°
Sun, 1844° / 32°0.01Light rain
44 °Light rain

Derry, Sunday, 18 October

Light rain. High 44°, low 32°.

Pressure30.33 inHg
Wind9.3 mph NW
Humidity60%
Visibility—
Dew point30°
Mon, 1949° / 29°0Clear
49 °Clear

Derry, Monday, 19 October

Clear. High 49°, low 29°.

Pressure30.59 inHg
Wind5.7 mph NE
Humidity37%
Visibility—
Dew point22°
Tue, 2057° / 30°0Overcast
57 °Overcast

Derry, Tuesday, 20 October

Overcast. High 57°, low 30°.

Pressure30.45 inHg
Wind4.8 mph E
Humidity30%
Visibility—
Dew point22°
Wed, 2152° / 38°0Light rain
52 °Light rain

Derry, Wednesday, 21 October

Light rain. High 52°, low 38°.

Pressure30.18 inHg
Wind7.8 mph SW
Humidity66%
Visibility—
Dew point40°
Thu, 2249° / 47°0.33Light rain
49 °Light rain

Derry, Thursday, 22 October

Light rain. High 49°, low 47°.

Pressure29.85 inHg
Wind9 mph SW
Humidity96%
Visibility—
Dew point48°

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.