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As of 11:31 EDT

Weather in New Castle Northwest, PA

80°Current weather

New Castle Northwest, Sunday, 9 August, 11:31

Clear. Feels like 80°. High 87°, low 67°.

Pressure30.06 inHg
Wind4 mph SW
Humidity64%
Visibility6.2 mi
Dew point66°
Mon, 1085° / 69°1.91Heavy rain
85 °Heavy rain

New Castle Northwest, Monday, 10 August

Heavy rain. High 85°, low 69°.

Pressure30.00 inHg
Wind10.2 mph SW
Humidity74%
Visibility6.2 mi
Dew point66°
Tue, 1184° / 65°0.04Light rain
84 °Light rain

New Castle Northwest, Tuesday, 11 August

Light rain. High 84°, low 65°.

Pressure29.97 inHg
Wind6.9 mph W
Humidity74%
Visibility6.2 mi
Dew point68°
Wed, 1277° / 66°0.23Rain
77 °Rain

New Castle Northwest, Wednesday, 12 August

Rain. High 77°, low 66°.

Pressure29.80 inHg
Wind7.8 mph SW
Humidity93%
Visibility6.2 mi
Dew point69°
Thu, 1376° / 62°0Partly cloudy
76 °Partly cloudy

New Castle Northwest, Thursday, 13 August

Partly cloudy. High 76°, low 62°.

Pressure29.97 inHg
Wind10.3 mph N
Humidity47%
Visibility—
Dew point53°
Fri, 1474° / 57°0Partly cloudy
74 °Partly cloudy

New Castle Northwest, Friday, 14 August

Partly cloudy. High 74°, low 57°.

Pressure30.09 inHg
Wind10.4 mph N
Humidity55%
Visibility—
Dew point55°
Sat, 1572° / 52°0Overcast
72 °Overcast

New Castle Northwest, Saturday, 15 August

Overcast. High 72°, low 52°.

Pressure30.27 inHg
Wind6.5 mph N
Humidity53%
Visibility—
Dew point51°
Sun, 1667° / 53°0.1Light rain
67 °Light rain

New Castle Northwest, Sunday, 16 August

Light rain. High 67°, low 53°.

Pressure30.12 inHg
Wind8.3 mph E
Humidity76%
Visibility—
Dew point56°
Mon, 1776° / 60°0Overcast
76 °Overcast

New Castle Northwest, Monday, 17 August

Overcast. High 76°, low 60°.

Pressure30.00 inHg
Wind7.6 mph N
Humidity60%
Visibility—
Dew point58°
Tue, 1879° / 57°0Overcast
79 °Overcast

New Castle Northwest, Tuesday, 18 August

Overcast. High 79°, low 57°.

Pressure29.97 inHg
Wind4.8 mph SE
Humidity55%
Visibility—
Dew point58°
Wed, 1982° / 62°0.13Light rain
82 °Light rain

New Castle Northwest, Wednesday, 19 August

Light rain. High 82°, low 62°.

Pressure29.71 inHg
Wind10 mph SW
Humidity61%
Visibility—
Dew point65°
Thu, 2071° / 55°0Overcast
71 °Overcast

New Castle Northwest, Thursday, 20 August

Overcast. High 71°, low 55°.

Pressure29.88 inHg
Wind9.8 mph NW
Humidity69%
Visibility—
Dew point55°
Fri, 2176° / 51°0Partly cloudy
76 °Partly cloudy

New Castle Northwest, Friday, 21 August

Partly cloudy. High 76°, low 51°.

Pressure29.91 inHg
Wind6.1 mph SW
Humidity47%
Visibility—
Dew point51°
Sat, 2282° / 59°0.67Rain
82 °Rain

New Castle Northwest, Saturday, 22 August

Rain. High 82°, low 59°.

Pressure29.80 inHg
Wind12.1 mph SW
Humidity54%
Visibility—
Dew point61°
Sun, 2372° / 57°0.03Light rain
72 °Light rain

New Castle Northwest, Sunday, 23 August

Light rain. High 72°, low 57°.

Pressure30.00 inHg
Wind13.2 mph NW
Humidity68%
Visibility—
Dew point58°
Mon, 2473° / 52°0Clear
73 °Clear

New Castle Northwest, Monday, 24 August

Clear. High 73°, low 52°.

Pressure30.24 inHg
Wind5.5 mph N
Humidity50%
Visibility—
Dew point50°

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 New Castle Northwest, 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 New Castle Northwest, 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.