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As of 18:54 EDT

Weather in McWilliams, PA

78°Current weather

McWilliams, Saturday, 8 August, 18:54

Partly cloudy. Feels like 80°. High 81°, low 67°.

Pressure29.97 inHg
Wind6.9 mph SW
Humidity81%
Visibility6.2 mi
Dew point72°
Sun, 0985° / 66°0Clear
85 °Clear

McWilliams, Sunday, 9 August

Clear. High 85°, low 66°.

Pressure30.06 inHg
Wind6.1 mph W
Humidity58%
Visibility6.2 mi
Dew point62°
Mon, 1084° / 66°0.68Heavy rain
84 °Heavy rain

McWilliams, Monday, 10 August

Heavy rain. High 84°, low 66°.

Pressure30.00 inHg
Wind9.1 mph S
Humidity95%
Visibility6.2 mi
Dew point69°
Tue, 1180° / 64°0.38Rain
80 °Rain

McWilliams, Tuesday, 11 August

Rain. High 80°, low 64°.

Pressure29.97 inHg
Wind8.7 mph W
Humidity81%
Visibility6.2 mi
Dew point67°
Wed, 1274° / 64°0.16Light rain
74 °Light rain

McWilliams, Wednesday, 12 August

Light rain. High 74°, low 64°.

Pressure29.83 inHg
Wind7.1 mph W
Humidity89%
Visibility6.2 mi
Dew point68°
Thu, 1372° / 60°0.06Light rain
72 °Light rain

McWilliams, Thursday, 13 August

Light rain. High 72°, low 60°.

Pressure29.91 inHg
Wind12.2 mph W
Humidity66%
Visibility—
Dew point57°
Fri, 1469° / 51°0Light rain
69 °Light rain

McWilliams, Friday, 14 August

Light rain. High 69°, low 51°.

Pressure30.03 inHg
Wind14 mph NW
Humidity51%
Visibility—
Dew point48°
Sat, 1571° / 48°0Partly cloudy
71 °Partly cloudy

McWilliams, Saturday, 15 August

Partly cloudy. High 71°, low 48°.

Pressure30.27 inHg
Wind9.6 mph N
Humidity47%
Visibility—
Dew point47°
Sun, 1673° / 50°0Mostly clear
73 °Mostly clear

McWilliams, Sunday, 16 August

Mostly clear. High 73°, low 50°.

Pressure30.30 inHg
Wind4 mph SE
Humidity45%
Visibility—
Dew point48°
Mon, 1776° / 55°0Overcast
76 °Overcast

McWilliams, Monday, 17 August

Overcast. High 76°, low 55°.

Pressure30.12 inHg
Wind7 mph SW
Humidity51%
Visibility—
Dew point54°
Tue, 1873° / 60°0.12Light rain
73 °Light rain

McWilliams, Tuesday, 18 August

Light rain. High 73°, low 60°.

Pressure29.97 inHg
Wind5.5 mph NW
Humidity84%
Visibility—
Dew point65°
Wed, 1974° / 57°0Overcast
74 °Overcast

McWilliams, Wednesday, 19 August

Overcast. High 74°, low 57°.

Pressure29.97 inHg
Wind7.6 mph N
Humidity54%
Visibility—
Dew point55°
Thu, 2073° / 57°0.17Rain
73 °Rain

McWilliams, Thursday, 20 August

Rain. High 73°, low 57°.

Pressure29.97 inHg
Wind7.3 mph E
Humidity71%
Visibility—
Dew point54°
Fri, 2172° / 62°0.36Rain
72 °Rain

McWilliams, Friday, 21 August

Rain. High 72°, low 62°.

Pressure29.83 inHg
Wind8 mph SE
Humidity91%
Visibility—
Dew point68°
Sat, 2277° / 54°0.06Light rain
77 °Light rain

McWilliams, Saturday, 22 August

Light rain. High 77°, low 54°.

Pressure29.83 inHg
Wind9.3 mph NW
Humidity51%
Visibility—
Dew point55°
Sun, 2368° / 47°0Clear
68 °Clear

McWilliams, Sunday, 23 August

Clear. High 68°, low 47°.

Pressure30.09 inHg
Wind8.9 mph N
Humidity46%
Visibility—
Dew point43°

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 McWilliams, 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 McWilliams, 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.