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As of 12:51 EDT

Weather in Portland Mills, PA

79°Current weather

Portland Mills, Sunday, 9 August, 12:51

Clear. Feels like 79°. High 83°, low 66°.

Pressure30.06 inHg
Wind3.9 mph W
Humidity65%
Visibility6.2 mi
Dew point66°
Mon, 1085° / 65°0.14Light rain
85 °Light rain

Portland Mills, Monday, 10 August

Light rain. High 85°, low 65°.

Pressure30.00 inHg
Wind11.1 mph W
Humidity68%
Visibility6.2 mi
Dew point63°
Tue, 1185° / 62°0.05Light rain
85 °Light rain

Portland Mills, Tuesday, 11 August

Light rain. High 85°, low 62°.

Pressure29.97 inHg
Wind4.8 mph NW
Humidity88%
Visibility6.2 mi
Dew point65°
Wed, 1272° / 63°0.14Light rain
72 °Light rain

Portland Mills, Wednesday, 12 August

Light rain. High 72°, low 63°.

Pressure29.83 inHg
Wind5.1 mph SW
Humidity99%
Visibility3.4 mi
Dew point65°
Thu, 1376° / 59°0.01Light rain
76 °Light rain

Portland Mills, Thursday, 13 August

Light rain. High 76°, low 59°.

Pressure29.94 inHg
Wind12.5 mph NW
Humidity41%
Visibility6.2 mi
Dew point47°
Fri, 1474° / 53°0Partly cloudy
74 °Partly cloudy

Portland Mills, Friday, 14 August

Partly cloudy. High 74°, low 53°.

Pressure30.06 inHg
Wind10.7 mph NW
Humidity39%
Visibility—
Dew point46°
Sat, 1568° / 48°0Overcast
68 °Overcast

Portland Mills, Saturday, 15 August

Overcast. High 68°, low 48°.

Pressure30.27 inHg
Wind8.1 mph N
Humidity46%
Visibility—
Dew point44°
Sun, 1661° / 49°0.01Light rain
61 °Light rain

Portland Mills, Sunday, 16 August

Light rain. High 61°, low 49°.

Pressure30.15 inHg
Wind7 mph SE
Humidity72%
Visibility—
Dew point51°
Mon, 1776° / 56°0Overcast
76 °Overcast

Portland Mills, Monday, 17 August

Overcast. High 76°, low 56°.

Pressure29.94 inHg
Wind7.6 mph NW
Humidity45%
Visibility—
Dew point51°
Tue, 1879° / 53°0Overcast
79 °Overcast

Portland Mills, Tuesday, 18 August

Overcast. High 79°, low 53°.

Pressure29.97 inHg
Wind5.1 mph SW
Humidity41%
Visibility—
Dew point51°
Wed, 1983° / 62°0.12Light rain
83 °Light rain

Portland Mills, Wednesday, 19 August

Light rain. High 83°, low 62°.

Pressure29.74 inHg
Wind11.6 mph SW
Humidity46%
Visibility—
Dew point58°
Thu, 2064° / 53°0Light rain
64 °Light rain

Portland Mills, Thursday, 20 August

Light rain. High 64°, low 53°.

Pressure29.85 inHg
Wind7.6 mph NW
Humidity71%
Visibility—
Dew point54°
Fri, 2176° / 48°0Overcast
76 °Overcast

Portland Mills, Friday, 21 August

Overcast. High 76°, low 48°.

Pressure29.88 inHg
Wind6.8 mph W
Humidity33%
Visibility—
Dew point41°
Sat, 2281° / 55°0.72Heavy rain
81 °Heavy rain

Portland Mills, Saturday, 22 August

Heavy rain. High 81°, low 55°.

Pressure29.83 inHg
Wind10.8 mph SW
Humidity50%
Visibility—
Dew point55°
Sun, 2372° / 52°0.13Light rain
72 °Light rain

Portland Mills, Sunday, 23 August

Light rain. High 72°, low 52°.

Pressure29.94 inHg
Wind13.4 mph NW
Humidity58%
Visibility—
Dew point55°
Mon, 2474° / 47°0Clear
74 °Clear

Portland Mills, Monday, 24 August

Clear. High 74°, low 47°.

Pressure30.21 inHg
Wind3.8 mph N
Humidity37%
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 Portland Mills, 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 Portland Mills, 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.