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As of 16:09 EDT

Weather in Harrow, PA

83°Current weather

Harrow, Saturday, 8 August, 16:09

Overcast. Feels like 81°. High 84°, low 70°.

Pressure29.97 inHg
Wind12 mph SW
Humidity32%
Visibility6.2 mi
Dew point56°
Sun, 0988° / 70°0Light rain
88 °Light rain

Harrow, Sunday, 9 August

Light rain. High 88°, low 70°.

Pressure30.00 inHg
Wind7.2 mph W
Humidity50%
Visibility6.2 mi
Dew point66°
Mon, 1086° / 70°0.04Light rain
86 °Light rain

Harrow, Monday, 10 August

Light rain. High 86°, low 70°.

Pressure30.00 inHg
Wind8.1 mph W
Humidity52%
Visibility6.2 mi
Dew point65°
Tue, 1189° / 70°0.02Light rain
89 °Light rain

Harrow, Tuesday, 11 August

Light rain. High 89°, low 70°.

Pressure29.88 inHg
Wind4 mph NW
Humidity56%
Visibility6.2 mi
Dew point67°
Wed, 1282° / 69°0.33Rain
82 °Rain

Harrow, Wednesday, 12 August

Rain. High 82°, low 69°.

Pressure29.77 inHg
Wind9.1 mph W
Humidity60%
Visibility6.2 mi
Dew point65°
Thu, 1385° / 62°0Overcast
85 °Overcast

Harrow, Thursday, 13 August

Overcast. High 85°, low 62°.

Pressure29.77 inHg
Wind13.3 mph NW
Humidity44%
Visibility—
Dew point59°
Fri, 1475° / 59°0Mostly clear
75 °Mostly clear

Harrow, Friday, 14 August

Mostly clear. High 75°, low 59°.

Pressure29.94 inHg
Wind8.3 mph NW
Humidity36%
Visibility—
Dew point45°
Sat, 1575° / 52°0Clear
75 °Clear

Harrow, Saturday, 15 August

Clear. High 75°, low 52°.

Pressure30.15 inHg
Wind10.6 mph N
Humidity36%
Visibility—
Dew point44°
Sun, 1678° / 52°0Clear
78 °Clear

Harrow, Sunday, 16 August

Clear. High 78°, low 52°.

Pressure30.27 inHg
Wind4.9 mph N
Humidity35%
Visibility—
Dew point46°
Mon, 1781° / 56°0Partly cloudy
81 °Partly cloudy

Harrow, Monday, 17 August

Partly cloudy. High 81°, low 56°.

Pressure30.15 inHg
Wind8.7 mph S
Humidity44%
Visibility—
Dew point54°
Tue, 1877° / 65°0.03Light rain
77 °Light rain

Harrow, Tuesday, 18 August

Light rain. High 77°, low 65°.

Pressure29.94 inHg
Wind8.8 mph SW
Humidity86%
Visibility—
Dew point66°
Wed, 1983° / 63°0.01Light rain
83 °Light rain

Harrow, Wednesday, 19 August

Light rain. High 83°, low 63°.

Pressure29.85 inHg
Wind9.3 mph NW
Humidity41%
Visibility—
Dew point55°
Thu, 2078° / 58°0Overcast
78 °Overcast

Harrow, Thursday, 20 August

Overcast. High 78°, low 58°.

Pressure29.97 inHg
Wind7 mph SW
Humidity50%
Visibility—
Dew point56°
Fri, 2172° / 61°2.21Heavy rain
72 °Heavy rain

Harrow, Friday, 21 August

Heavy rain. High 72°, low 61°.

Pressure29.88 inHg
Wind6.5 mph SE
Humidity91%
Visibility—
Dew point66°
Sat, 2281° / 64°0.22Rain
81 °Rain

Harrow, Saturday, 22 August

Rain. High 81°, low 64°.

Pressure29.74 inHg
Wind7.7 mph W
Humidity57%
Visibility—
Dew point62°
Sun, 2371° / 54°0Clear
71 °Clear

Harrow, Sunday, 23 August

Clear. High 71°, low 54°.

Pressure30.00 inHg
Wind14.9 mph NW
Humidity41%
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 Harrow, 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 Harrow, 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.