10-day forecast for Harrow, PA: 42° to 77°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Thursday, October 8
61° · 0.2 in
Worst day: Sunday, October 11
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 0971° / 43°0
Morning48°feels 45°
Afternoon71°feels 70°
Evening55°feels 52°
Overnight47°feels 45°
71 °
Harrow, Friday, 9 October
Clear. High 71°, low 43°.
Pressure30.18 inHg
Wind11.1 mph W
Humidity41%
Visibility6.2 mi
Dew point42°
Sat, 1070° / 42°0
Morning46°feels 45°
Afternoon70°feels 68°
Evening59°feels 57°
Overnight45°feels 45°
70 °
Harrow, Saturday, 10 October
Overcast. High 70°, low 42°.
Pressure30.47 inHg
Wind3.6 mph E
Humidity40%
Visibility6.2 mi
Dew point42°
Sun, 1161° / 54°0.2
Morning57°feels 56°
Afternoon61°feels 60°
Evening58°feels 58°
Overnight54°feels 54°
61 °
Harrow, Sunday, 11 October
Light rain. High 61°, low 54°.
Pressure30.30 inHg
Wind11.1 mph E
Humidity95%
Visibility6.2 mi
Dew point56°
Mon, 1271° / 56°0.05
Morning56°feels 56°
Afternoon70°feels 70°
Evening69°feels 69°
Overnight58°feels 58°
71 °
Harrow, Monday, 12 October
Light rain. High 71°, low 56°.
Pressure29.77 inHg
Wind9.7 mph N
Humidity77%
Visibility6.2 mi
Dew point57°
Tue, 1374° / 55°0.01
Morning60°feels 59°
Afternoon71°feels 71°
Evening70°feels 70°
Overnight56°feels 55°
74 °
Harrow, Tuesday, 13 October
Light rain. High 74°, low 55°.
Pressure29.77 inHg
Wind13.2 mph W
Humidity69%
Visibility—
Dew point58°
Wed, 1460° / 46°0
Morning52°feels 50°
Afternoon55°feels 53°
Evening57°feels 56°
Overnight47°feels 46°
60 °
Harrow, Wednesday, 14 October
Mostly clear. High 60°, low 46°.
Pressure30.06 inHg
Wind11.7 mph N
Humidity58%
Visibility—
Dew point39°
Thu, 1563° / 42°0
Morning46°feels 45°
Afternoon55°feels 53°
Evening55°feels 54°
Overnight51°feels 50°
63 °
Harrow, Thursday, 15 October
Partly cloudy. High 63°, low 42°.
Pressure30.30 inHg
Wind7.1 mph SW
Humidity54%
Visibility—
Dew point37°
Fri, 1677° / 54°0.09
Morning58°feels 57°
Afternoon68°feels 68°
Evening74°feels 75°
Overnight65°feels 65°
77 °
Harrow, Friday, 16 October
Light rain. High 77°, low 54°.
Pressure30.09 inHg
Wind10.4 mph W
Humidity80%
Visibility—
Dew point58°
Sat, 1765° / 42°0
Morning54°feels 53°
Afternoon55°feels 52°
Evening52°feels 50°
Overnight44°feels 41°
65 °
Harrow, Saturday, 17 October
Partly cloudy. High 65°, low 42°.
Pressure30.09 inHg
Wind13.9 mph NW
Humidity54%
Visibility—
Dew point38°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Harrow, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.