10-day forecast for Brandywine Summit, PA: 59° to 88°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
88°
Best day: Monday, August 10
76°
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 71°0
Morning74°feels 74°
Afternoon79°feels 79°
Evening76°feels 76°
Overnight73°feels 73°
88 °
Brandywine Summit, Monday, 10 August
Mostly clear. High 88°, low 71°.
Pressure30.00 inHg
Wind5.5 mph W
Humidity40%
Visibility6.2 mi
Dew point62°
Tue, 1188° / 71°0.06
Morning71°feels 72°
Afternoon87°feels 88°
Evening79°feels 79°
Overnight77°feels 78°
88 °
Brandywine Summit, Tuesday, 11 August
Light rain. High 88°, low 71°.
Pressure29.88 inHg
Wind10.6 mph NW
Humidity52%
Visibility6.2 mi
Dew point64°
Wed, 1285° / 72°0.02
Morning73°feels 74°
Afternoon84°feels 86°
Evening79°feels 80°
Overnight75°feels 75°
85 °
Brandywine Summit, Wednesday, 12 August
Light rain. High 85°, low 72°.
Pressure29.77 inHg
Wind11.1 mph W
Humidity60%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 70°0.02
Morning75°feels 75°
Afternoon82°feels 81°
Evening74°feels 74°
Overnight76°feels 77°
83 °
Brandywine Summit, Thursday, 13 August
Light rain. High 83°, low 70°.
Pressure29.80 inHg
Wind14.3 mph NW
Humidity37%
Visibility—
Dew point53°
Fri, 1476° / 63°0
Morning66°feels 65°
Afternoon74°feels 73°
Evening69°feels 68°
Overnight65°feels 64°
76 °
Brandywine Summit, Friday, 14 August
Overcast. High 76°, low 63°.
Pressure30.03 inHg
Wind10.8 mph W
Humidity37%
Visibility—
Dew point45°
Sat, 1578° / 60°0
Morning65°feels 64°
Afternoon75°feels 74°
Evening69°feels 68°
Overnight64°feels 63°
78 °
Brandywine Summit, Saturday, 15 August
Clear. High 78°, low 60°.
Pressure30.12 inHg
Wind11.4 mph NW
Humidity35%
Visibility—
Dew point44°
Sun, 1679° / 59°0
Morning67°feels 66°
Afternoon78°feels 77°
Evening71°feels 71°
Overnight67°feels 66°
79 °
Brandywine Summit, Sunday, 16 August
Overcast. High 79°, low 59°.
Pressure30.12 inHg
Wind6.1 mph NW
Humidity33%
Visibility—
Dew point45°
Mon, 1778° / 63°0
Morning70°feels 69°
Afternoon76°feels 76°
Evening69°feels 69°
Overnight67°feels 67°
78 °
Brandywine Summit, Monday, 17 August
Overcast. High 78°, low 63°.
Pressure30.00 inHg
Wind7.5 mph S
Humidity42%
Visibility—
Dew point51°
Tue, 1886° / 65°0.02
Morning73°feels 73°
Afternoon83°feels 83°
Evening74°feels 75°
Overnight70°feels 71°
86 °
Brandywine Summit, Tuesday, 18 August
Light rain. High 86°, low 65°.
Pressure30.00 inHg
Wind5.1 mph S
Humidity40%
Visibility—
Dew point56°
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 Brandywine Summit, 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.