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As of 12:37 EDT

Weather in Mercersburg, PA

87°Current weather

Mercersburg, Sunday, 9 August, 12:37

Clear. Feels like 93°. High 88°, low 71°.

Pressure30.03 inHg
Wind9.6 mph W
Humidity58%
Visibility6.2 mi
Dew point71°

10-day forecast for Mercersburg, PA: 52° to 88°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

88°
Best day: Sunday, August 9
84° · 0.27 in
Worst day: Wednesday, August 12

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1088° / 69°0.04Light rain
MorningPartly cloudy75°feels 75°
AfternoonOvercast84°feels 83°
EveningOvercast81°feels 84°
OvernightClear71°feels 71°
88 °Light rain

Mercersburg, Monday, 10 August

Light rain. High 88°, low 69°.

Pressure30.00 inHg
Wind7.9 mph W
Humidity50%
Visibility6.2 mi
Dew point65°
Tue, 1188° / 66°0.3Heavy rain
MorningOvercast69°feels 70°
AfternoonOvercast87°feels 88°
EveningOvercast76°feels 76°
OvernightLight rain71°feels 72°
88 °Heavy rain

Mercersburg, Tuesday, 11 August

Heavy rain. High 88°, low 66°.

Pressure29.94 inHg
Wind9.6 mph NW
Humidity55%
Visibility6.2 mi
Dew point64°
Wed, 1284° / 68°0.27Rain
MorningOvercast70°feels 71°
AfternoonOvercast83°feels 85°
EveningRain73°feels 74°
OvernightOvercast70°feels 70°
84 °Rain

Mercersburg, Wednesday, 12 August

Rain. High 84°, low 68°.

Pressure29.85 inHg
Wind3.6 mph W
Humidity76%
Visibility6.2 mi
Dew point67°
Thu, 1382° / 67°0.01Light rain
MorningPartly cloudy71°feels 72°
AfternoonLight rain80°feels 79°
EveningLight rain71°feels 70°
OvernightPartly cloudy69°feels 70°
82 °Light rain

Mercersburg, Thursday, 13 August

Light rain. High 82°, low 67°.

Pressure29.88 inHg
Wind15.6 mph NW
Humidity36%
Visibility6.2 mi
Dew point52°
Fri, 1470° / 60°0Overcast
MorningOvercast64°feels 64°
AfternoonOvercast64°feels 64°
EveningOvercast63°feels 63°
OvernightOvercast61°feels 60°
70 °Overcast

Mercersburg, Friday, 14 August

Overcast. High 70°, low 60°.

Pressure30.09 inHg
Wind6 mph SW
Humidity74%
Visibility—
Dew point56°
Sat, 1578° / 54°0Overcast
MorningOvercast64°feels 63°
AfternoonOvercast74°feels 73°
EveningOvercast64°feels 63°
OvernightOvercast59°feels 57°
78 °Overcast

Mercersburg, Saturday, 15 August

Overcast. High 78°, low 54°.

Pressure30.21 inHg
Wind9.7 mph N
Humidity35%
Visibility—
Dew point45°
Sun, 1666° / 52°0.04Light rain
MorningLight rain59°feels 58°
AfternoonLight rain60°feels 60°
EveningLight rain63°feels 63°
OvernightLight rain62°feels 62°
66 °Light rain

Mercersburg, Sunday, 16 August

Light rain. High 66°, low 52°.

Pressure30.18 inHg
Wind4.6 mph N
Humidity88%
Visibility—
Dew point56°
Mon, 1781° / 61°0Overcast
MorningOvercast67°feels 67°
AfternoonOvercast77°feels 77°
EveningOvercast68°feels 68°
OvernightOvercast63°feels 63°
81 °Overcast

Mercersburg, Monday, 17 August

Overcast. High 81°, low 61°.

Pressure29.91 inHg
Wind11.7 mph NW
Humidity56%
Visibility—
Dew point59°
Tue, 1884° / 59°0Partly cloudy
MorningPartly cloudy69°feels 69°
AfternoonPartly cloudy82°feels 80°
EveningPartly cloudy71°feels 71°
OvernightPartly cloudy67°feels 66°
84 °Partly cloudy

Mercersburg, Tuesday, 18 August

Partly cloudy. High 84°, low 59°.

Pressure29.97 inHg
Wind5.9 mph W
Humidity35%
Visibility—
Dew point51°

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 Mercersburg, 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.