10-day forecast for Guernsey, PA: 61° to 101°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
101°
Best day: Sunday, August 16
90° · 0.28 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1087° / 71°0
Morning75°feels 75°
Afternoon87°feels 86°
Evening80°feels 80°
Overnight74°feels 74°
87 °
Guernsey, Monday, 10 August
Light rain. High 87°, low 71°.
Pressure29.97 inHg
Wind10.3 mph SW
Humidity42%
Visibility6.2 mi
Dew point64°
Tue, 1190° / 69°0.28
Morning71°feels 72°
Afternoon87°feels 89°
Evening76°feels 76°
Overnight72°feels 73°
90 °
Guernsey, Tuesday, 11 August
Rain. High 90°, low 69°.
Pressure29.94 inHg
Wind7.6 mph NW
Humidity57%
Visibility6.2 mi
Dew point66°
Wed, 1284° / 68°0.17
Morning70°feels 72°
Afternoon81°feels 84°
Evening75°feels 76°
Overnight68°feels 69°
84 °
Guernsey, Wednesday, 12 August
Rain. High 84°, low 68°.
Pressure29.80 inHg
Wind10.8 mph W
Humidity63%
Visibility6.2 mi
Dew point66°
Thu, 1385° / 67°0
Morning71°feels 72°
Afternoon85°feels 83°
Evening71°feels 70°
Overnight68°feels 69°
85 °
Guernsey, Thursday, 13 August
Mostly clear. High 85°, low 67°.
Pressure29.94 inHg
Wind10.9 mph NW
Humidity42%
Visibility6.2 mi
Dew point56°
Fri, 1481° / 63°0
Morning70°feels 69°
Afternoon74°feels 73°
Evening69°feels 69°
Overnight65°feels 65°
81 °
Guernsey, Friday, 14 August
Overcast. High 81°, low 63°.
Pressure30.09 inHg
Wind4.8 mph S
Humidity50%
Visibility—
Dew point54°
Sat, 1580° / 61°0
Morning69°feels 69°
Afternoon78°feels 79°
Evening72°feels 72°
Overnight69°feels 69°
80 °
Guernsey, Saturday, 15 August
Overcast. High 80°, low 61°.
Pressure30.15 inHg
Wind8.4 mph SW
Humidity51%
Visibility—
Dew point58°
Sun, 16101° / 67°0.07
Morning79°feels 80°
Afternoon98°feels 100°
Evening86°feels 90°
Overnight79°feels 82°
101 °
Guernsey, Sunday, 16 August
Light rain. High 101°, low 67°.
Pressure29.80 inHg
Wind16.1 mph W
Humidity29%
Visibility—
Dew point58°
Mon, 1783° / 66°0
Morning70°feels 70°
Afternoon79°feels 79°
Evening70°feels 70°
Overnight66°feels 65°
83 °
Guernsey, Monday, 17 August
Partly cloudy. High 83°, low 66°.
Pressure30.00 inHg
Wind11.8 mph N
Humidity38%
Visibility—
Dew point51°
Tue, 1890° / 63°0.03
Morning74°feels 73°
Afternoon87°feels 87°
Evening77°feels 77°
Overnight73°feels 73°
90 °
Guernsey, Tuesday, 18 August
Light rain. High 90°, low 63°.
Pressure30.03 inHg
Wind14.2 mph S
Humidity35%
Visibility—
Dew point55°
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 Guernsey, 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.