10-day forecast for Keystone, PA: 36° to 68°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
68°
Best day: Wednesday, November 4
58° · 0.47 in
Worst day: Saturday, November 7
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0165° / 36°0
Morning36°feels 34°
Afternoon65°feels 63°
Evening50°feels 48°
Overnight40°feels 39°
65 °
Keystone, Sunday, 1 November
Overcast. High 65°, low 36°.
Pressure30.53 inHg
Wind4 mph SE
Humidity52%
Visibility6.2 mi
Dew point39°
Mon, 0262° / 41°0
Morning44°feels 43°
Afternoon60°feels 58°
Evening53°feels 50°
Overnight41°feels 39°
62 °
Keystone, Monday, 2 November
Overcast. High 62°, low 41°.
Pressure30.42 inHg
Wind2.8 mph S
Humidity63%
Visibility6.2 mi
Dew point42°
Tue, 0366° / 43°0
Morning43°feels 41°
Afternoon66°feels 64°
Evening57°feels 56°
Overnight46°feels 44°
66 °
Keystone, Tuesday, 3 November
Mostly clear. High 66°, low 43°.
Pressure30.30 inHg
Wind4 mph S
Humidity49%
Visibility6.2 mi
Dew point42°
Wed, 0468° / 49°0
Morning49°feels 47°
Afternoon61°feels 60°
Evening65°feels 65°
Overnight52°feels 51°
68 °
Keystone, Wednesday, 4 November
Clear. High 68°, low 49°.
Pressure30.18 inHg
Wind10.4 mph S
Humidity77%
Visibility—
Dew point51°
Thu, 0566° / 53°0.04
Morning56°feels 55°
Afternoon63°feels 63°
Evening65°feels 65°
Overnight60°feels 60°
66 °
Keystone, Thursday, 5 November
Light rain. High 66°, low 53°.
Pressure29.91 inHg
Wind12.2 mph S
Humidity90%
Visibility—
Dew point58°
Fri, 0666° / 58°0.04
Morning60°feels 60°
Afternoon62°feels 62°
Evening65°feels 64°
Overnight60°feels 59°
66 °
Keystone, Friday, 6 November
Light rain. High 66°, low 58°.
Pressure29.83 inHg
Wind9.2 mph SE
Humidity84%
Visibility—
Dew point56°
Sat, 0758° / 53°0.47
Morning57°feels 56°
Afternoon55°feels 54°
Evening54°feels 53°
Overnight54°feels 54°
58 °
Keystone, Saturday, 7 November
Rain. High 58°, low 53°.
Pressure29.68 inHg
Wind14 mph E
Humidity92%
Visibility—
Dew point53°
Sun, 0855° / 53°0.13
Morning54°feels 53°
Afternoon54°feels 53°
Evening53°feels 53°
Overnight53°feels 52°
55 °
Keystone, Sunday, 8 November
Light rain. High 55°, low 53°.
Pressure29.80 inHg
Wind4 mph W
Humidity95%
Visibility—
Dew point53°
Mon, 0957° / 51°0.05
Morning52°feels 51°
Afternoon55°feels 54°
Evening56°feels 55°
Overnight51°feels 50°
57 °
Keystone, Monday, 9 November
Light rain. High 57°, low 51°.
Pressure29.88 inHg
Wind4.6 mph E
Humidity92%
Visibility—
Dew point52°
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 Keystone, 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.