10-day forecast for Keystone, PA: 37° to 70°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
70°
Best day: Friday, October 30
60° · 2.54 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 2764° / 41°0
Morning42°feels 39°
Afternoon64°feels 62°
Evening48°feels 48°
Overnight44°feels 40°
64 °
Keystone, Tuesday, 27 October
Clear. High 64°, low 41°.
Pressure30.39 inHg
Wind4.2 mph NE
Humidity60%
Visibility6.2 mi
Dew point44°
Wed, 2863° / 37°0
Morning45°feels 42°
Afternoon62°feels 61°
Evening53°feels 52°
Overnight37°feels 35°
63 °
Keystone, Wednesday, 28 October
Overcast. High 63°, low 37°.
Pressure30.45 inHg
Wind8 mph S
Humidity69%
Visibility6.2 mi
Dew point47°
Thu, 2967° / 45°0
Morning45°feels 43°
Afternoon67°feels 66°
Evening56°feels 55°
Overnight48°feels 46°
67 °
Keystone, Thursday, 29 October
Clear. High 67°, low 45°.
Pressure30.24 inHg
Wind5.3 mph S
Humidity66%
Visibility6.2 mi
Dew point51°
Fri, 3070° / 49°0
Morning50°feels 49°
Afternoon65°feels 64°
Evening65°feels 64°
Overnight51°feels 50°
70 °
Keystone, Friday, 30 October
Clear. High 70°, low 49°.
Pressure30.15 inHg
Wind8.7 mph NW
Humidity59%
Visibility—
Dew point47°
Sat, 3163° / 43°0
Morning47°feels 46°
Afternoon57°feels 55°
Evening60°feels 58°
Overnight49°feels 47°
63 °
Keystone, Saturday, 31 October
Overcast. High 63°, low 43°.
Pressure30.39 inHg
Wind6.1 mph N
Humidity61%
Visibility—
Dew point41°
Sun, 0163° / 47°0
Morning50°feels 49°
Afternoon57°feels 55°
Evening58°feels 57°
Overnight54°feels 53°
63 °
Keystone, Sunday, 1 November
Overcast. High 63°, low 47°.
Pressure30.39 inHg
Wind9.4 mph S
Humidity70%
Visibility—
Dew point46°
Mon, 0259° / 53°0
Morning54°feels 53°
Afternoon55°feels 55°
Evening58°feels 58°
Overnight55°feels 55°
59 °
Keystone, Monday, 2 November
Overcast. High 59°, low 53°.
Pressure30.21 inHg
Wind3.7 mph E
Humidity87%
Visibility—
Dew point51°
Tue, 0363° / 52°0.07
Morning54°feels 53°
Afternoon59°feels 59°
Evening63°feels 63°
Overnight57°feels 57°
63 °
Keystone, Tuesday, 3 November
Light rain. High 63°, low 52°.
Pressure30.12 inHg
Wind13.4 mph E
Humidity89%
Visibility—
Dew point54°
Wed, 0460° / 47°2.54
Morning59°feels 60°
Afternoon58°feels 58°
Evening49°feels 46°
Overnight50°feels 47°
60 °
Keystone, Wednesday, 4 November
Heavy rain. High 60°, low 47°.
Pressure29.77 inHg
Wind17.5 mph NW
Humidity99%
Visibility—
Dew point59°
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.