10-day forecast for Keystone, PA: 32° to 68°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Tuesday, October 20
48°
Worst day: Wednesday, October 28
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 2163° / 37°0
Morning38°feels 33°
Afternoon63°feels 60°
Evening46°feels 44°
Overnight38°feels 32°
63 °
Keystone, Wednesday, 21 October
Clear. High 63°, low 37°.
Pressure30.24 inHg
Wind5.2 mph N
Humidity51%
Visibility6.2 mi
Dew point38°
Thu, 2264° / 35°0
Morning41°feels 35°
Afternoon63°feels 61°
Evening52°feels 50°
Overnight35°feels 30°
64 °
Keystone, Thursday, 22 October
Clear. High 64°, low 35°.
Pressure30.12 inHg
Wind8 mph NW
Humidity53%
Visibility6.2 mi
Dew point41°
Fri, 2354° / 39°0
Morning39°feels 35°
Afternoon54°feels 51°
Evening45°feels 42°
Overnight44°feels 40°
54 °
Keystone, Friday, 23 October
Mostly clear. High 54°, low 39°.
Pressure30.39 inHg
Wind9.6 mph N
Humidity47%
Visibility6.2 mi
Dew point32°
Sat, 2456° / 35°0
Morning35°feels 31°
Afternoon50°feels 49°
Evening53°feels 50°
Overnight38°feels 34°
56 °
Keystone, Saturday, 24 October
Clear. High 56°, low 35°.
Pressure30.59 inHg
Wind5.1 mph N
Humidity59%
Visibility—
Dew point33°
Sun, 2561° / 34°0
Morning40°feels 39°
Afternoon54°feels 51°
Evening58°feels 56°
Overnight42°feels 40°
61 °
Keystone, Sunday, 25 October
Clear. High 61°, low 34°.
Pressure30.53 inHg
Wind4.5 mph SW
Humidity60%
Visibility—
Dew point36°
Mon, 2665° / 42°0
Morning47°feels 46°
Afternoon58°feels 56°
Evening61°feels 60°
Overnight49°feels 47°
65 °
Keystone, Monday, 26 October
Mostly clear. High 65°, low 42°.
Pressure30.33 inHg
Wind4.6 mph SW
Humidity59%
Visibility—
Dew point41°
Tue, 2768° / 47°0.08
Morning51°feels 51°
Afternoon62°feels 61°
Evening63°feels 61°
Overnight47°feels 43°
68 °
Keystone, Tuesday, 27 October
Light rain. High 68°, low 47°.
Pressure30.09 inHg
Wind11.8 mph NW
Humidity57%
Visibility—
Dew point44°
Wed, 2848° / 35°0.02
Morning39°feels 32°
Afternoon44°feels 38°
Evening46°feels 41°
Overnight36°feels 32°
48 °
Keystone, Wednesday, 28 October
Light rain. High 48°, low 35°.
Pressure30.36 inHg
Wind12.9 mph NW
Humidity52%
Visibility—
Dew point26°
Thu, 2953° / 32°0
Morning36°feels 33°
Afternoon46°feels 43°
Evening50°feels 47°
Overnight37°feels 35°
53 °
Keystone, Thursday, 29 October
Clear. High 53°, low 32°.
Pressure30.30 inHg
Wind9.1 mph SW
Humidity46%
Visibility—
Dew point24°
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.