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Keystone PA Weather - Clear - 46°F
Clear
46°F
Updated 4:31 am
Feels Like 45°F
Humidity 88%
Wind E 6 mph
Barometer  30.33 in
Dew Point 43°F
Keystone PA Weather - Clear - 8°C
Clear
8°C
Updated 4:31 am
Feels Like 7°C
Humidity 88%
Wind E 10 km/h
Barometer  102.7 kPa
Dew Point 6°C
Keystone, PA Weather and Current Conditionskeystone pa weather forecast

Keystone, PA Weather Forecast

Keystone Pennsylvania WeatherKeystone, Pennsylvania Weather Weather Forecast
14 day API forecast for Keystone, Pennsylvania. Note. The 7-day weather forecast for Keystone, PA is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Keystone, PA Weather Forecast Dated: 431 AM Tue Sep 15 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and a stable pattern will dominate.

Tuesday, September 15, 2026

Mid-Morning
Keystone Weather - 2026-09-15 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Keystone Weather - 2026-09-15 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
Keystone Weather - 2026-09-15 - Evening - Partly Cloudy
61°F 16°C
Partly Cloudy
Refreshing around 67°F 20°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the SE to the SSE at 6 mph 10 km/h.

Wednesday, September 16, 2026

Mid-Morning
Keystone Weather - 2026-09-16 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Keystone Weather - 2026-09-16 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Keystone Weather - 2026-09-16 - Evening - Cloudy
66°F 19°C
Cloudy
Comfortable with temperatures reaching 75°F 24°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Keystone Weather - 2026-09-17 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-17 - Afternoon - Scattered Showers
78°F 25°C
Scattered Showers
Early-Evening
Keystone Weather - 2026-09-17 - Evening - Scattered Showers
70°F 21°C
Scattered Showers
Enjoyable around 78°F 25°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling. Winds switching from the SSW to the N at 3 mph 4 km/h.

Friday, September 18, 2026

Mid-Morning
Keystone Weather - 2026-09-18 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-18 - Afternoon - Sunny
74°F 23°C
Sunny
Early-Evening
Keystone Weather - 2026-09-18 - Evening - Overcast
64°F 18°C
Overcast
Mild temperatures up to 74°F 23°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.

Saturday, September 19, 2026

Mid-Morning
Keystone Weather - 2026-09-19 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Keystone Weather - 2026-09-19 - Afternoon - Scattered Showers
67°F 19°C
Scattered Showers
Early-Evening
Keystone Weather - 2026-09-19 - Evening - Scattered Showers
64°F 18°C
Scattered Showers
Refreshing around 67°F 19°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds moving from the ESE to the S at 7 mph 12 km/h. Gusts up to 24 mph 39 km/h.

Sunday, September 20, 2026

Mid-Morning
Keystone Weather - 2026-09-20 - Morning - Cloudy
69°F 20°C
Cloudy
Mid-Afternoon
Keystone Weather - 2026-09-20 - Afternoon - Scattered Showers
71°F 22°C
Scattered Showers
Early-Evening
Keystone Weather - 2026-09-20 - Evening - Cloudy
64°F 18°C
Cloudy
Pleasant near 71°F 22°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the WSW to the N at 6 mph 9 km/h.

Monday, September 21, 2026

Mid-Morning
Keystone Weather - 2026-09-21 - Morning - Scattered Showers
60°F 15°C
Scattered Showers
Mid-Afternoon
Keystone Weather - 2026-09-21 - Afternoon - Scattered Showers
61°F 16°C
Scattered Showers
Early-Evening
Keystone Weather - 2026-09-21 - Evening - Overcast
57°F 14°C
Overcast
Comfortable at 61°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Keystone Weather - 2026-09-22 - Morning - Scattered Showers
57°F 14°C
Scattered Showers
Mid-Afternoon
Keystone Weather - 2026-09-22 - Afternoon - Light Showers
56°F 13°C
Light Showers
Early-Evening
Keystone Weather - 2026-09-22 - Evening - Light Showers
57°F 14°C
Light Showers
Crisp with a high near 56°F 13°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the SE at 12 mph 20 km/h. Gusts up to 31 mph 50 km/h.

Wednesday, September 23, 2026

Mid-Morning
Keystone Weather - 2026-09-23 - Morning - Light Fog
63°F 17°C
Light Fog
Mid-Afternoon
Keystone Weather - 2026-09-23 - Afternoon - Scattered Showers
70°F 21°C
Scattered Showers
Early-Evening
Keystone Weather - 2026-09-23 - Evening - Fog
68°F 21°C
Fog
Mild temperatures up to 70°F 21°C, locally heavy downpours at times, with steady humidity and steady pressure.

Thursday, September 24, 2026

Mid-Morning
Keystone Weather - 2026-09-24 - Morning - Light Showers
63°F 17°C
Light Showers
Mid-Afternoon
Keystone Weather - 2026-09-24 - Afternoon - Light Fog
65°F 18°C
Light Fog
Early-Evening
Keystone Weather - 2026-09-24 - Evening - Fog
62°F 17°C
Fog
Mildly cool near 65°F 18°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure.

Friday, September 25, 2026

Mid-Morning
Keystone Weather - 2026-09-25 - Morning - Overcast
56°F 14°C
Overcast
Mid-Afternoon
Keystone Weather - 2026-09-25 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
Keystone Weather - 2026-09-25 - Evening - Overcast
56°F 13°C
Overcast
Comfortable at 63°F 17°C, overcast in the morning, becoming cloudy through the afternoon and evening, with lower humidity and barometric pressure rising. Winds turning from the WNW to the NNW at 5 mph 8 km/h.

Saturday, September 26, 2026

Mid-Morning
Keystone Weather - 2026-09-26 - Morning - Cloudy
51°F 10°C
Cloudy
Mid-Afternoon
Keystone Weather - 2026-09-26 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Keystone Weather - 2026-09-26 - Evening - Overcast
55°F 13°C
Overcast
Cool with a high near 62°F 17°C, overcast throughout the day, with steady humidity and steady pressure.

Sunday, September 27, 2026

Mid-Morning
Keystone Weather - 2026-09-27 - Morning - Sunny
49°F 9°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-27 - Afternoon - Sunny
60°F 16°C
Sunny
Early-Evening
Keystone Weather - 2026-09-27 - Evening - Overcast
53°F 11°C
Overcast
Refreshing around 60°F 16°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the N to the ESE at 8 mph 13 km/h.

Monday, September 28, 2026

Mid-Morning
Keystone Weather - 2026-09-28 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Keystone Weather - 2026-09-28 - Afternoon - Partly Cloudy
58°F 15°C
Partly Cloudy
Early-Evening
Keystone Weather - 2026-09-28 - Evening - Partly Cloudy
51°F 10°C
Partly Cloudy
Mildly cool near 58°F 15°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.

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Weather by the Numbers

Tue, 15th
Keystone PA Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 68°F 20°C
Lo: 46°F 8°C
Sunrise 06:44 AM
Sunset 07:13 PM
Wind S 8 mph13 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 42%
Wed, 16th
Keystone PA Weather - Wednesday, Sep 16, 2026 - Cloudy
Hi: 75°F 24°C
Lo: 53°F 12°C
Sunrise 06:45 AM
Sunset 07:11 PM
Wind SW 7 mph11 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 30.36 in1028 mb
POP 9% *
Humidity 57%
Thu, 17th
Keystone PA Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 78°F 25°C
Lo: 61°F 16°C
Sunrise 06:46 AM
Sunset 07:09 PM
Wind SW 11 mph17 km/h
Dew Point 58°F14°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 55%
Fri, 18th
Keystone PA Weather - Friday, Sep 18, 2026 - Sunny
Hi: 74°F 23°C
Lo: 56°F 13°C
Sunrise 06:47 AM
Sunset 07:07 PM
Wind N 5 mph9 km/h
Dew Point 49°F10°C
uv Index 6
Barometric Pressure 30.21 in1023 mb
POP 2% *
Humidity 48%
Sat, 19th
Keystone PA Weather - Saturday, Sep 19, 2026 - Cloudy
Hi: 68°F 20°C
Lo: 52°F 11°C
Sunrise 06:48 AM
Sunset 07:06 PM
Wind SSE 9 mph14 km/h
Dew Point 54°F12°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 11% *
Humidity 65%
Sun, 20th
Keystone PA Weather - Sunday, Sep 20, 2026 - Patchy Rain Nearby
Hi: 75°F 24°C
Lo: 61°F 16°C
Sunrise 06:49 AM
Sunset 07:04 PM
Wind WNW 9 mph14 km/h
Dew Point 67°F19°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 17% *
Humidity 78%
Mon, 21st
Keystone PA Weather - Monday, Sep 21, 2026 - Patchy Rain Nearby
Hi: 62°F 16°C
Lo: 56°F 13°C
Sunrise 06:50 AM
Sunset 07:02 PM
Wind ESE 3 mph4 km/h
Dew Point 57°F14°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 37% *
Humidity 86%
Tue, 22nd
Keystone PA Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 58°F 14°C
Lo: 55°F 13°C
Sunrise 06:51 AM
Sunset 07:00 PM
Wind SE 13 mph21 km/h
Dew Point 54°F12°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 33% *
Humidity 96%
Wed, 23rd
Keystone PA Weather - Wednesday, Sep 23, 2026 - Patchy Rain Nearby
Hi: 70°F 21°C
Lo: 58°F 15°C
Sunrise 06:52 AM
Sunset 06:59 PM
Wind SW 4 mph7 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 34% *
Humidity 93%
Thu, 24th
Keystone PA Weather - Thursday, Sep 24, 2026 - Light Rain Shower
Hi: 67°F 19°C
Lo: 60°F 16°C
Sunrise 06:53 AM
Sunset 06:57 PM
Wind E 2 mph4 km/h
Dew Point 62°F17°C
uv Index 4
Barometric Pressure 29.85 in1011 mb
POP 54% *
Humidity 94%
Fri, 25th
Keystone PA Weather - Friday, Sep 25, 2026 - Patchy Rain Nearby
Hi: 64°F 18°C
Lo: 50°F 10°C
Sunrise 06:54 AM
Sunset 06:55 PM
Wind NNW 9 mph14 km/h
Dew Point 48°F9°C
uv Index 3
Barometric Pressure 29.85 in1011 mb
POP 18% *
Humidity 74%
Sat, 26th
Keystone PA Weather - Saturday, Sep 26, 2026 - Cloudy
Hi: 62°F 17°C
Lo: 46°F 8°C
Sunrise 06:55 AM
Sunset 06:54 PM
Wind NNW 6 mph10 km/h
Dew Point 43°F6°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 9% *
Humidity 56%
Sun, 27th
Keystone PA Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 61°F 16°C
Lo: 45°F 7°C
Sunrise 06:56 AM
Sunset 06:52 PM
Wind N 11 mph17 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 3% *
Humidity 52%
Mon, 28th
Keystone PA Weather - Monday, Sep 28, 2026 - Overcast
Hi: 59°F 15°C
Lo: 41°F 5°C
Sunrise 06:57 AM
Sunset 06:50 PM
Wind ESE 6 mph10 km/h
Dew Point 35°F2°C
uv Index 3
Barometric Pressure 30.47 in1032 mb
POP 5% *
Humidity 47%
* POP = Probability of Precipitation. Data for 12:00 PM.