As of 19:11 EDT

Weather in Keystone, PA

62°

Keystone, Saturday, 10 October, 19:11

Overcast. Feels like 61°. High 69°, low 45°.

Pressure30.36 inHg

Wind6.2 mph SE

Humidity71%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Keystone, PA: average high 60.9°, average low 43.3°. That is 1.2° below the climate normal for October. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (77.9°), the coolest 20 October (30.5°).

60.9°/43.3°

Average high / low

−1.2°

Below normal

4 / 4

Wet days / normal

2.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	64.1°	64°	+0°
20 October – 29 October	55.6°	60.4°	-2.7°
30 October – 8 November	at normal	57.4°	—

October records over 66 years

88.7°2 October 2019All-time high

27.5°28 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Shiremanstown (9 mi).

Sun, 1163° / 51°

1.32

63 °

Keystone, Sunday, 11 October

Heavy rain. High 63°, low 51°.

Pressure30.15 inHg

Wind10.4 mph E

Humidity98%

Visibility1.4 mi

Dew point59°

Mon, 1271° / 53°

0.03

71 °

Keystone, Monday, 12 October

Light rain. High 71°, low 53°.

Pressure29.83 inHg

Wind11.4 mph N

Humidity66%

Visibility6.2 mi

Dew point58°

Tue, 1378° / 53°

78 °

Keystone, Tuesday, 13 October

Clear. High 78°, low 53°.

Pressure29.88 inHg

Wind8.4 mph SW

Humidity69%

Visibility6.2 mi

Dew point62°

Wed, 1476° / 63°

0.05

76 °

Keystone, Wednesday, 14 October

Light rain. High 76°, low 63°.

Pressure29.91 inHg

Wind9.1 mph NW

Humidity67%

Visibility6.2 mi

Dew point63°

Thu, 1564° / 48°

64 °

Keystone, Thursday, 15 October

Mostly clear. High 64°, low 48°.

Pressure30.24 inHg

Wind10.2 mph N

Humidity56%

Visibility—

Dew point44°

Fri, 1665° / 50°

0.4

65 °

Keystone, Friday, 16 October

Rain. High 65°, low 50°.

Pressure30.00 inHg

Wind7.2 mph SW

Humidity95%

Visibility—

Dew point53°

Sat, 1759° / 42°

0.26

59 °

Keystone, Saturday, 17 October

Light rain. High 59°, low 42°.

Pressure29.94 inHg

Wind10.6 mph NW

Humidity91%

Visibility—

Dew point48°

Sun, 1848° / 36°

48 °

Keystone, Sunday, 18 October

Clear. High 48°, low 36°.

Pressure30.12 inHg

Wind13.7 mph NW

Humidity51%

Visibility—

Dew point29°

Mon, 1948° / 31°

48 °

Keystone, Monday, 19 October

Clear. High 48°, low 31°.

Pressure30.59 inHg

Wind12.6 mph N

Humidity42%

Visibility—

Dew point19°

Tue, 2050° / 31°

50 °

Keystone, Tuesday, 20 October

Overcast. High 50°, low 31°.

Pressure30.62 inHg

Wind4.8 mph N

Humidity45%

Visibility—

Dew point21°

Wed, 2154° / 33°

54 °

Keystone, Wednesday, 21 October

Clear. High 54°, low 33°.

Pressure30.53 inHg

Wind3.9 mph S

Humidity45%

Visibility—

Dew point25°

Thu, 2256° / 36°

56 °

Keystone, Thursday, 22 October

Clear. High 56°, low 36°.

Pressure30.59 inHg

Wind5.7 mph SE

Humidity54%

Visibility—

Dew point32°

Fri, 2358° / 38°

58 °

Keystone, Friday, 23 October

Clear. High 58°, low 38°.

Pressure30.45 inHg

Wind6.3 mph SE

Humidity68%

Visibility—

Dew point39°

Sat, 2459° / 40°

59 °

Keystone, Saturday, 24 October

Overcast. High 59°, low 40°.

Pressure30.33 inHg

Wind6.7 mph E

Humidity67%

Visibility—

Dew point40°

Sun, 2557° / 42°

57 °

Keystone, Sunday, 25 October

Overcast. High 57°, low 42°.

Pressure30.21 inHg

Wind10.7 mph E

Humidity59%

Visibility—

Dew point36°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2659° / 45°

0.1

59 °

Keystone, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°

Average low45°

Average precipitation0.1 in

Chance of precipitation32%

Record high78° (1963)

Record low32° (1962)

Tue, 2760° / 45°

0.17

60 °

Keystone, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.17 in

Chance of precipitation28%

Record high80° (1963)

Record low31° (1976)

Wed, 2860° / 44°

0.1

60 °

Keystone, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high60°

Average low44°

Average precipitation0.1 in

Chance of precipitation27%

Record high79° (1984)

Record low28° (1976)

Thu, 2958° / 43°

0.2

58 °

Keystone, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.2 in

Chance of precipitation25%

Record high72° (1971)

Record low30° (1965)

Fri, 3058° / 42°

0.11

58 °

Keystone, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.11 in

Chance of precipitation25%

Record high77° (2024)

Record low29° (2011)

Sat, 3159° / 43°

0.07

59 °

Keystone, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.07 in

Chance of precipitation27%

Record high81° (2024)

Record low30° (1988)

Sun, 0160° / 44°

0.06

60 °

Keystone, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high60°

Average low44°

Average precipitation0.06 in

Chance of precipitation23%

Record high78° (1974)

Record low27° (2002)

Mon, 0259° / 44°

0.14

59 °

Keystone, Monday, 2 November

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.14 in

Chance of precipitation30%

Record high78° (1982)

Record low30° (2023)

Tue, 0359° / 43°

0.07

59 °

Keystone, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.07 in

Chance of precipitation28%

Record high77° (2003)

Record low32° (2002)

Wed, 0457° / 42°

0.08

57 °

Keystone, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.08 in

Chance of precipitation23%

Record high76° (2003)

Record low29° (2006)

Thu, 0557° / 42°

0.11

57 °

Keystone, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.11 in

Chance of precipitation27%

Record high76° (2022)

Record low27° (1991)

Fri, 0656° / 42°

0.06

56 °

Keystone, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°

Average low42°

Average precipitation0.06 in

Chance of precipitation30%

Record high80° (2024)

Record low27° (1967)

Sat, 0755° / 41°

0.08

55 °

Keystone, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°

Average low41°

Average precipitation0.08 in

Chance of precipitation28%

Record high72° (1975)

Record low28° (1962)

Sun, 0855° / 40°

0.16

55 °

Keystone, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.16 in

Chance of precipitation18%

Record high74° (1975)

Record low27° (1960)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Keystone, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Keystone, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.