As of 15:48 EDT

Weather in Chester, PA

52°

Chester, Saturday, 17 October, 15:48

Overcast. Feels like 50°. High 60°, low 41°.

Pressure30.24 inHg

Wind20.7 mph N

Humidity60%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Chester, PA: average high 65.4°, average low 49.5°. That is 1.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 1 November (75.8°), the coolest 18 October (36°).

65.4°/49.5°

Average high / low

+1.9°

Above normal

1 / 4

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
17 October – 26 October	62.4°	62.9°	-0.3°
27 October – 5 November	70.3°	60.2°	+5.6°
6 November – 15 November	at normal	55.5°	—

October records over 66 years

92.3°2 October 2019All-time high

27.3°24 October 1969All-time low

Sun, 1857° / 36°

57 °

Chester, Sunday, 18 October

Clear. High 57°, low 36°.

Pressure30.56 inHg

Wind6.6 mph N

Humidity46%

Visibility6.2 mi

Dew point33°

Mon, 1964° / 42°

64 °

Chester, Monday, 19 October

Clear. High 64°, low 42°.

Pressure30.36 inHg

Wind9.3 mph N

Humidity51%

Visibility6.2 mi

Dew point41°

Tue, 2065° / 49°

65 °

Chester, Tuesday, 20 October

Clear. High 65°, low 49°.

Pressure30.24 inHg

Wind10.4 mph N

Humidity56%

Visibility6.2 mi

Dew point46°

Wed, 2159° / 45°

59 °

Chester, Wednesday, 21 October

Clear. High 59°, low 45°.

Pressure30.27 inHg

Wind9.3 mph NE

Humidity56%

Visibility6.2 mi

Dew point40°

Thu, 2262° / 41°

62 °

Chester, Thursday, 22 October

Clear. High 62°, low 41°.

Pressure30.15 inHg

Wind10.5 mph N

Humidity59%

Visibility—

Dew point39°

Fri, 2362° / 49°

62 °

Chester, Friday, 23 October

Clear. High 62°, low 49°.

Pressure30.21 inHg

Wind9 mph N

Humidity56%

Visibility—

Dew point40°

Sat, 2464° / 48°

64 °

Chester, Saturday, 24 October

Partly cloudy. High 64°, low 48°.

Pressure30.45 inHg

Wind8.5 mph E

Humidity49%

Visibility—

Dew point37°

Sun, 2562° / 51°

62 °

Chester, Sunday, 25 October

Overcast. High 62°, low 51°.

Pressure30.39 inHg

Wind6.6 mph NE

Humidity62%

Visibility—

Dew point44°

Mon, 2668° / 50°

68 °

Chester, Monday, 26 October

Overcast. High 68°, low 50°.

Pressure30.18 inHg

Wind6.7 mph W

Humidity63%

Visibility—

Dew point46°

Tue, 2768° / 54°

68 °

Chester, Tuesday, 27 October

Clear. High 68°, low 54°.

Pressure30.24 inHg

Wind6 mph N

Humidity54%

Visibility—

Dew point45°

Wed, 2870° / 55°

70 °

Chester, Wednesday, 28 October

Partly cloudy. High 70°, low 55°.

Pressure30.33 inHg

Wind5 mph S

Humidity67%

Visibility—

Dew point51°

Thu, 2967° / 55°

67 °

Chester, Thursday, 29 October

Overcast. High 67°, low 55°.

Pressure30.15 inHg

Wind8.9 mph SW

Humidity70%

Visibility—

Dew point53°

Fri, 3069° / 59°

69 °

Chester, Friday, 30 October

Overcast. High 69°, low 59°.

Pressure30.21 inHg

Wind7.8 mph E

Humidity58%

Visibility—

Dew point49°

Sat, 3172° / 57°

72 °

Chester, Saturday, 31 October

Overcast. High 72°, low 57°.

Pressure30.18 inHg

Wind10.4 mph S

Humidity73%

Visibility—

Dew point57°

Sun, 0176° / 61°

76 °

Chester, Sunday, 1 November

Overcast. High 76°, low 61°.

Pressure30.06 inHg

Wind8.4 mph S

Humidity69%

Visibility—

Dew point56°

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

Mon, 0261° / 47°

0.08

61 °

Chester, Monday, 2 November

Climate normal for this date — 60-year average.

Average high61°

Average low47°

Average precipitation0.08 in

Chance of precipitation32%

Record high76° (1971)

Record low31° (2023)

Tue, 0361° / 45°

0.08

61 °

Chester, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high61°

Average low45°

Average precipitation0.08 in

Chance of precipitation23%

Record high76° (2003)

Record low32° (1980)

Wed, 0459° / 44°

0.08

59 °

Chester, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.08 in

Chance of precipitation18%

Record high76° (1974)

Record low32° (1996)

Thu, 0558° / 44°

0.11

58 °

Chester, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°

Average low44°

Average precipitation0.11 in

Chance of precipitation30%

Record high76° (2022)

Record low30° (1991)

Fri, 0657° / 44°

0.08

57 °

Chester, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°

Average low44°

Average precipitation0.08 in

Chance of precipitation25%

Record high78° (2024)

Record low28° (1967)

Sat, 0757° / 43°

0.1

57 °

Chester, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°

Average low43°

Average precipitation0.1 in

Chance of precipitation22%

Record high77° (2024)

Record low28° (1962)

Sun, 0857° / 42°

0.1

57 °

Chester, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.1 in

Chance of precipitation28%

Record high73° (1975)

Record low27° (1960)

Mon, 0957° / 42°

0.08

57 °

Chester, Monday, 9 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.08 in

Chance of precipitation28%

Record high75° (1975)

Record low25° (2019)

Tue, 1057° / 42°

0.15

57 °

Chester, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.15 in

Chance of precipitation35%

Record high73° (2020)

Record low28° (2017)

Wed, 1155° / 42°

0.13

55 °

Chester, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°

Average low42°

Average precipitation0.13 in

Chance of precipitation32%

Record high72° (2024)

Record low24° (2017)

Thu, 1254° / 41°

0.22

54 °

Chester, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high54°

Average low41°

Average precipitation0.22 in

Chance of precipitation40%

Record high69° (2022)

Record low29° (1987)

Fri, 1353° / 39°

0.15

53 °

Chester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.15 in

Chance of precipitation37%

Record high70° (1964)

Record low24° (2019)

Sat, 1453° / 39°

0.06

53 °

Chester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.06 in

Chance of precipitation17%

Record high70° (1993)

Record low24° (1986)

Sun, 1554° / 40°

0.11

54 °

Chester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high54°

Average low40°

Average precipitation0.11 in

Chance of precipitation27%

Record high75° (1993)

Record low26° (1967)

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 Chester, 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 Chester, 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.