As of 21:52 EDT

Weather in Union, PA

60°

Union, Monday, 12 October, 21:52

Clear. Feels like 61°. High 69°, low 54°.

Pressure29.88 inHg

Wind6.6 mph W

Humidity92%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Monthly outlook for Union, PA: average high 62.1°, average low 46.7°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 14 October (76.9°), the coolest 19 October (33.9°).

62.1°/46.7°

Average high / low

−0.4°

Below normal

4 / 4

Wet days / normal

1.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 October – 21 October	64.2°	63.9°	+0.2°
22 October – 31 October	58.7°	60.1°	-0.8°
1 November – 10 November	at normal	57.3°	—

October records over 66 years

92.5°2 October 2019All-time high

27.7°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Pottstown (7 mi).

Tue, 1375° / 53°

75 °

Union, Tuesday, 13 October

Clear. High 75°, low 53°.

Pressure29.94 inHg

Wind6.1 mph SW

Humidity65%

Visibility6.2 mi

Dew point61°

Wed, 1477° / 64°

0.02

77 °

Union, Wednesday, 14 October

Light rain. High 77°, low 64°.

Pressure29.91 inHg

Wind8.1 mph W

Humidity68%

Visibility6.2 mi

Dew point66°

Thu, 1563° / 52°

63 °

Union, Thursday, 15 October

Mostly clear. High 63°, low 52°.

Pressure30.24 inHg

Wind4.6 mph NE

Humidity62%

Visibility6.2 mi

Dew point48°

Fri, 1672° / 53°

0.9

72 °

Union, Friday, 16 October

Rain. High 72°, low 53°.

Pressure29.62 inHg

Wind13.1 mph SW

Humidity87%

Visibility6.2 mi

Dew point66°

Sat, 1750° / 39°

0.04

50 °

Union, Saturday, 17 October

Light rain. High 50°, low 39°.

Pressure30.21 inHg

Wind15.8 mph NW

Humidity53%

Visibility—

Dew point30°

Sun, 1855° / 36°

55 °

Union, Sunday, 18 October

Clear. High 55°, low 36°.

Pressure30.47 inHg

Wind8.1 mph SW

Humidity56%

Visibility—

Dew point33°

Mon, 1958° / 34°

58 °

Union, Monday, 19 October

Clear. High 58°, low 34°.

Pressure30.50 inHg

Wind10.7 mph SW

Humidity55%

Visibility—

Dew point34°

Tue, 2060° / 45°

60 °

Union, Tuesday, 20 October

Overcast. High 60°, low 45°.

Pressure30.36 inHg

Wind2.9 mph SW

Humidity68%

Visibility—

Dew point42°

Wed, 2163° / 44°

63 °

Union, Wednesday, 21 October

Clear. High 63°, low 44°.

Pressure30.36 inHg

Wind5.5 mph NE

Humidity66%

Visibility—

Dew point45°

Thu, 2262° / 43°

62 °

Union, Thursday, 22 October

Clear. High 62°, low 43°.

Pressure30.50 inHg

Wind6 mph SE

Humidity72%

Visibility—

Dew point46°

Fri, 2364° / 44°

64 °

Union, Friday, 23 October

Overcast. High 64°, low 44°.

Pressure30.39 inHg

Wind11.4 mph SW

Humidity73%

Visibility—

Dew point48°

Sat, 2472° / 54°

72 °

Union, Saturday, 24 October

Overcast. High 72°, low 54°.

Pressure30.15 inHg

Wind11.1 mph W

Humidity75%

Visibility—

Dew point54°

Sun, 2554° / 48°

0.01

54 °

Union, Sunday, 25 October

Light rain. High 54°, low 48°.

Pressure30.24 inHg

Wind6.3 mph NE

Humidity67%

Visibility—

Dew point43°

Mon, 2649° / 45°

0.75

49 °

Union, Monday, 26 October

Rain. High 49°, low 45°.

Pressure30.09 inHg

Wind8.6 mph N

Humidity78%

Visibility—

Dew point42°

Tue, 2752° / 40°

0.01

52 °

Union, Tuesday, 27 October

Light rain. High 52°, low 40°.

Pressure29.71 inHg

Wind8.4 mph NW

Humidity61%

Visibility—

Dew point36°

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

Wed, 2860° / 45°

0.14

60 °

Union, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.14 in

Chance of precipitation23%

Record high79° (2023)

Record low29° (1976)

Thu, 2958° / 43°

0.24

58 °

Union, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.24 in

Chance of precipitation25%

Record high75° (1984)

Record low31° (1965)

Fri, 3058° / 42°

0.1

58 °

Union, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.1 in

Chance of precipitation23%

Record high78° (2016)

Record low31° (2011)

Sat, 3159° / 43°

0.05

59 °

Union, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.05 in

Chance of precipitation18%

Record high82° (2024)

Record low29° (2011)

Sun, 0160° / 45°

0.08

60 °

Union, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.08 in

Chance of precipitation25%

Record high78° (1974)

Record low33° (2002)

Mon, 0260° / 45°

0.1

60 °

Union, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.1 in

Chance of precipitation30%

Record high77° (1971)

Record low30° (2023)

Tue, 0360° / 44°

0.07

60 °

Union, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high60°

Average low44°

Average precipitation0.07 in

Chance of precipitation23%

Record high77° (2003)

Record low31° (1980)

Wed, 0458° / 42°

0.07

58 °

Union, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.07 in

Chance of precipitation18%

Record high74° (1987)

Record low30° (2021)

Thu, 0557° / 42°

0.11

57 °

Union, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.11 in

Chance of precipitation28%

Record high76° (2022)

Record low28° (1991)

Fri, 0656° / 42°

0.07

56 °

Union, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°

Average low42°

Average precipitation0.07 in

Chance of precipitation28%

Record high81° (2024)

Record low28° (1991)

Sat, 0756° / 41°

0.07

56 °

Union, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°

Average low41°

Average precipitation0.07 in

Chance of precipitation23%

Record high74° (2024)

Record low27° (1962)

Sun, 0855° / 41°

0.13

55 °

Union, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°

Average low41°

Average precipitation0.13 in

Chance of precipitation20%

Record high73° (1975)

Record low26° (1960)

Mon, 0956° / 40°

0.1

56 °

Union, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.1 in

Chance of precipitation32%

Record high75° (1975)

Record low22° (2019)

Tue, 1056° / 40°

0.17

56 °

Union, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.17 in

Chance of precipitation40%

Record high73° (2020)

Record low25° (2017)

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 Union, 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 Union, 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.