As of 12:36 EDT

Weather in Bethlehem, PA

72°

Bethlehem, Thursday, 8 October, 12:36

Overcast. Feels like 71°. High 73°, low 52°.

Pressure29.88 inHg

Wind12.7 mph W

Humidity43%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Bethlehem, PA: average high 65.3°, average low 47.4°. That is 1.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (74.7°), the coolest 18 October (36.4°).

65.3°/47.4°

Average high / low

+1.3°

Above normal

3 / 4

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	67.1°	64.1°	+1.7°
18 October – 27 October	62.3°	60.3°	+1.1°
28 October – 6 November	at normal	57.2°	—

October records over 66 years

88.5°2 October 2019All-time high

23.5°31 October 2011All-time low

Climate normals and records are computed from the nearest reference point — Fountain Hill (2 mi).

Fri, 0972° / 43°

72 °

Bethlehem, Friday, 9 October

Clear. High 72°, low 43°.

Pressure30.18 inHg

Wind9.9 mph W

Humidity45%

Visibility6.2 mi

Dew point44°

Sat, 1068° / 44°

68 °

Bethlehem, Saturday, 10 October

Overcast. High 68°, low 44°.

Pressure30.47 inHg

Wind3.3 mph E

Humidity53%

Visibility6.2 mi

Dew point47°

Sun, 1160° / 53°

0.23

60 °

Bethlehem, Sunday, 11 October

Light rain. High 60°, low 53°.

Pressure30.33 inHg

Wind5.1 mph E

Humidity83%

Visibility2.7 mi

Dew point55°

Mon, 1272° / 57°

0.05

72 °

Bethlehem, Monday, 12 October

Light rain. High 72°, low 57°.

Pressure29.77 inHg

Wind6.8 mph NE

Humidity81%

Visibility6.2 mi

Dew point59°

Tue, 1375° / 56°

0.04

75 °

Bethlehem, Tuesday, 13 October

Light rain. High 75°, low 56°.

Pressure29.77 inHg

Wind10.6 mph W

Humidity73%

Visibility—

Dew point60°

Wed, 1462° / 45°

62 °

Bethlehem, Wednesday, 14 October

Clear. High 62°, low 45°.

Pressure30.03 inHg

Wind10.4 mph N

Humidity49%

Visibility—

Dew point35°

Thu, 1553° / 40°

53 °

Bethlehem, Thursday, 15 October

Overcast. High 53°, low 40°.

Pressure30.33 inHg

Wind3.3 mph NE

Humidity51%

Visibility—

Dew point29°

Fri, 1671° / 52°

0.03

71 °

Bethlehem, Friday, 16 October

Light rain. High 71°, low 52°.

Pressure30.21 inHg

Wind12.1 mph SW

Humidity69%

Visibility—

Dew point49°

Sat, 1765° / 41°

65 °

Bethlehem, Saturday, 17 October

Overcast. High 65°, low 41°.

Pressure30.27 inHg

Wind18.2 mph NW

Humidity55%

Visibility—

Dew point36°

Sun, 1858° / 36°

58 °

Bethlehem, Sunday, 18 October

Clear. High 58°, low 36°.

Pressure30.59 inHg

Wind8.5 mph N

Humidity35%

Visibility—

Dew point22°

Mon, 1960° / 41°

60 °

Bethlehem, Monday, 19 October

Overcast. High 60°, low 41°.

Pressure30.50 inHg

Wind8.4 mph SW

Humidity41%

Visibility—

Dew point30°

Tue, 2058° / 48°

58 °

Bethlehem, Tuesday, 20 October

Overcast. High 58°, low 48°.

Pressure30.33 inHg

Wind6.4 mph SW

Humidity61%

Visibility—

Dew point39°

Wed, 2163° / 50°

0.03

63 °

Bethlehem, Wednesday, 21 October

Light rain. High 63°, low 50°.

Pressure30.21 inHg

Wind8.5 mph SW

Humidity73%

Visibility—

Dew point50°

Thu, 2270° / 53°

0.02

70 °

Bethlehem, Thursday, 22 October

Light rain. High 70°, low 53°.

Pressure30.15 inHg

Wind5.5 mph SW

Humidity79%

Visibility—

Dew point55°

Fri, 2365° / 48°

0.03

65 °

Bethlehem, Friday, 23 October

Light rain. High 65°, low 48°.

Pressure29.97 inHg

Wind16.4 mph W

Humidity89%

Visibility—

Dew point57°

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

Sat, 2460° / 43°

0.14

60 °

Bethlehem, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high60°

Average low43°

Average precipitation0.14 in

Chance of precipitation35%

Record high78° (2001)

Record low24° (1969)

Sun, 2559° / 44°

0.12

59 °

Bethlehem, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.12 in

Chance of precipitation32%

Record high75° (2021)

Record low30° (1962)

Mon, 2658° / 43°

0.12

58 °

Bethlehem, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.12 in

Chance of precipitation37%

Record high77° (1963)

Record low30° (1960)

Tue, 2759° / 43°

0.2

59 °

Bethlehem, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.2 in

Chance of precipitation30%

Record high79° (1963)

Record low28° (1988)

Wed, 2858° / 42°

0.15

58 °

Bethlehem, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.15 in

Chance of precipitation27%

Record high77° (2023)

Record low24° (1976)

Thu, 2957° / 41°

0.21

57 °

Bethlehem, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.21 in

Chance of precipitation25%

Record high72° (1984)

Record low29° (1965)

Fri, 3057° / 40°

0.11

57 °

Bethlehem, Friday, 30 October

Climate normal for this date — 60-year average.

Average high57°

Average low40°

Average precipitation0.11 in

Chance of precipitation23%

Record high76° (2024)

Record low28° (1962)

Sat, 3157° / 40°

0.05

57 °

Bethlehem, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high57°

Average low40°

Average precipitation0.05 in

Chance of precipitation18%

Record high81° (2024)

Record low24° (2011)

Sun, 0159° / 42°

0.08

59 °

Bethlehem, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high59°

Average low42°

Average precipitation0.08 in

Chance of precipitation23%

Record high76° (1974)

Record low22° (2002)

Mon, 0258° / 43°

0.12

58 °

Bethlehem, Monday, 2 November

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.12 in

Chance of precipitation32%

Record high75° (1982)

Record low24° (2002)

Tue, 0358° / 41°

0.08

58 °

Bethlehem, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high58°

Average low41°

Average precipitation0.08 in

Chance of precipitation23%

Record high75° (2003)

Record low28° (2002)

Wed, 0456° / 40°

0.07

56 °

Bethlehem, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.07 in

Chance of precipitation18%

Record high72° (1961)

Record low27° (2006)

Thu, 0556° / 40°

0.11

56 °

Bethlehem, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.11 in

Chance of precipitation28%

Record high74° (2022)

Record low26° (1991)

Fri, 0655° / 40°

0.08

55 °

Bethlehem, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.08 in

Chance of precipitation30%

Record high80° (2024)

Record low25° (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 Bethlehem, 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 Bethlehem, 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.