As of 20:56 EST

Weather in Gretna, PA

50°

Gretna, Wednesday, 11 November, 20:56

Overcast. Feels like 50°. High 63°, low 36°.

Pressure29.71 inHg

Wind0 mph N

Humidity87%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Gretna, PA: average high 53.2°, average low 36.3°. That is 2.5° above the climate normal for November. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 24 November (66.9°), the coolest 14 November (29.9°).

53.2°/36.3°

Average high / low

+2.5°

Above normal

2 / 6

Wet days / normal

0.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	50.6°	49.5°	+0.7°
21 November – 30 November	57.4°	46.9°	+5.9°
1 December – 10 December	at normal	42.3°	—

November records over 66 years

78.6°5 November 2024All-time high

8.8°30 November 1976All-time low

Climate normals and records are computed from the nearest reference point — East Finley (14 mi).

Thu, 1252° / 36°

0.1

52 °

Gretna, Thursday, 12 November

Light rain. High 52°, low 36°.

Pressure29.53 inHg

Wind8.3 mph N

Humidity82%

Visibility6.2 mi

Dew point44°

Fri, 1345° / 31°

45 °

Gretna, Friday, 13 November

Light rain. High 45°, low 31°.

Pressure29.83 inHg

Wind9.4 mph NW

Humidity68%

Visibility6.2 mi

Dew point27°

Sat, 1442° / 30°

0.01

42 °

Gretna, Saturday, 14 November

Light snow. High 42°, low 30°.

Pressure30.03 inHg

Wind14.5 mph W

Humidity66%

Visibility6.2 mi

Dew point27°

Sun, 1544° / 38°

44 °

Gretna, Sunday, 15 November

Overcast. High 44°, low 38°.

Pressure30.30 inHg

Wind11.3 mph NW

Humidity69%

Visibility6.2 mi

Dew point35°

Mon, 1647° / 35°

47 °

Gretna, Monday, 16 November

Overcast. High 47°, low 35°.

Pressure30.47 inHg

Wind5.3 mph W

Humidity54%

Visibility—

Dew point29°

Tue, 1750° / 30°

50 °

Gretna, Tuesday, 17 November

Clear. High 50°, low 30°.

Pressure30.50 inHg

Wind3.7 mph SW

Humidity52%

Visibility—

Dew point30°

Wed, 1853° / 32°

53 °

Gretna, Wednesday, 18 November

Clear. High 53°, low 32°.

Pressure30.42 inHg

Wind3.1 mph E

Humidity43%

Visibility—

Dew point28°

Thu, 1955° / 34°

55 °

Gretna, Thursday, 19 November

Mostly clear. High 55°, low 34°.

Pressure30.33 inHg

Wind3.3 mph E

Humidity36%

Visibility—

Dew point26°

Fri, 2055° / 35°

55 °

Gretna, Friday, 20 November

Overcast. High 55°, low 35°.

Pressure30.21 inHg

Wind4.1 mph SW

Humidity38%

Visibility—

Dew point28°

Sat, 2153° / 39°

53 °

Gretna, Saturday, 21 November

Overcast. High 53°, low 39°.

Pressure30.12 inHg

Wind8.1 mph SW

Humidity55%

Visibility—

Dew point34°

Sun, 2260° / 39°

60 °

Gretna, Sunday, 22 November

Overcast. High 60°, low 39°.

Pressure30.00 inHg

Wind9 mph S

Humidity52%

Visibility—

Dew point40°

Mon, 2360° / 48°

60 °

Gretna, Monday, 23 November

Overcast. High 60°, low 48°.

Pressure30.00 inHg

Wind10.8 mph SW

Humidity52%

Visibility—

Dew point41°

Tue, 2467° / 47°

67 °

Gretna, Tuesday, 24 November

Overcast. High 67°, low 47°.

Pressure29.85 inHg

Wind13.2 mph SE

Humidity57%

Visibility—

Dew point49°

Wed, 2563° / 41°

0.12

63 °

Gretna, Wednesday, 25 November

Light rain. High 63°, low 41°.

Pressure29.77 inHg

Wind19.6 mph SW

Humidity71%

Visibility—

Dew point47°

Thu, 2642° / 31°

0.02

42 °

Gretna, Thursday, 26 November

Snow. High 42°, low 31°.

Pressure30.33 inHg

Wind14.3 mph W

Humidity51%

Visibility—

Dew point25°

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

Fri, 2748° / 35°

0.14

48 °

Gretna, Friday, 27 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.14 in

Chance of precipitation45%

Record high71° (1990)

Record low18° (1977)

Sat, 2846° / 34°

0.17

46 °

Gretna, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.17 in

Chance of precipitation52%

Record high67° (1990)

Record low12° (2013)

Sun, 2944° / 32°

0.09

44 °

Gretna, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.09 in

Chance of precipitation30%

Record high65° (2005)

Record low13° (1976)

Mon, 3045° / 33°

0.13

45 °

Gretna, Monday, 30 November

Climate normal for this date — 60-year average.

Average high45°

Average low33°

Average precipitation0.13 in

Chance of precipitation42%

Record high66° (1991)

Record low9° (1976)

Tue, 0145° / 32°

0.15

45 °

Gretna, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.15 in

Chance of precipitation43%

Record high64° (2006)

Record low11° (1976)

Wed, 0244° / 31°

0.12

44 °

Gretna, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.12 in

Chance of precipitation37%

Record high70° (1982)

Record low9° (1976)

Thu, 0344° / 30°

0.12

44 °

Gretna, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.12 in

Chance of precipitation40%

Record high71° (1982)

Record low0° (1976)

Fri, 0443° / 30°

0.11

43 °

Gretna, Friday, 4 December

Climate normal for this date — 60-year average.

Average high43°

Average low30°

Average precipitation0.11 in

Chance of precipitation38%

Record high65° (1982)

Record low1° (1966)

Sat, 0542° / 30°

0.12

42 °

Gretna, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.12 in

Chance of precipitation48%

Record high70° (1982)

Record low6° (1974)

Sun, 0642° / 29°

0.14

42 °

Gretna, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.14 in

Chance of precipitation42%

Record high67° (1998)

Record low5° (2007)

Mon, 0740° / 29°

0.09

40 °

Gretna, Monday, 7 December

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.09 in

Chance of precipitation30%

Record high64° (1998)

Record low10° (2007)

Tue, 0841° / 29°

0.12

41 °

Gretna, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.12 in

Chance of precipitation28%

Record high64° (1966)

Record low8° (2005)

Wed, 0942° / 29°

0.15

42 °

Gretna, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.15 in

Chance of precipitation40%

Record high67° (1966)

Record low2° (1977)

Thu, 1041° / 29°

0.17

41 °

Gretna, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.17 in

Chance of precipitation47%

Record high69° (1971)

Record low1° (1977)

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 Gretna, 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 Gretna, 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.