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As of 05:07 EDT

Weather in Gretna, PA

66°Current weather

Gretna, Sunday, 9 August, 05:07

Clear. Feels like 67°. High 84°, low 66°.

Pressure30.03 inHg
Wind5.9 mph W
Humidity95%
Visibility6.2 mi
Dew point66°

Two-week outlook for Gretna, PA: week one averages a high of 78.2° and week two 81.8°, so week two runs 3.6° warmer than week one. Around 2.1 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, August 9: 84°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)78.2°60.3°2.1 in / 4 d—
2nd (August 16 – August 22)81.8°59.4°0.0 in / 0 d—

Weekend weather

Sun, August 9
Light rain
84°66°
no precip.
Sat, August 15
Overcast
71°52°
no precip.
Sun, August 16
Light rain
67°51°
0.03 in
Sat, August 22
Mostly clear
89°63°
no precip.
Mon, 1082° / 67°0.72Heavy rain
82 °Heavy rain

Gretna, Monday, 10 August

Heavy rain. High 82°, low 67°.

Pressure30.00 inHg
Wind9.4 mph SW
Humidity81%
Visibility6.2 mi
Dew point69°
Tue, 1183° / 63°1.2Heavy rain
83 °Heavy rain

Gretna, Tuesday, 11 August

Heavy rain. High 83°, low 63°.

Pressure29.97 inHg
Wind9.1 mph SW
Humidity83%
Visibility6.2 mi
Dew point67°
Wed, 1278° / 63°0.1Light rain
78 °Light rain

Gretna, Wednesday, 12 August

Light rain. High 78°, low 63°.

Pressure29.83 inHg
Wind8.7 mph SW
Humidity95%
Visibility6.2 mi
Dew point69°
Thu, 1376° / 57°0.07Light rain
76 °Light rain

Gretna, Thursday, 13 August

Light rain. High 76°, low 57°.

Pressure29.91 inHg
Wind13.6 mph NW
Humidity50%
Visibility—
Dew point55°
Fri, 1473° / 52°0Overcast
73 °Overcast

Gretna, Friday, 14 August

Overcast. High 73°, low 52°.

Pressure30.09 inHg
Wind8.3 mph N
Humidity54%
Visibility—
Dew point52°
Sat, 1571° / 52°0Overcast
71 °Overcast

Gretna, Saturday, 15 August

Overcast. High 71°, low 52°.

Pressure30.24 inHg
Wind7.9 mph N
Humidity48%
Visibility—
Dew point47°
Sun, 1667° / 51°0.03Light rain
67 °Light rain

Gretna, Sunday, 16 August

Light rain. High 67°, low 51°.

Pressure30.18 inHg
Wind5.1 mph E
Humidity88%
Visibility—
Dew point55°
Mon, 1776° / 52°0Partly cloudy
76 °Partly cloudy

Gretna, Monday, 17 August

Partly cloudy. High 76°, low 52°.

Pressure30.03 inHg
Wind5 mph N
Humidity53%
Visibility—
Dew point54°
Tue, 1880° / 58°0Clear
80 °Clear

Gretna, Tuesday, 18 August

Clear. High 80°, low 58°.

Pressure30.06 inHg
Wind5 mph NE
Humidity51%
Visibility—
Dew point56°
Wed, 1981° / 58°0Partly cloudy
81 °Partly cloudy

Gretna, Wednesday, 19 August

Partly cloudy. High 81°, low 58°.

Pressure30.06 inHg
Wind4 mph E
Humidity50%
Visibility—
Dew point58°
Thu, 2088° / 62°0Mostly clear
88 °Mostly clear

Gretna, Thursday, 20 August

Mostly clear. High 88°, low 62°.

Pressure29.97 inHg
Wind8.3 mph S
Humidity46%
Visibility—
Dew point60°
Fri, 2192° / 72°0Mostly clear
92 °Mostly clear

Gretna, Friday, 21 August

Mostly clear. High 92°, low 72°.

Pressure29.83 inHg
Wind8.9 mph SW
Humidity55%
Visibility—
Dew point71°
Sat, 2289° / 63°0Mostly clear
89 °Mostly clear

Gretna, Saturday, 22 August

Mostly clear. High 89°, low 63°.

Pressure29.94 inHg
Wind6.7 mph NE
Humidity39%
Visibility—
Dew point57°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Gretna, PA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.