EN
English Español

As of 15:33 EDT

Weather in South Londonderry, PA

89°Current weather

South Londonderry, Sunday, 9 August, 15:33

Clear. Feels like 93°. High 89°, low 71°.

Pressure29.97 inHg
Wind5 mph NW
Humidity51%
Visibility6.2 mi
Dew point68°
Mon, 1084° / 71°0.02Light rain
84 °Light rain

South Londonderry, Monday, 10 August

Light rain. High 84°, low 71°.

Pressure29.97 inHg
Wind6.1 mph SW
Humidity55%
Visibility6.2 mi
Dew point66°
Tue, 1188° / 70°0.18Rain
88 °Rain

South Londonderry, Tuesday, 11 August

Rain. High 88°, low 70°.

Pressure29.91 inHg
Wind6.8 mph NW
Humidity58%
Visibility6.2 mi
Dew point67°
Wed, 1283° / 66°0.07Light rain
83 °Light rain

South Londonderry, Wednesday, 12 August

Light rain. High 83°, low 66°.

Pressure29.77 inHg
Wind14.4 mph W
Humidity64%
Visibility6.2 mi
Dew point66°
Thu, 1382° / 66°0Overcast
82 °Overcast

South Londonderry, Thursday, 13 August

Overcast. High 82°, low 66°.

Pressure29.91 inHg
Wind12.1 mph NW
Humidity41%
Visibility6.2 mi
Dew point55°
Fri, 1480° / 61°0Overcast
80 °Overcast

South Londonderry, Friday, 14 August

Overcast. High 80°, low 61°.

Pressure30.09 inHg
Wind6.6 mph S
Humidity50%
Visibility—
Dew point55°
Sat, 1581° / 60°0Overcast
81 °Overcast

South Londonderry, Saturday, 15 August

Overcast. High 81°, low 60°.

Pressure30.15 inHg
Wind8.7 mph SW
Humidity54%
Visibility—
Dew point60°
Sun, 16102° / 68°0.08Light rain
102 °Light rain

South Londonderry, Sunday, 16 August

Light rain. High 102°, low 68°.

Pressure29.80 inHg
Wind19.6 mph W
Humidity45%
Visibility—
Dew point66°
Mon, 1783° / 64°0Partly cloudy
83 °Partly cloudy

South Londonderry, Monday, 17 August

Partly cloudy. High 83°, low 64°.

Pressure29.97 inHg
Wind13.5 mph NW
Humidity38%
Visibility—
Dew point51°
Tue, 1888° / 62°0.04Light rain
88 °Light rain

South Londonderry, Tuesday, 18 August

Light rain. High 88°, low 62°.

Pressure30.03 inHg
Wind14.1 mph S
Humidity37%
Visibility—
Dew point56°
Wed, 1992° / 68°0.28Rain
92 °Rain

South Londonderry, Wednesday, 19 August

Rain. High 92°, low 68°.

Pressure29.88 inHg
Wind15 mph W
Humidity39%
Visibility—
Dew point60°
Thu, 2088° / 61°0.01Light rain
88 °Light rain

South Londonderry, Thursday, 20 August

Light rain. High 88°, low 61°.

Pressure29.94 inHg
Wind6.8 mph SE
Humidity34%
Visibility—
Dew point52°
Fri, 2187° / 68°0.07Light rain
87 °Light rain

South Londonderry, Friday, 21 August

Light rain. High 87°, low 68°.

Pressure29.77 inHg
Wind11 mph NW
Humidity58%
Visibility—
Dew point65°
Sat, 2282° / 67°0.34Rain
82 °Rain

South Londonderry, Saturday, 22 August

Rain. High 82°, low 67°.

Pressure29.91 inHg
Wind8.1 mph E
Humidity55%
Visibility—
Dew point62°
Sun, 2383° / 64°0.06Light rain
83 °Light rain

South Londonderry, Sunday, 23 August

Light rain. High 83°, low 64°.

Pressure30.00 inHg
Wind7.7 mph SE
Humidity59%
Visibility—
Dew point65°
Mon, 2491° / 67°0Mostly clear
91 °Mostly clear

South Londonderry, Monday, 24 August

Mostly clear. High 91°, low 67°.

Pressure29.94 inHg
Wind10.7 mph NW
Humidity40%
Visibility—
Dew point60°

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 South Londonderry, 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 South Londonderry, 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.