As of 08:03 EDT

Weather in London, PA

69°

London, Sunday, 9 August, 08:03

Clear. Feels like 70°. High 85°, low 67°.

Pressure30.06 inHg

Wind4.2 mph W

Humidity99%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

Mon, 1081° / 68°

1.41

81 °

London, Monday, 10 August

Heavy rain. High 81°, low 68°.

Pressure29.97 inHg

Wind10.5 mph SW

Humidity69%

Visibility6.2 mi

Dew point66°

Tue, 1182° / 60°

0.94

82 °

London, Tuesday, 11 August

Heavy rain. High 82°, low 60°.

Pressure29.94 inHg

Wind6.4 mph W

Humidity71%

Visibility6.2 mi

Dew point67°

Wed, 1279° / 62°

0.04

79 °

London, Wednesday, 12 August

Light rain. High 79°, low 62°.

Pressure29.80 inHg

Wind7.3 mph W

Humidity94%

Visibility6.2 mi

Dew point67°

Thu, 1371° / 57°

0.12

71 °

London, Thursday, 13 August

Light rain. High 71°, low 57°.

Pressure29.91 inHg

Wind14.4 mph NW

Humidity51%

Visibility—

Dew point51°

Fri, 1469° / 51°

69 °

London, Friday, 14 August

Overcast. High 69°, low 51°.

Pressure30.09 inHg

Wind11.1 mph NW

Humidity55%

Visibility—

Dew point50°

Sat, 1569° / 49°

69 °

London, Saturday, 15 August

Overcast. High 69°, low 49°.

Pressure30.27 inHg

Wind8.8 mph NW

Humidity50%

Visibility—

Dew point47°

Sun, 1668° / 51°

68 °

London, Sunday, 16 August

Overcast. High 68°, low 51°.

Pressure30.18 inHg

Wind5.5 mph E

Humidity62%

Visibility—

Dew point49°

Mon, 1774° / 53°

74 °

London, Monday, 17 August

Light rain. High 74°, low 53°.

Pressure30.03 inHg

Wind5.6 mph NW

Humidity49%

Visibility—

Dew point51°

Tue, 1877° / 57°

77 °

London, Tuesday, 18 August

Mostly clear. High 77°, low 57°.

Pressure30.06 inHg

Wind6.2 mph NW

Humidity50%

Visibility—

Dew point54°

Wed, 1979° / 57°

79 °

London, Wednesday, 19 August

Mostly clear. High 79°, low 57°.

Pressure30.06 inHg

Wind4.6 mph E

Humidity53%

Visibility—

Dew point58°

Thu, 2086° / 63°

86 °

London, Thursday, 20 August

Mostly clear. High 86°, low 63°.

Pressure29.94 inHg

Wind10.1 mph SW

Humidity47%

Visibility—

Dew point60°

Fri, 2192° / 65°

0.07

92 °

London, Friday, 21 August

Light rain. High 92°, low 65°.

Pressure29.83 inHg

Wind8.3 mph N

Humidity58%

Visibility—

Dew point71°

Sat, 2285° / 62°

85 °

London, Saturday, 22 August

Mostly clear. High 85°, low 62°.

Pressure29.97 inHg

Wind6.9 mph NE

Humidity41%

Visibility—

Dew point56°

Sun, 2392° / 67°

0.1

92 °

London, Sunday, 23 August

Light rain. High 92°, low 67°.

Pressure29.94 inHg

Wind8.6 mph S

Humidity56%

Visibility—

Dew point67°

Mon, 2484° / 72°

0.12

84 °

London, Monday, 24 August

Light rain. High 84°, low 72°.

Pressure30.00 inHg

Wind9.8 mph NW

Humidity66%

Visibility—

Dew point70°

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 London, 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 London, 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.