As of 07:56 EDT

Weather in Jefferson, PA

67°Current weather

Jefferson, Sunday, 9 August, 07:56

Partly cloudy. Feels like 68°. High 80°, low 65°.

Pressure30.12 inHg
Wind1 mph W
Humidity97%
Visibility<0.1 mi
Dew point66°
Mon, 1080° / 62°0.27Rain
80 °Rain

Jefferson, Monday, 10 August

Rain. High 80°, low 62°.

Pressure30.03 inHg
Wind10.1 mph SW
Humidity76%
Visibility6.2 mi
Dew point66°
Tue, 1178° / 62°1.43Heavy rain
78 °Heavy rain

Jefferson, Tuesday, 11 August

Heavy rain. High 78°, low 62°.

Pressure30.00 inHg
Wind7.5 mph W
Humidity86%
Visibility6.2 mi
Dew point64°
Wed, 1271° / 62°0.04Light rain
71 °Light rain

Jefferson, Wednesday, 12 August

Light rain. High 71°, low 62°.

Pressure29.83 inHg
Wind9.1 mph W
Humidity91%
Visibility6.2 mi
Dew point66°
Thu, 1372° / 55°0.02Light rain
72 °Light rain

Jefferson, Thursday, 13 August

Light rain. High 72°, low 55°.

Pressure29.91 inHg
Wind13.7 mph NW
Humidity51%
Visibility
Dew point51°
Fri, 1468° / 48°0Overcast
68 °Overcast

Jefferson, Friday, 14 August

Overcast. High 68°, low 48°.

Pressure30.09 inHg
Wind8.9 mph NW
Humidity54%
Visibility
Dew point48°
Sat, 1567° / 48°0Overcast
67 °Overcast

Jefferson, Saturday, 15 August

Overcast. High 67°, low 48°.

Pressure30.24 inHg
Wind8.9 mph NW
Humidity46%
Visibility
Dew point43°
Sun, 1667° / 48°0Overcast
67 °Overcast

Jefferson, Sunday, 16 August

Overcast. High 67°, low 48°.

Pressure30.18 inHg
Wind4.3 mph W
Humidity71%
Visibility
Dew point51°
Mon, 1772° / 51°0Partly cloudy
72 °Partly cloudy

Jefferson, Monday, 17 August

Partly cloudy. High 72°, low 51°.

Pressure30.00 inHg
Wind6.6 mph NW
Humidity50%
Visibility
Dew point51°
Tue, 1875° / 55°0Clear
75 °Clear

Jefferson, Tuesday, 18 August

Clear. High 75°, low 55°.

Pressure30.03 inHg
Wind6.7 mph NW
Humidity47%
Visibility
Dew point51°
Wed, 1979° / 56°0Partly cloudy
79 °Partly cloudy

Jefferson, Wednesday, 19 August

Partly cloudy. High 79°, low 56°.

Pressure30.06 inHg
Wind3 mph NW
Humidity45%
Visibility
Dew point54°
Thu, 2085° / 60°0Partly cloudy
85 °Partly cloudy

Jefferson, Thursday, 20 August

Partly cloudy. High 85°, low 60°.

Pressure29.97 inHg
Wind5.5 mph SW
Humidity42%
Visibility
Dew point56°
Fri, 2188° / 69°0.01Light rain
88 °Light rain

Jefferson, Friday, 21 August

Light rain. High 88°, low 69°.

Pressure29.85 inHg
Wind10.8 mph W
Humidity54%
Visibility
Dew point67°
Sat, 2286° / 65°0Mostly clear
86 °Mostly clear

Jefferson, Saturday, 22 August

Mostly clear. High 86°, low 65°.

Pressure29.97 inHg
Wind5.5 mph N
Humidity37%
Visibility
Dew point55°
Sun, 2390° / 66°0Clear
90 °Clear

Jefferson, Sunday, 23 August

Clear. High 90°, low 66°.

Pressure29.94 inHg
Wind6 mph W
Humidity39%
Visibility
Dew point59°
Mon, 2486° / 73°0.03Light rain
86 °Light rain

Jefferson, Monday, 24 August

Light rain. High 86°, low 73°.

Pressure30.03 inHg
Wind12.8 mph W
Humidity65%
Visibility
Dew point69°

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 Jefferson, 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 Jefferson, 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.