As of 20:41 EDT

Weather in Jefferson, PA

78°Current weather

Jefferson, Saturday, 8 August, 20:41

Overcast. Feels like 79°. High 85°, low 70°.

Pressure29.97 inHg
Wind4.8 mph SW
Humidity84%
Visibility6.2 mi
Dew point73°
Sun, 0986° / 71°0Clear
86 °Clear

Jefferson, Sunday, 9 August

Clear. High 86°, low 71°.

Pressure30.03 inHg
Wind9 mph NW
Humidity50%
Visibility6.2 mi
Dew point65°
Mon, 1087° / 71°0.08Rain
87 °Rain

Jefferson, Monday, 10 August

Rain. High 87°, low 71°.

Pressure30.00 inHg
Wind4 mph NW
Humidity57%
Visibility6.2 mi
Dew point65°
Tue, 1187° / 68°0.38Rain
87 °Rain

Jefferson, Tuesday, 11 August

Rain. High 87°, low 68°.

Pressure29.91 inHg
Wind7.5 mph W
Humidity64%
Visibility6.2 mi
Dew point68°
Wed, 1281° / 68°0.19Rain
81 °Rain

Jefferson, Wednesday, 12 August

Rain. High 81°, low 68°.

Pressure29.80 inHg
Wind10.6 mph W
Humidity65%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 64°0.01Light rain
83 °Light rain

Jefferson, Thursday, 13 August

Light rain. High 83°, low 64°.

Pressure29.80 inHg
Wind14.1 mph NW
Humidity54%
Visibility
Dew point63°
Fri, 1475° / 58°0Clear
75 °Clear

Jefferson, Friday, 14 August

Clear. High 75°, low 58°.

Pressure29.97 inHg
Wind10.2 mph NW
Humidity39%
Visibility
Dew point47°
Sat, 1576° / 52°0Clear
76 °Clear

Jefferson, Saturday, 15 August

Clear. High 76°, low 52°.

Pressure30.18 inHg
Wind12.9 mph NW
Humidity39%
Visibility
Dew point46°
Sun, 1676° / 52°0Clear
76 °Clear

Jefferson, Sunday, 16 August

Clear. High 76°, low 52°.

Pressure30.30 inHg
Wind5.7 mph NE
Humidity38%
Visibility
Dew point47°
Mon, 1779° / 56°0.01Light rain
79 °Light rain

Jefferson, Monday, 17 August

Light rain. High 79°, low 56°.

Pressure30.15 inHg
Wind9.9 mph S
Humidity59%
Visibility
Dew point61°
Tue, 1874° / 64°0.06Light rain
74 °Light rain

Jefferson, Tuesday, 18 August

Light rain. High 74°, low 64°.

Pressure29.97 inHg
Wind8.1 mph SW
Humidity83%
Visibility
Dew point66°
Wed, 1983° / 62°0Clear
83 °Clear

Jefferson, Wednesday, 19 August

Clear. High 83°, low 62°.

Pressure29.88 inHg
Wind10.3 mph N
Humidity42%
Visibility
Dew point55°
Thu, 2070° / 57°0Overcast
70 °Overcast

Jefferson, Thursday, 20 August

Overcast. High 70°, low 57°.

Pressure30.00 inHg
Wind4.5 mph SW
Humidity71%
Visibility
Dew point56°
Fri, 2170° / 62°0.8Heavy rain
70 °Heavy rain

Jefferson, Friday, 21 August

Heavy rain. High 70°, low 62°.

Pressure29.88 inHg
Wind5.4 mph E
Humidity98%
Visibility
Dew point67°
Sat, 2283° / 67°0.01Light rain
83 °Light rain

Jefferson, Saturday, 22 August

Light rain. High 83°, low 67°.

Pressure29.77 inHg
Wind10.4 mph W
Humidity46%
Visibility
Dew point57°
Sun, 2372° / 54°0Clear
72 °Clear

Jefferson, Sunday, 23 August

Clear. High 72°, low 54°.

Pressure30.03 inHg
Wind16.4 mph NW
Humidity38%
Visibility
Dew point42°

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.