As of 22:09 EDT

Weather in Jefferson, PA

72°

Jefferson, Saturday, 8 August, 22:09

Partly cloudy. Feels like 73°. High 84°, low 68°.

Pressure30.06 inHg

Wind2 mph SE

Humidity90%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

Sun, 0985° / 68°

0.09

85 °

Jefferson, Sunday, 9 August

Rain. High 85°, low 68°.

Pressure30.09 inHg

Wind4.9 mph W

Humidity49%

Visibility6.2 mi

Dew point61°

Mon, 1090° / 65°

1.06

90 °

Jefferson, Monday, 10 August

Heavy rain. High 90°, low 65°.

Pressure30.03 inHg

Wind12.1 mph SW

Humidity84%

Visibility6.2 mi

Dew point69°

Tue, 1182° / 65°

0.22

82 °

Jefferson, Tuesday, 11 August

Rain. High 82°, low 65°.

Pressure29.97 inHg

Wind7.6 mph SW

Humidity67%

Visibility6.2 mi

Dew point66°

Wed, 1277° / 66°

0.27

77 °

Jefferson, Wednesday, 12 August

Rain. High 77°, low 66°.

Pressure29.83 inHg

Wind9.7 mph W

Humidity89%

Visibility6.2 mi

Dew point70°

Thu, 1375° / 60°

0.1

75 °

Jefferson, Thursday, 13 August

Light rain. High 75°, low 60°.

Pressure29.97 inHg

Wind10.6 mph NW

Humidity51%

Visibility—

Dew point54°

Fri, 1477° / 54°

77 °

Jefferson, Friday, 14 August

Partly cloudy. High 77°, low 54°.

Pressure30.06 inHg

Wind6.4 mph N

Humidity43%

Visibility—

Dew point51°

Sat, 1577° / 53°

77 °

Jefferson, Saturday, 15 August

Overcast. High 77°, low 53°.

Pressure30.24 inHg

Wind6.3 mph NW

Humidity45%

Visibility—

Dew point51°

Sun, 1681° / 53°

81 °

Jefferson, Sunday, 16 August

Partly cloudy. High 81°, low 53°.

Pressure30.15 inHg

Wind4.3 mph N

Humidity41%

Visibility—

Dew point52°

Mon, 1778° / 59°

0.02

78 °

Jefferson, Monday, 17 August

Light rain. High 78°, low 59°.

Pressure30.03 inHg

Wind4.7 mph N

Humidity56%

Visibility—

Dew point59°

Tue, 1883° / 59°

83 °

Jefferson, Tuesday, 18 August

Mostly clear. High 83°, low 59°.

Pressure30.00 inHg

Wind3.8 mph N

Humidity54%

Visibility—

Dew point62°

Wed, 1985° / 63°

0.25

85 °

Jefferson, Wednesday, 19 August

Rain. High 85°, low 63°.

Pressure29.85 inHg

Wind8.6 mph W

Humidity47%

Visibility—

Dew point60°

Thu, 2071° / 59°

0.11

71 °

Jefferson, Thursday, 20 August

Light rain. High 71°, low 59°.

Pressure29.85 inHg

Wind11.7 mph NW

Humidity61%

Visibility—

Dew point55°

Fri, 2175° / 53°

75 °

Jefferson, Friday, 21 August

Clear. High 75°, low 53°.

Pressure30.00 inHg

Wind7.9 mph NW

Humidity42%

Visibility—

Dew point47°

Sat, 2280° / 50°

0.01

80 °

Jefferson, Saturday, 22 August

Light rain. High 80°, low 50°.

Pressure30.03 inHg

Wind3.4 mph S

Humidity40%

Visibility—

Dew point49°

Sun, 2384° / 63°

0.06

84 °

Jefferson, Sunday, 23 August

Light rain. High 84°, low 63°.

Pressure29.94 inHg

Wind11.4 mph SW

Humidity71%

Visibility—

Dew point68°

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.