Weather in Jefferson, PA
Jefferson, Saturday, 8 August, 17:31
Overcast. Feels like 84°. High 81°, low 68°.
0.04
Jefferson, Sunday, 9 August
Light rain. High 83°, low 67°.
0.09Jefferson, Monday, 10 August
Rain. High 86°, low 66°.
0.39Jefferson, Tuesday, 11 August
Rain. High 86°, low 66°.
0.06Jefferson, Wednesday, 12 August
Light rain. High 80°, low 64°.
0.04Jefferson, Thursday, 13 August
Light rain. High 81°, low 61°.
0
Jefferson, Friday, 14 August
Clear. High 74°, low 55°.
0Jefferson, Saturday, 15 August
Clear. High 73°, low 49°.
0Jefferson, Sunday, 16 August
Clear. High 77°, low 49°.
0Jefferson, Monday, 17 August
Overcast. High 80°, low 54°.
0.13Jefferson, Tuesday, 18 August
Light rain. High 76°, low 62°.
0
Jefferson, Wednesday, 19 August
Partly cloudy. High 76°, low 59°.
0Jefferson, Thursday, 20 August
Overcast. High 66°, low 54°.
0.26Jefferson, Friday, 21 August
Rain. High 66°, low 59°.
0
Jefferson, Saturday, 22 August
Mostly clear. High 81°, low 63°.
0Jefferson, Sunday, 23 August
Clear. High 69°, low 52°.
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.
Sun and moon today
Weather history
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