Weather in Jefferson, PA
Jefferson, Saturday, 8 August, 18:58
Overcast. Feels like 79°. High 78°, low 64°.
0
Jefferson, Sunday, 9 August
Clear. High 79°, low 64°.
0.05
Jefferson, Monday, 10 August
Light rain. High 80°, low 63°.
0.96Jefferson, Tuesday, 11 August
Heavy rain. High 83°, low 63°.
0.22Jefferson, Wednesday, 12 August
Rain. High 75°, low 62°.
0.07Jefferson, Thursday, 13 August
Light rain. High 72°, low 53°.
0Jefferson, Friday, 14 August
Clear. High 67°, low 47°.
0
Jefferson, Saturday, 15 August
Partly cloudy. High 66°, low 43°.
0Jefferson, Sunday, 16 August
Clear. High 71°, low 44°.
0Jefferson, Monday, 17 August
Light rain. High 74°, low 51°.
0.07Jefferson, Tuesday, 18 August
Light rain. High 73°, low 60°.
0Jefferson, Wednesday, 19 August
Overcast. High 71°, low 53°.
0Jefferson, Thursday, 20 August
Overcast. High 74°, low 50°.
0.95Jefferson, Friday, 21 August
Rain. High 60°, low 55°.
0Jefferson, Saturday, 22 August
Overcast. High 76°, low 55°.
0Jefferson, Sunday, 23 August
Partly cloudy. High 62°, low 44°.
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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