Furnace Run, Sunday, 9 August, 04:45
Clear. Feels like 68°. High 86°, low 67°.
Furnace Run, Monday, 10 August
Heavy rain. High 81°, low 66°.
Furnace Run, Tuesday, 11 August
Heavy rain. High 85°, low 62°.
Furnace Run, Wednesday, 12 August
Light rain. High 81°, low 64°.
Furnace Run, Thursday, 13 August
Light rain. High 75°, low 57°.
Furnace Run, Friday, 14 August
Partly cloudy. High 72°, low 51°.
Furnace Run, Saturday, 15 August
Overcast. High 72°, low 49°.
Furnace Run, Sunday, 16 August
Overcast. High 67°, low 49°.
Furnace Run, Monday, 17 August
Partly cloudy. High 78°, low 52°.
Furnace Run, Tuesday, 18 August
Clear. High 80°, low 57°.
Furnace Run, Wednesday, 19 August
Mostly clear. High 83°, low 56°.
Furnace Run, Thursday, 20 August
Clear. High 88°, low 60°.
Furnace Run, Friday, 21 August
Light rain. High 94°, low 68°.
Furnace Run, Saturday, 22 August
Mostly clear. High 90°, low 64°.
Furnace Run, Sunday, 23 August
Light rain. High 93°, low 65°.
Furnace Run, Monday, 24 August
Rain. High 91°, low 72°.
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 Furnace Run, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Furnace Run, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.