Grand Central, Sunday, 9 August, 03:19
Clear. Feels like 70°. High 84°, low 69°.
Grand Central, Monday, 10 August
Overcast. High 85°, low 69°.
Grand Central, Tuesday, 11 August
Heavy rain. High 85°, low 67°.
Grand Central, Wednesday, 12 August
Light rain. High 81°, low 66°.
Grand Central, Thursday, 13 August
Light rain. High 80°, low 60°.
Grand Central, Friday, 14 August
Clear. High 74°, low 53°.
Grand Central, Saturday, 15 August
Clear. High 75°, low 51°.
Grand Central, Sunday, 16 August
Overcast. High 78°, low 51°.
Grand Central, Monday, 17 August
Partly cloudy. High 77°, low 56°.
Grand Central, Tuesday, 18 August
Overcast. High 81°, low 59°.
Grand Central, Wednesday, 19 August
Partly cloudy. High 84°, low 63°.
Grand Central, Thursday, 20 August
Partly cloudy. High 86°, low 61°.
Grand Central, Friday, 21 August
Light rain. High 90°, low 65°.
Grand Central, Saturday, 22 August
Light rain. High 90°, low 68°.
Grand Central, Sunday, 23 August
Clear. High 93°, low 64°.
Grand Central, Monday, 24 August
Light rain. High 90°, low 70°.
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 Grand Central, 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 Grand Central, 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.