Chester Hill, Sunday, 9 August, 01:03
Partly cloudy. Feels like 71°. High 84°, low 67°.
Chester Hill, Monday, 10 August
Light rain. High 80°, low 65°.
Chester Hill, Tuesday, 11 August
Rain. High 83°, low 65°.
Chester Hill, Wednesday, 12 August
Light rain. High 82°, low 63°.
Chester Hill, Thursday, 13 August
Partly cloudy. High 74°, low 56°.
Chester Hill, Friday, 14 August
Clear. High 75°, low 49°.
Chester Hill, Saturday, 15 August
Clear. High 76°, low 50°.
Chester Hill, Sunday, 16 August
Overcast. High 78°, low 51°.
Chester Hill, Monday, 17 August
Overcast. High 77°, low 60°.
Chester Hill, Tuesday, 18 August
Light rain. High 76°, low 59°.
Chester Hill, Wednesday, 19 August
Rain. High 80°, low 61°.
Chester Hill, Thursday, 20 August
Light rain. High 68°, low 57°.
Chester Hill, Friday, 21 August
Mostly clear. High 73°, low 49°.
Chester Hill, Saturday, 22 August
Overcast. High 76°, low 47°.
Chester Hill, Sunday, 23 August
Light rain. High 82°, low 57°.
Chester Hill, Monday, 24 August
Clear. High 79°, low 64°.
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 Chester Hill, 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 Chester Hill, 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.