West Decatur, Sunday, 9 August, 10:11
Clear. Feels like 76°. High 82°, low 65°.
West Decatur, Monday, 10 August
Rain. High 81°, low 62°.
West Decatur, Tuesday, 11 August
Heavy rain. High 76°, low 60°.
West Decatur, Wednesday, 12 August
Light rain. High 74°, low 60°.
West Decatur, Thursday, 13 August
Light rain. High 75°, low 61°.
West Decatur, Friday, 14 August
Overcast. High 73°, low 51°.
West Decatur, Saturday, 15 August
Overcast. High 69°, low 47°.
West Decatur, Sunday, 16 August
Light rain. High 59°, low 47°.
West Decatur, Monday, 17 August
Overcast. High 74°, low 55°.
West Decatur, Tuesday, 18 August
Overcast. High 78°, low 51°.
West Decatur, Wednesday, 19 August
Light rain. High 81°, low 61°.
West Decatur, Thursday, 20 August
Overcast. High 66°, low 52°.
West Decatur, Friday, 21 August
Overcast. High 73°, low 48°.
West Decatur, Saturday, 22 August
Rain. High 82°, low 52°.
West Decatur, Sunday, 23 August
Light rain. High 72°, low 53°.
West Decatur, Monday, 24 August
Clear. High 72°, low 46°.
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 West Decatur, 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 West Decatur, 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.