Arrowhead Lake, Monday, 19 October, 13:04
Clear. Feels like 59°. High 62°, low 31°.
Arrowhead Lake, Tuesday, 20 October
Clear. High 64°, low 35°.
Arrowhead Lake, Wednesday, 21 October
Clear. High 58°, low 32°.
Arrowhead Lake, Thursday, 22 October
Overcast. High 55°, low 35°.
Arrowhead Lake, Friday, 23 October
Mostly clear. High 47°, low 35°.
Arrowhead Lake, Saturday, 24 October
Clear. High 50°, low 30°.
Arrowhead Lake, Sunday, 25 October
Clear. High 56°, low 35°.
Arrowhead Lake, Monday, 26 October
Overcast. High 60°, low 41°.
Arrowhead Lake, Tuesday, 27 October
Light rain. High 60°, low 50°.
Arrowhead Lake, Wednesday, 28 October
Snow. High 58°, low 31°.
Arrowhead Lake, Thursday, 29 October
Overcast. High 40°, low 27°.
Arrowhead Lake, Friday, 30 October
Clear. High 45°, low 28°.
Arrowhead Lake, Saturday, 31 October
Overcast. High 53°, low 38°.
Arrowhead Lake, Sunday, 1 November
Rain. High 53°, low 43°.
Arrowhead Lake, Monday, 2 November
Light rain. High 53°, low 51°.
Arrowhead Lake, Tuesday, 3 November
Heavy rain. High 50°, low 42°.
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 Arrowhead Lake, 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 Arrowhead Lake, 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.