San Jose, Wednesday, 21 October, 01:23
Clear. Feels like 46°. High 74°, low 46°.
San Jose, Thursday, 22 October
Clear. High 75°, low 48°.
San Jose, Friday, 23 October
Clear. High 72°, low 51°.
San Jose, Saturday, 24 October
Overcast. High 71°, low 51°.
San Jose, Sunday, 25 October
Overcast. High 75°, low 52°.
San Jose, Monday, 26 October
Light rain. High 73°, low 51°.
San Jose, Tuesday, 27 October
Light rain. High 48°, low 43°.
San Jose, Wednesday, 28 October
Clear. High 51°, low 36°.
San Jose, Thursday, 29 October
Clear. High 56°, low 37°.
San Jose, Friday, 30 October
Clear. High 59°, low 39°.
San Jose, Saturday, 31 October
Mostly clear. High 63°, low 42°.
San Jose, Sunday, 1 November
Rain. High 58°, low 49°.
San Jose, Monday, 2 November
Clear. High 64°, low 52°.
San Jose, Tuesday, 3 November
Overcast. High 55°, low 41°.
San Jose, Wednesday, 4 November
Overcast. High 53°, low 45°.
San Jose, Thursday, 5 November
Clear. High 58°, low 43°.
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 San Jose, IL 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 San Jose, IL 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.