San Jose, Sunday, 18 October, 04:31
Clear. Feels like 36°. High 64°, low 40°.
San Jose, Monday, 19 October
Clear. High 68°, low 41°.
San Jose, Tuesday, 20 October
Clear. High 68°, low 43°.
San Jose, Wednesday, 21 October
Clear. High 70°, low 44°.
San Jose, Thursday, 22 October
Clear. High 71°, low 51°.
San Jose, Friday, 23 October
Mostly clear. High 68°, low 51°.
San Jose, Saturday, 24 October
Overcast. High 77°, low 58°.
San Jose, Sunday, 25 October
Light rain. High 63°, low 48°.
San Jose, Monday, 26 October
Overcast. High 57°, low 42°.
San Jose, Tuesday, 27 October
Overcast. High 71°, low 51°.
San Jose, Wednesday, 28 October
Overcast. High 73°, low 58°.
San Jose, Thursday, 29 October
Overcast. High 71°, low 59°.
San Jose, Friday, 30 October
Clear. High 75°, low 54°.
San Jose, Saturday, 31 October
Rain. High 79°, low 59°.
San Jose, Sunday, 1 November
Partly cloudy. High 82°, low 62°.
San Jose, Monday, 2 November
Overcast. High 73°, low 60°.
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.