Weather in San Jose, IL
San Jose, Saturday, 8 August, 21:47
Clear. Feels like 73°. High 86°, low 70°.
0
San Jose, Sunday, 9 August
Clear. High 93°, low 69°.
0
San Jose, Monday, 10 August
Overcast. High 94°, low 75°.
0.18
San Jose, Tuesday, 11 August
Rain. High 96°, low 72°.
0.33San Jose, Wednesday, 12 August
Rain. High 83°, low 72°.
0.41San Jose, Thursday, 13 August
Rain. High 80°, low 65°.
0San Jose, Friday, 14 August
Overcast. High 79°, low 63°.
0.09San Jose, Saturday, 15 August
Light rain. High 69°, low 63°.
0.01San Jose, Sunday, 16 August
Light rain. High 74°, low 63°.
0.02San Jose, Monday, 17 August
Light rain. High 81°, low 63°.
0San Jose, Tuesday, 18 August
Overcast. High 85°, low 65°.
0.01San Jose, Wednesday, 19 August
Light rain. High 78°, low 62°.
0.01San Jose, Thursday, 20 August
Light rain. High 73°, low 54°.
0San Jose, Friday, 21 August
Overcast. High 74°, low 52°.
0.06San Jose, Saturday, 22 August
Light rain. High 84°, low 60°.
0San Jose, Sunday, 23 August
Clear. High 93°, low 66°.
About the monthly outlook
How accurate is a 30-day forecast?
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.
What does "above normal" mean?
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.
Where do the 66-year records come from?
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.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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