Spring Valley, Saturday, 10 October, 08:00
Clear. Feels like 59°. High 81°, low 60°.
Spring Valley, Sunday, 11 October
Clear. High 76°, low 55°.
Spring Valley, Monday, 12 October
Overcast. High 83°, low 61°.
Spring Valley, Tuesday, 13 October
Clear. High 80°, low 67°.
Spring Valley, Wednesday, 14 October
Rain. High 70°, low 58°.
Spring Valley, Thursday, 15 October
Light rain. High 60°, low 53°.
Spring Valley, Friday, 16 October
Overcast. High 62°, low 49°.
Spring Valley, Saturday, 17 October
Light rain. High 48°, low 40°.
Spring Valley, Sunday, 18 October
Clear. High 47°, low 32°.
Spring Valley, Monday, 19 October
Overcast. High 52°, low 35°.
Spring Valley, Tuesday, 20 October
Overcast. High 59°, low 39°.
Spring Valley, Wednesday, 21 October
Clear. High 64°, low 42°.
Spring Valley, Thursday, 22 October
Clear. High 69°, low 45°.
Spring Valley, Friday, 23 October
Light rain. High 62°, low 53°.
Spring Valley, Saturday, 24 October
Light rain. High 62°, low 48°.
Spring Valley, Sunday, 25 October
Clear. High 54°, low 44°.
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 Spring Valley, 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 Spring Valley, 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.