Spring Valley, Monday, 12 October, 16:58
Overcast. Feels like 89°. High 87°, low 62°.
Spring Valley, Tuesday, 13 October
Heavy rain. High 82°, low 65°.
Spring Valley, Wednesday, 14 October
Rain. High 72°, low 59°.
Spring Valley, Thursday, 15 October
Heavy rain. High 62°, low 58°.
Spring Valley, Friday, 16 October
Light rain. High 57°, low 47°.
Spring Valley, Saturday, 17 October
Clear. High 59°, low 38°.
Spring Valley, Sunday, 18 October
Clear. High 62°, low 43°.
Spring Valley, Monday, 19 October
Overcast. High 66°, low 45°.
Spring Valley, Tuesday, 20 October
Light rain. High 70°, low 57°.
Spring Valley, Wednesday, 21 October
Clear. High 74°, low 57°.
Spring Valley, Thursday, 22 October
Overcast. High 69°, low 62°.
Spring Valley, Friday, 23 October
Overcast. High 74°, low 66°.
Spring Valley, Saturday, 24 October
Light rain. High 70°, low 47°.
Spring Valley, Sunday, 25 October
Overcast. High 52°, low 45°.
Spring Valley, Monday, 26 October
Clear. High 58°, low 42°.
Spring Valley, Tuesday, 27 October
Overcast. High 64°, low 47°.
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.