Weather in Stone Park, IL
Stone Park, Sunday, 9 August, 00:55
Clear. Feels like 68°. High 87°, low 64°.
Monthly outlook for Stone Park, IL: average high 81.4°, average low 66.1°. That is 0.7° above the climate normal for August. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 24 August (88.7°), the coolest 21 August (58.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.1° | 80.3° | +1.6° |
| 19 August – 28 August | 78.7° | 80.3° | -0.9° |
| 29 August – 7 September | at normal | 78.5° | — |
August records over 66 years
0.67
Stone Park, Monday, 10 August
Heavy rain. High 88°, low 72°.
0.22Stone Park, Tuesday, 11 August
Heavy rain. High 87°, low 72°.
0
Stone Park, Wednesday, 12 August
Overcast. High 84°, low 70°.
0Stone Park, Thursday, 13 August
Overcast. High 75°, low 66°.
0
Stone Park, Friday, 14 August
Clear. High 82°, low 64°.
0Stone Park, Saturday, 15 August
Overcast. High 75°, low 67°.
0Stone Park, Sunday, 16 August
Overcast. High 80°, low 67°.
0Stone Park, Monday, 17 August
Overcast. High 85°, low 68°.
0Stone Park, Tuesday, 18 August
Overcast. High 87°, low 69°.
0.02Stone Park, Wednesday, 19 August
Light rain. High 79°, low 67°.
0Stone Park, Thursday, 20 August
Overcast. High 69°, low 60°.
0Stone Park, Friday, 21 August
Clear. High 78°, low 59°.
0.01Stone Park, Saturday, 22 August
Light rain. High 72°, low 61°.
0Stone Park, Sunday, 23 August
Clear. High 85°, low 65°.
0Stone Park, Monday, 24 August
Overcast. High 89°, low 67°.
0.07
Stone Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15Stone Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Stone Park, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13
Stone Park, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Stone Park, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13Stone Park, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08
Stone Park, Monday, 31 August
Climate normal for this date — 60-year average.
0.12Stone Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Stone Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Stone Park, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Stone Park, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Stone Park, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Stone Park, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Stone Park, Monday, 7 September
Climate normal for this date — 60-year average.
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 Stone Park, 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 Stone Park, 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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