Weather in Cottage Hills, IL
Cottage Hills, Sunday, 9 August, 10:55
Partly cloudy. Feels like 97°. High 96°, low 72°.
Monthly outlook for Cottage Hills, IL: average high 90.2°, average low 69°. That is 2.7° above the climate normal for August. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (103.7°), the coolest 24 August (60°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 92.4° | 85.4° | +3.9° |
| 19 August – 28 August | 86.7° | 85.6° | +0.6° |
| 29 August – 7 September | at normal | 83.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Edwardsville (9 mi).
0
Cottage Hills, Monday, 10 August
Light rain. High 104°, low 74°.
0.01Cottage Hills, Tuesday, 11 August
Light rain. High 99°, low 75°.
0.02Cottage Hills, Wednesday, 12 August
Light rain. High 93°, low 76°.
0.26Cottage Hills, Thursday, 13 August
Rain. High 89°, low 71°.
0
Cottage Hills, Friday, 14 August
Overcast. High 85°, low 70°.
0Cottage Hills, Saturday, 15 August
Partly cloudy. High 91°, low 70°.
0Cottage Hills, Sunday, 16 August
Partly cloudy. High 88°, low 74°.
0Cottage Hills, Monday, 17 August
Overcast. High 81°, low 63°.
0.1Cottage Hills, Tuesday, 18 August
Light rain. High 97°, low 66°.
0Cottage Hills, Wednesday, 19 August
Partly cloudy. High 89°, low 70°.
0
Cottage Hills, Thursday, 20 August
Clear. High 81°, low 63°.
0
Cottage Hills, Friday, 21 August
Mostly clear. High 94°, low 64°.
0Cottage Hills, Saturday, 22 August
Clear. High 91°, low 73°.
0Cottage Hills, Sunday, 23 August
Clear. High 82°, low 61°.
0Cottage Hills, Monday, 24 August
Clear. High 82°, low 60°.
0.06Cottage Hills, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11Cottage Hills, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.14Cottage Hills, Thursday, 27 August
Climate normal for this date — 60-year average.
0.09Cottage Hills, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Cottage Hills, Saturday, 29 August
Climate normal for this date — 60-year average.
0.12Cottage Hills, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Cottage Hills, Monday, 31 August
Climate normal for this date — 60-year average.
0.12Cottage Hills, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1
Cottage Hills, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Cottage Hills, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Cottage Hills, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Cottage Hills, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Cottage Hills, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Cottage Hills, 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 Cottage Hills, 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 Cottage Hills, 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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