Weather in Dunes Park, IL
Dunes Park, Saturday, 8 August, 23:20
Clear. Feels like 67°. High 83°, low 66°.
Monthly outlook for Dunes Park, IL: average high 75.5°, average low 63.7°. That is 1.4° below the climate normal for August. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (83.2°), the coolest 20 August (56.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 77° | 78.1° | -0.7° |
| 18 August – 27 August | 73° | 77.8° | -2.7° |
| 28 August – 6 September | at normal | 76.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (15 mi).
1.37
Dunes Park, Sunday, 9 August
Heavy rain. High 81°, low 64°.
0.56Dunes Park, Monday, 10 August
Rain. High 83°, low 70°.
0.76Dunes Park, Tuesday, 11 August
Heavy rain. High 77°, low 69°.
0.02Dunes Park, Wednesday, 12 August
Light rain. High 80°, low 67°.
0
Dunes Park, Thursday, 13 August
Overcast. High 69°, low 65°.
0
Dunes Park, Friday, 14 August
Clear. High 73°, low 60°.
0Dunes Park, Saturday, 15 August
Overcast. High 73°, low 62°.
0Dunes Park, Sunday, 16 August
Overcast. High 72°, low 61°.
0Dunes Park, Monday, 17 August
Light rain. High 79°, low 65°.
0Dunes Park, Tuesday, 18 August
Overcast. High 82°, low 68°.
0Dunes Park, Wednesday, 19 August
Overcast. High 73°, low 63°.
0Dunes Park, Thursday, 20 August
Overcast. High 67°, low 56°.
0Dunes Park, Friday, 21 August
Clear. High 70°, low 56°.
0.07Dunes Park, Saturday, 22 August
Light rain. High 67°, low 63°.
0Dunes Park, Sunday, 23 August
Light rain. High 79°, low 66°.
0.11
Dunes Park, Monday, 24 August
Climate normal for this date — 60-year average.
0.07Dunes Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.14
Dunes Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1Dunes Park, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12Dunes Park, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Dunes Park, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Dunes Park, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Dunes Park, Monday, 31 August
Climate normal for this date — 60-year average.
0.1Dunes Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Dunes Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Dunes Park, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08Dunes Park, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Dunes Park, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Dunes Park, Sunday, 6 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 Dunes 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 Dunes 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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