Weather in Wilton, IL
Wilton, Saturday, 8 August, 15:45
Clear. Feels like 87°. High 84°, low 69°.
Monthly outlook for Wilton, IL: average high 78°, average low 62.9°. That is 1.6° below the climate normal for August. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (86.8°), the coolest 23 August (49.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 78.4° | 81° | -1.4° |
| 18 August – 27 August | 77.3° | 81° | -2° |
| 28 August – 6 September | at normal | 79.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Joliet (15 mi).
1.31
Wilton, Sunday, 9 August
Heavy rain. High 83°, low 65°.
0.07Wilton, Monday, 10 August
Light rain. High 83°, low 72°.
0.24Wilton, Tuesday, 11 August
Rain. High 87°, low 71°.
0Wilton, Wednesday, 12 August
Light rain. High 77°, low 68°.
0.02Wilton, Thursday, 13 August
Light rain. High 71°, low 62°.
0Wilton, Friday, 14 August
Clear. High 73°, low 58°.
0
Wilton, Saturday, 15 August
Overcast. High 73°, low 54°.
0
Wilton, Sunday, 16 August
Mostly clear. High 75°, low 56°.
0.05Wilton, Monday, 17 August
Light rain. High 77°, low 67°.
0Wilton, Tuesday, 18 August
Overcast. High 83°, low 65°.
0.39Wilton, Wednesday, 19 August
Rain. High 81°, low 63°.
0.17Wilton, Thursday, 20 August
Light rain. High 79°, low 65°.
0Wilton, Friday, 21 August
Light rain. High 79°, low 63°.
0.02Wilton, Saturday, 22 August
Light rain. High 76°, low 60°.
0Wilton, Sunday, 23 August
Mostly clear. High 65°, low 50°.
0.12
Wilton, Monday, 24 August
Climate normal for this date — 60-year average.
0.11Wilton, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.17
Wilton, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Wilton, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Wilton, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Wilton, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Wilton, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Wilton, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Wilton, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06Wilton, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Wilton, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Wilton, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Wilton, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Wilton, 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 Wilton, 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 Wilton, 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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