Weather in Plattville, IL
Plattville, Saturday, 8 August, 22:29
Clear. Feels like 69°. High 83°, low 69°.
Monthly outlook for Plattville, IL: average high 76.8°, average low 61.9°. That is 2.3° below the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (89.2°), the coolest 20 August (52.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 78.6° | 81° | -1.3° |
| 18 August – 27 August | 73.7° | 81° | -4° |
| 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 (12 mi).
0.11
Plattville, Sunday, 9 August
Light rain. High 89°, low 63°.
0.13Plattville, Monday, 10 August
Rain. High 88°, low 71°.
0.06Plattville, Tuesday, 11 August
Rain. High 83°, low 72°.
0.03Plattville, Wednesday, 12 August
Light rain. High 80°, low 67°.
0.01Plattville, Thursday, 13 August
Light rain. High 73°, low 62°.
0
Plattville, Friday, 14 August
Clear. High 77°, low 60°.
0.03Plattville, Saturday, 15 August
Light rain. High 64°, low 58°.
0
Plattville, Sunday, 16 August
Overcast. High 72°, low 61°.
0Plattville, Monday, 17 August
Overcast. High 76°, low 63°.
0Plattville, Tuesday, 18 August
Overcast. High 81°, low 65°.
0.05Plattville, Wednesday, 19 August
Light rain. High 71°, low 58°.
0.01Plattville, Thursday, 20 August
Light rain. High 63°, low 52°.
0
Plattville, Friday, 21 August
Partly cloudy. High 73°, low 52°.
0Plattville, Saturday, 22 August
Overcast. High 73°, low 55°.
0Plattville, Sunday, 23 August
Clear. High 80°, low 64°.
0.12Plattville, Monday, 24 August
Climate normal for this date — 60-year average.
0.11Plattville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.17
Plattville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Plattville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Plattville, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Plattville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Plattville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Plattville, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Plattville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06Plattville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Plattville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Plattville, Friday, 4 September
Climate normal for this date — 60-year average.
0.06
Plattville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Plattville, 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 Plattville, 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 Plattville, 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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