Weather in Pearl City, IL
Pearl City, Sunday, 9 August, 07:15
Mostly clear. Feels like 65°. High 82°, low 63°.
Monthly outlook for Pearl City, IL: average high 82°, average low 65.9°. That is 1.2° above the climate normal for August. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 20 August (93.1°), the coolest 14 August (57.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79° | 79.9° | -0.5° |
| 19 August – 28 August | 87.1° | 79.9° | +4° |
| 29 August – 7 September | at normal | 78° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Freeport (10 mi).
0.11
Pearl City, Monday, 10 August
Rain. High 87°, low 71°.
0.03Pearl City, Tuesday, 11 August
Light rain. High 83°, low 71°.
0
Pearl City, Wednesday, 12 August
Overcast. High 82°, low 67°.
0.03Pearl City, Thursday, 13 August
Light rain. High 74°, low 60°.
0Pearl City, Friday, 14 August
Overcast. High 74°, low 57°.
0.01Pearl City, Saturday, 15 August
Light rain. High 74°, low 58°.
0.04Pearl City, Sunday, 16 August
Light rain. High 76°, low 64°.
0Pearl City, Monday, 17 August
Overcast. High 80°, low 64°.
0.02Pearl City, Tuesday, 18 August
Light rain. High 78°, low 62°.
0Pearl City, Wednesday, 19 August
Overcast. High 87°, low 69°.
0
Pearl City, Thursday, 20 August
Partly cloudy. High 93°, low 77°.
0
Pearl City, Friday, 21 August
Clear. High 85°, low 70°.
0Pearl City, Saturday, 22 August
Clear. High 90°, low 66°.
0.01Pearl City, Sunday, 23 August
Light rain. High 87°, low 72°.
0.08Pearl City, Monday, 24 August
Light rain. High 79°, low 64°.
0.1Pearl City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.18
Pearl City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Pearl City, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Pearl City, Friday, 28 August
Climate normal for this date — 60-year average.
0.16Pearl City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Pearl City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Pearl City, Monday, 31 August
Climate normal for this date — 60-year average.
0.1Pearl City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06Pearl City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Pearl City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Pearl City, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Pearl City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Pearl City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Pearl City, 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 Pearl City, 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 Pearl City, 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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