Weather in Centreville, IL
Centreville, Sunday, 9 August, 05:23
Mostly clear. Feels like 75°. High 96°, low 73°.
Monthly outlook for Centreville, IL: average high 98.9°, average low 74.5°. That is 7° above the climate normal for August. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 August (115.6°), the coolest 15 August (65.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 93° | 86.3° | +3.7° |
| 19 August – 28 August | 108.8° | 86.5° | +12.4° |
| 29 August – 7 September | at normal | 84.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — St. Louis (9 mi).
0.13
Centreville, Monday, 10 August
Rain. High 100°, low 72°.
0.03Centreville, Tuesday, 11 August
Light rain. High 102°, low 72°.
0.04Centreville, Wednesday, 12 August
Light rain. High 99°, low 77°.
0.2Centreville, Thursday, 13 August
Light rain. High 89°, low 72°.
0.13Centreville, Friday, 14 August
Light rain. High 77°, low 67°.
0.09Centreville, Saturday, 15 August
Light rain. High 90°, low 66°.
0
Centreville, Sunday, 16 August
Overcast. High 92°, low 71°.
0.07Centreville, Monday, 17 August
Light rain. High 89°, low 73°.
0.04Centreville, Tuesday, 18 August
Light rain. High 94°, low 69°.
0
Centreville, Wednesday, 19 August
Partly cloudy. High 108°, low 78°.
0
Centreville, Thursday, 20 August
Clear. High 116°, low 82°.
0Centreville, Friday, 21 August
Clear. High 107°, low 82°.
0
Centreville, Saturday, 22 August
Mostly clear. High 113°, low 81°.
0.04Centreville, Sunday, 23 August
Light rain. High 110°, low 79°.
0.01Centreville, Monday, 24 August
Light rain. High 100°, low 78°.
0.06Centreville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13Centreville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Centreville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08Centreville, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Centreville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Centreville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Centreville, Monday, 31 August
Climate normal for this date — 60-year average.
0.11
Centreville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Centreville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Centreville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13Centreville, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Centreville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Centreville, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Centreville, 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 Centreville, 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 Centreville, 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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