Weather in East St. Louis, IL
East St. Louis, Sunday, 9 August, 10:52
Mostly clear. Feels like 95°. High 97°, low 72°.
Monthly outlook for East St. Louis, IL: average high 94.6°, average low 70.9°. That is 4.6° above the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (102.5°), the coolest 24 August (61.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 96.9° | 86.3° | +5.9° |
| 19 August – 28 August | 90.7° | 86.5° | +2.4° |
| 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 (6 mi).
0
East St. Louis, Monday, 10 August
Clear. High 102°, low 76°.
0
East St. Louis, Tuesday, 11 August
Overcast. High 102°, low 78°.
0.04
East St. Louis, Wednesday, 12 August
Light rain. High 98°, low 76°.
0.13East St. Louis, Thursday, 13 August
Light rain. High 97°, low 73°.
0East St. Louis, Friday, 14 August
Overcast. High 90°, low 72°.
0
East St. Louis, Saturday, 15 August
Partly cloudy. High 100°, low 71°.
0East St. Louis, Sunday, 16 August
Clear. High 97°, low 78°.
0East St. Louis, Monday, 17 August
Overcast. High 85°, low 66°.
0.13East St. Louis, Tuesday, 18 August
Light rain. High 102°, low 67°.
0East St. Louis, Wednesday, 19 August
Mostly clear. High 95°, low 73°.
0East St. Louis, Thursday, 20 August
Clear. High 85°, low 65°.
0.08East St. Louis, Friday, 21 August
Light rain. High 99°, low 66°.
0East St. Louis, Saturday, 22 August
Clear. High 95°, low 76°.
0East St. Louis, Sunday, 23 August
Clear. High 85°, low 64°.
0East St. Louis, Monday, 24 August
Clear. High 86°, low 61°.
0.06East St. Louis, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13East St. Louis, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12East St. Louis, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08East St. Louis, Friday, 28 August
Climate normal for this date — 60-year average.
0.07East St. Louis, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11East St. Louis, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11East St. Louis, Monday, 31 August
Climate normal for this date — 60-year average.
0.11
East St. Louis, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12East St. Louis, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1East St. Louis, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13East St. Louis, Friday, 4 September
Climate normal for this date — 60-year average.
0.05East St. Louis, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05East St. Louis, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1East St. Louis, 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 East St. Louis, 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 East St. Louis, 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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