Weather in South Elgin, IL
South Elgin, Sunday, 9 August, 01:02
Clear. Feels like 65°. High 87°, low 63°.
Monthly outlook for South Elgin, IL: average high 76.7°, average low 60.7°. That is 1.7° below the climate normal for August. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (87.4°), the coolest 20 August (51.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 78.9° | 79.8° | -0.5° |
| 19 August – 28 August | 73.2° | 79.9° | -3.7° |
| 29 August – 7 September | at normal | 78.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Elgin (3 mi).
0.62
South Elgin, Monday, 10 August
Heavy rain. High 86°, low 70°.
0.12South Elgin, Tuesday, 11 August
Rain. High 84°, low 68°.
0.02South Elgin, Wednesday, 12 August
Light rain. High 79°, low 65°.
0
South Elgin, Thursday, 13 August
Overcast. High 73°, low 60°.
0
South Elgin, Friday, 14 August
Mostly clear. High 76°, low 58°.
0South Elgin, Saturday, 15 August
Overcast. High 70°, low 60°.
0South Elgin, Sunday, 16 August
Overcast. High 75°, low 60°.
0.01South Elgin, Monday, 17 August
Light rain. High 77°, low 63°.
0South Elgin, Tuesday, 18 August
Overcast. High 80°, low 64°.
0.02South Elgin, Wednesday, 19 August
Light rain. High 73°, low 58°.
0South Elgin, Thursday, 20 August
Overcast. High 66°, low 51°.
0
South Elgin, Friday, 21 August
Clear. High 73°, low 53°.
0.01South Elgin, Saturday, 22 August
Light rain. High 69°, low 55°.
0South Elgin, Sunday, 23 August
Clear. High 79°, low 62°.
0South Elgin, Monday, 24 August
Overcast. High 79°, low 59°.
0.08
South Elgin, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.16
South Elgin, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11South Elgin, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13South Elgin, Friday, 28 August
Climate normal for this date — 60-year average.
0.13South Elgin, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11South Elgin, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09South Elgin, Monday, 31 August
Climate normal for this date — 60-year average.
0.12South Elgin, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04South Elgin, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09South Elgin, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1South Elgin, Friday, 4 September
Climate normal for this date — 60-year average.
0.07South Elgin, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12South Elgin, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09South Elgin, 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 South Elgin, 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 South Elgin, 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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