Weather in Sugar Grove, IL
Sugar Grove, Sunday, 9 August, 02:03
Clear. Feels like 64°. High 84°, low 62°.
Monthly outlook for Sugar Grove, IL: average high 81.9°, average low 65.5°. That is 1° above the climate normal for August. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 August (90.5°), the coolest 14 August (57.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.2° | 80.1° | -0.5° |
| 19 August – 28 August | 86.4° | 80.2° | +3.5° |
| 29 August – 7 September | at normal | 78.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Aurora (8 mi).
0.26
Sugar Grove, Monday, 10 August
Rain. High 90°, low 71°.
0.11Sugar Grove, Tuesday, 11 August
Rain. High 81°, low 69°.
0.01Sugar Grove, Wednesday, 12 August
Light rain. High 82°, low 67°.
0.04Sugar Grove, Thursday, 13 August
Light rain. High 75°, low 62°.
0
Sugar Grove, Friday, 14 August
Overcast. High 75°, low 57°.
0.04Sugar Grove, Saturday, 15 August
Light rain. High 74°, low 60°.
0.02Sugar Grove, Sunday, 16 August
Light rain. High 75°, low 62°.
0.02Sugar Grove, Monday, 17 August
Light rain. High 80°, low 64°.
0Sugar Grove, Tuesday, 18 August
Overcast. High 77°, low 63°.
0.1Sugar Grove, Wednesday, 19 August
Light rain. High 85°, low 65°.
0Sugar Grove, Thursday, 20 August
Overcast. High 86°, low 74°.
0
Sugar Grove, Friday, 21 August
Clear. High 85°, low 71°.
0Sugar Grove, Saturday, 22 August
Clear. High 90°, low 67°.
0.02Sugar Grove, Sunday, 23 August
Light rain. High 90°, low 69°.
0.07Sugar Grove, Monday, 24 August
Light rain. High 82°, low 66°.
0.09
Sugar Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.18
Sugar Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13Sugar Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13Sugar Grove, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Sugar Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Sugar Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08
Sugar Grove, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Sugar Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.05Sugar Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Sugar Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Sugar Grove, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Sugar Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1Sugar Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Sugar Grove, 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 Sugar Grove, 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 Sugar Grove, 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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