Weather in Lake Carroll, IL
Lake Carroll, Sunday, 9 August, 16:55
Overcast. Feels like 89°. High 82°, low 63°.
Monthly outlook for Lake Carroll, IL: average high 80.5°, average low 65.5°. That is 0.4° above the climate normal for August. Precipitation is expected on 9 days (about 2.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 15 August (88.9°), the coolest 22 August (56.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.2° | 79.9° | +0.2° |
| 19 August – 28 August | 80.9° | 79.9° | +0.6° |
| 29 August – 7 September | at normal | 78° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Freeport (15 mi).
0.07
Lake Carroll, Monday, 10 August
Light rain. High 86°, low 71°.
0.35Lake Carroll, Tuesday, 11 August
Heavy rain. High 84°, low 69°.
0Lake Carroll, Wednesday, 12 August
Light rain. High 82°, low 66°.
0.54Lake Carroll, Thursday, 13 August
Rain. High 75°, low 65°.
0.29Lake Carroll, Friday, 14 August
Rain. High 75°, low 67°.
0.4Lake Carroll, Saturday, 15 August
Rain. High 89°, low 69°.
0Lake Carroll, Sunday, 16 August
Light rain. High 74°, low 66°.
0.12Lake Carroll, Monday, 17 August
Light rain. High 71°, low 61°.
0Lake Carroll, Tuesday, 18 August
Overcast. High 85°, low 67°.
0.02Lake Carroll, Wednesday, 19 August
Light rain. High 83°, low 66°.
0.35Lake Carroll, Thursday, 20 August
Rain. High 85°, low 69°.
0.11Lake Carroll, Friday, 21 August
Light rain. High 75°, low 64°.
0
Lake Carroll, Saturday, 22 August
Clear. High 77°, low 56°.
0Lake Carroll, Sunday, 23 August
Overcast. High 81°, low 61°.
0Lake Carroll, Monday, 24 August
Overcast. High 85°, low 67°.
0.1
Lake Carroll, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.18
Lake Carroll, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Lake Carroll, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Lake Carroll, Friday, 28 August
Climate normal for this date — 60-year average.
0.16Lake Carroll, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Lake Carroll, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Lake Carroll, Monday, 31 August
Climate normal for this date — 60-year average.
0.1Lake Carroll, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06Lake Carroll, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Lake Carroll, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Lake Carroll, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Lake Carroll, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Lake Carroll, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Lake Carroll, 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 Lake Carroll, 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 Lake Carroll, 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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