Weather in Oak Grove, IL
Oak Grove, Sunday, 9 August, 02:23
Overcast. Feels like 66°. High 92°, low 65°.
Monthly outlook for Oak Grove, IL: average high 85.4°, average low 68.7°. That is 2.4° above the climate normal for August. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 August (95.3°), the coolest 15 August (61.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.1° | 81° | +0.6° |
| 19 August – 28 August | 90.8° | 81.2° | +5.4° |
| 29 August – 7 September | at normal | 79.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Davenport (10 mi).
0.01
Oak Grove, Monday, 10 August
Light rain. High 90°, low 70°.
0.02Oak Grove, Tuesday, 11 August
Light rain. High 91°, low 71°.
0.08Oak Grove, Wednesday, 12 August
Light rain. High 84°, low 69°.
0.07Oak Grove, Thursday, 13 August
Light rain. High 76°, low 62°.
1.43Oak Grove, Friday, 14 August
Heavy rain. High 73°, low 62°.
0.04Oak Grove, Saturday, 15 August
Light rain. High 72°, low 61°.
0.02Oak Grove, Sunday, 16 August
Light rain. High 78°, low 66°.
0Oak Grove, Monday, 17 August
Overcast. High 82°, low 65°.
0Oak Grove, Tuesday, 18 August
Overcast. High 83°, low 66°.
0Oak Grove, Wednesday, 19 August
Overcast. High 92°, low 73°.
0Oak Grove, Thursday, 20 August
Overcast. High 91°, low 77°.
0
Oak Grove, Friday, 21 August
Partly cloudy. High 87°, low 75°.
0
Oak Grove, Saturday, 22 August
Clear. High 95°, low 70°.
0.01Oak Grove, Sunday, 23 August
Light rain. High 93°, low 79°.
0.3Oak Grove, Monday, 24 August
Rain. High 87°, low 69°.
0.12
Oak Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.19Oak Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Oak Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Oak Grove, Friday, 28 August
Climate normal for this date — 60-year average.
0.09Oak Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Oak Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Oak Grove, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Oak Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Oak Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Oak Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Oak Grove, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Oak Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Oak Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Oak 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 Oak 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 Oak 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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