Weather in Rock Island, OK
Rock Island, Sunday, 9 August, 13:56
Clear. Feels like 100°. High 97°, low 74°.
Monthly outlook for Rock Island, OK: average high 105.3°, average low 77°. That is 8° above the climate normal for August. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 20 August (112.2°), the coolest 24 August (70.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 104.9° | 90.8° | +7.9° |
| 19 August – 28 August | 105.9° | 91° | +8.3° |
| 29 August – 7 September | at normal | 88.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Fort Smith (13 mi).
0Rock Island, Monday, 10 August
Clear. High 100°, low 74°.
0Rock Island, Tuesday, 11 August
Clear. High 105°, low 76°.
0
Rock Island, Wednesday, 12 August
Partly cloudy. High 106°, low 81°.
0Rock Island, Thursday, 13 August
Partly cloudy. High 105°, low 79°.
0Rock Island, Friday, 14 August
Partly cloudy. High 105°, low 78°.
0Rock Island, Saturday, 15 August
Clear. High 107°, low 77°.
0Rock Island, Sunday, 16 August
Partly cloudy. High 109°, low 81°.
0Rock Island, Monday, 17 August
Clear. High 108°, low 77°.
0Rock Island, Tuesday, 18 August
Clear. High 108°, low 78°.
0Rock Island, Wednesday, 19 August
Clear. High 110°, low 79°.
0Rock Island, Thursday, 20 August
Clear. High 112°, low 81°.
0
Rock Island, Friday, 21 August
Light rain. High 98°, low 81°.
0.02Rock Island, Saturday, 22 August
Light rain. High 109°, low 74°.
0.02Rock Island, Sunday, 23 August
Light rain. High 108°, low 72°.
0.11Rock Island, Monday, 24 August
Light rain. High 99°, low 70°.
0.05
Rock Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Rock Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.07Rock Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.09Rock Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.04Rock Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Rock Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Rock Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.11Rock Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.19
Rock Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.15Rock Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.07Rock Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.09Rock Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.04Rock Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.04Rock Island, 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 Rock Island, OK 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 Rock Island, OK 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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