Weather in Rock Island, TN
Rock Island, Sunday, 9 August, 05:44
Overcast. Feels like 73°. High 85°, low 71°.
Monthly outlook for Rock Island, TN: average high 92.3°, average low 72.6°. That is 5.4° above the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 23 August (99.3°), the coolest 19 August (68.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 90.1° | 82.4° | +4.3° |
| 19 August – 28 August | 95.9° | 82.5° | +7.5° |
| 29 August – 7 September | at normal | 80.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Spencer (10 mi).
0.09
Rock Island, Monday, 10 August
Light rain. High 92°, low 71°.
0.1Rock Island, Tuesday, 11 August
Light rain. High 89°, low 70°.
0.03Rock Island, Wednesday, 12 August
Light rain. High 90°, low 73°.
0.36Rock Island, Thursday, 13 August
Rain. High 88°, low 71°.
0.35Rock Island, Friday, 14 August
Light rain. High 92°, low 73°.
0.02Rock Island, Saturday, 15 August
Light rain. High 92°, low 72°.
0
Rock Island, Sunday, 16 August
Mostly clear. High 97°, low 74°.
0Rock Island, Monday, 17 August
Overcast. High 91°, low 75°.
0Rock Island, Tuesday, 18 August
Mostly clear. High 86°, low 71°.
0Rock Island, Wednesday, 19 August
Overcast. High 90°, low 68°.
0Rock Island, Thursday, 20 August
Mostly clear. High 94°, low 72°.
0
Rock Island, Friday, 21 August
Clear. High 98°, low 77°.
0Rock Island, Saturday, 22 August
Clear. High 98°, low 76°.
0.02Rock Island, Sunday, 23 August
Light rain. High 99°, low 73°.
0.01Rock Island, Monday, 24 August
Light rain. High 96°, low 74°.
0.07
Rock Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.14Rock Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1
Rock 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.
0.09Rock Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13Rock Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.1Rock Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Rock Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Rock Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13Rock Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Rock Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.14Rock Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.08Rock Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Rock 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, TN 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, TN 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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