Weather in Rock Island, IL
Rock Island, Thursday, 12 November, 14:55
Overcast. Feels like 34°. High 44°, low 37°.
Monthly outlook for Rock Island, IL: average high 50.3°, average low 38.8°. That is 2.4° above the climate normal for November. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 21 November (64.6°), the coolest 27 November (26.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 52.2° | 47.3° | +2.8° |
| 22 November – 1 December | 47° | 42.1° | +2.7° |
| 2 December – 11 December | at normal | 36.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Davenport (6 mi).
0Rock Island, Friday, 13 November
Overcast. High 41°, low 32°.
0
Rock Island, Saturday, 14 November
Clear. High 44°, low 28°.
0Rock Island, Sunday, 15 November
Clear. High 46°, low 28°.
0Rock Island, Monday, 16 November
Clear. High 50°, low 31°.
0Rock Island, Tuesday, 17 November
Clear. High 53°, low 34°.
0
Rock Island, Wednesday, 18 November
Light rain. High 59°, low 39°.
0.03Rock Island, Thursday, 19 November
Light rain. High 64°, low 52°.
0.47Rock Island, Friday, 20 November
Rain. High 57°, low 53°.
0.14Rock Island, Saturday, 21 November
Rain. High 65°, low 50°.
0.32Rock Island, Sunday, 22 November
Light rain. High 59°, low 53°.
0.54Rock Island, Monday, 23 November
Rain. High 62°, low 55°.
0.03Rock Island, Tuesday, 24 November
Light rain. High 53°, low 41°.
0
Rock Island, Wednesday, 25 November
Partly cloudy. High 37°, low 31°.
0Rock Island, Thursday, 26 November
Overcast. High 37°, low 32°.
0Rock Island, Friday, 27 November
Clear. High 34°, low 27°.
0.09Rock Island, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Rock Island, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Rock Island, Monday, 30 November
Climate normal for this date — 60-year average.
0.11
Rock Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Rock Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Rock Island, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Rock Island, Friday, 4 December
Climate normal for this date — 60-year average.
0.08Rock Island, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Rock Island, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Rock Island, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Rock Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Rock Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Rock Island, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Rock Island, Friday, 11 December
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, 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 Rock Island, 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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