Weather in Rock Island, IL
Rock Island, Wednesday, 11 November, 03:44
Clear. Feels like 40°. High 57°, low 43°.
Monthly outlook for Rock Island, IL: average high 46.3°, average low 33.1°. That is 0° below the climate normal for November. Precipitation is expected on 5 days (about 2.6 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 19 November (59.2°), the coolest 24 November (19°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 50.3° | 47.6° | +1.5° |
| 21 November – 30 November | 39.7° | 42.7° | -1.7° |
| 1 December – 10 December | at normal | 36.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Davenport (6 mi).
0
Rock Island, Thursday, 12 November
Light rain. High 49°, low 38°.
0
Rock Island, Friday, 13 November
Overcast. High 41°, low 31°.
0
Rock Island, Saturday, 14 November
Clear. High 44°, low 28°.
0Rock Island, Sunday, 15 November
Clear. High 47°, low 26°.
0Rock Island, Monday, 16 November
Clear. High 50°, low 31°.
0Rock Island, Tuesday, 17 November
Clear. High 51°, low 35°.
0Rock Island, Wednesday, 18 November
Overcast. High 52°, low 37°.
0.04Rock Island, Thursday, 19 November
Light rain. High 59°, low 45°.
1.55Rock Island, Friday, 20 November
Heavy rain. High 54°, low 48°.
0.49Rock Island, Saturday, 21 November
Rain. High 49°, low 37°.
0Rock Island, Sunday, 22 November
Overcast. High 37°, low 26°.
0.07
Rock Island, Monday, 23 November
Light snow. High 27°, low 21°.
0
Rock Island, Tuesday, 24 November
Mostly clear. High 35°, low 19°.
0Rock Island, Wednesday, 25 November
Overcast. High 43°, low 29°.
0Rock Island, Thursday, 26 November
Clear. High 47°, low 34°.
0.15
Rock Island, Friday, 27 November
Climate normal for this date — 60-year average.
0.09
Rock 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.
0.11Rock 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.
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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