Rock Island, IL — every free forecast we can get, averaged to be a little more right. County seat of Rock Island County.
Updated Friday, November 13, 2026. Recorded fresh this morning from five free sources, and graded later against what the weather actually did.
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High 46° Low 35° Rain 8%
Pretty close — fairly safe (highs spread 2°, rain spread 29 points, 3 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 30° | 0% |
| US model (GFS) | 45° | 34° | 0% |
| European model (ECMWF) | 45° | 38° | 4% |
| Canadian model (GEM) | 47° | 36° | 29% |
| The average | 46° | 35° | 8% |
High 42° Low 29° Rain 0%
They agree — trust it (highs spread 2°, rain spread 1 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 43° | 26° | 0% |
| US model (GFS) | 43° | 30° | 1% |
| European model (ECMWF) | 41° | 32° | 0% |
| Canadian model (GEM) | 43° | 28° | 0% |
| The average | 42° | 29° | 0% |
High 44° Low 26° Rain 0%
Pretty close — fairly safe (highs spread 3°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 27° | 0% |
| US model (GFS) | 45° | 26° | 0% |
| European model (ECMWF) | 44° | 30° | 0% |
| Canadian model (GEM) | 43° | 21° | 0% |
| The average | 44° | 26° | 0% |
High 47° Low 27° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 48° | 29° | 0% |
| US model (GFS) | 49° | 34° | 0% |
| European model (ECMWF) | 47° | 31° | 0% |
| Canadian model (GEM) | 46° | 14° | 0% |
| The average | 47° | 27° | 0% |
Scoring has started — every forecast is being recorded. The first grades land once the historical record publishes what actually happened (it runs a few days behind), and this board fills in from there.