Manchester, IA — every free forecast we can get, averaged to be a little more right. County seat of Delaware 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 42° Low 32° Rain 3%
They agree — trust it (highs spread 0°, rain spread 6 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 28° | 0% |
| US model (GFS) | 42° | 33° | 0% |
| European model (ECMWF) | 42° | 34° | 6% |
| German model (ICON) | 42° | 32° | 5% |
| Canadian model (GEM) | 42° | 32° | 5% |
| The average | 42° | 32° | 3% |
High 40° Low 25° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 41° | 22° | 0% |
| US model (GFS) | 40° | 27° | 0% |
| European model (ECMWF) | 39° | 27° | 0% |
| German model (ICON) | 40° | 28° | 0% |
| Canadian model (GEM) | 41° | 23° | 0% |
| The average | 40° | 25° | 0% |
High 43° Low 25° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 24° | 0% |
| US model (GFS) | 43° | 26° | 0% |
| European model (ECMWF) | 42° | 26° | 0% |
| German model (ICON) | 43° | 28° | 0% |
| Canadian model (GEM) | 43° | 20° | 0% |
| The average | 43° | 25° | 0% |
High 46° Low 26° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 47° | 26° | 0% |
| US model (GFS) | 47° | 31° | 0% |
| European model (ECMWF) | 46° | 28° | 0% |
| German model (ICON) | 47° | 29° | 0% |
| Canadian model (GEM) | 45° | 17° | 0% |
| The average | 46° | 26° | 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.