West Chester, PA — every free forecast we can get, averaged to be a little more right. County seat of Chester 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 59° Low 46° Rain 92%
They disagree — a coin flip (highs spread 8°, rain spread 30 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 37° | 70% |
| US model (GFS) | 59° | 48° | 88% |
| European model (ECMWF) | 58° | 49° | 100% |
| German model (ICON) | 56° | 47° | 100% |
| Canadian model (GEM) | 64° | 47° | 100% |
| The average | 59° | 46° | 92% |
High 47° Low 35° Rain 88%
Pretty close — fairly safe (highs spread 5°, rain spread 25 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 32° | 79% |
| US model (GFS) | 48° | 34° | 75% |
| European model (ECMWF) | 49° | 35° | 100% |
| German model (ICON) | 47° | 37° | 88% |
| Canadian model (GEM) | 47° | 36° | 96% |
| The average | 47° | 35° | 88% |
High 45° Low 34° Rain 29%
They disagree — a coin flip (highs spread 4°, rain spread 52 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 33° | 1% |
| US model (GFS) | 44° | 34° | 26% |
| European model (ECMWF) | 46° | 34° | 19% |
| German model (ICON) | 46° | 34° | 53% |
| Canadian model (GEM) | 43° | 36° | 46% |
| The average | 45° | 34° | 29% |
High 47° Low 35° Rain 0%
Pretty close — fairly safe (highs spread 3°, rain spread 2 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 32° | 0% |
| US model (GFS) | 46° | 37° | 0% |
| European model (ECMWF) | 46° | 38° | 2% |
| German model (ICON) | 48° | 37° | 0% |
| Canadian model (GEM) | 48° | 34° | 0% |
| The average | 47° | 35° | 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.