Williamsport, PA — every free forecast we can get, averaged to be a little more right. County seat of Lycoming 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 50° Low 38° Rain 97%
They agree — trust it (highs spread 2°, rain spread 12 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 34° | 88% |
| US model (GFS) | 49° | 40° | 98% |
| European model (ECMWF) | 51° | 38° | 100% |
| German model (ICON) | 50° | 40° | 100% |
| Canadian model (GEM) | 52° | 41° | 100% |
| The average | 50° | 38° | 97% |
High 40° Low 35° Rain 79%
They disagree — a coin flip (highs spread 1°, rain spread 37 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 41° | 31° | 64% |
| US model (GFS) | 40° | 35° | 57% |
| European model (ECMWF) | 40° | 36° | 94% |
| German model (ICON) | 40° | 36° | 93% |
| Canadian model (GEM) | 41° | 36° | 87% |
| The average | 40° | 35° | 79% |
High 44° Low 34° Rain 6%
They agree — trust it (highs spread 3°, rain spread 14 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 32° | 2% |
| US model (GFS) | 43° | 32° | 3% |
| European model (ECMWF) | 46° | 35° | 2% |
| German model (ICON) | 44° | 35° | 5% |
| Canadian model (GEM) | 43° | 34° | 16% |
| The average | 44° | 34° | 6% |
High 45° Low 35° Rain 2%
They agree — trust it (highs spread 3°, rain spread 6 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 31° | 2% |
| US model (GFS) | 43° | 32° | 0% |
| European model (ECMWF) | 46° | 37° | 6% |
| German model (ICON) | 44° | 38° | 3% |
| Canadian model (GEM) | 44° | 36° | 0% |
| The average | 45° | 35° | 2% |
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.