Sunbury, PA — every free forecast we can get, averaged to be a little more right. County seat of Northumberland County.
Updated Friday, November 13, 2026. Recorded fresh this morning from five free sources, and graded later against what the weather actually did.
← All cities and the scoreboard
High 53° Low 39° Rain 95%
Pretty close — fairly safe (highs spread 4°, rain spread 19 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 35° | 81% |
| US model (GFS) | 51° | 40° | 92% |
| European model (ECMWF) | 55° | 40° | 100% |
| German model (ICON) | 53° | 40° | 100% |
| Canadian model (GEM) | 54° | 40° | 100% |
| The average | 53° | 39° | 95% |
High 41° Low 35° Rain 82%
They disagree — a coin flip (highs spread 2°, rain spread 43 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 42° | 32° | 67% |
| US model (GFS) | 40° | 35° | 57% |
| European model (ECMWF) | 40° | 36° | 99% |
| German model (ICON) | 40° | 37° | 100% |
| Canadian model (GEM) | 41° | 36° | 87% |
| The average | 41° | 35° | 82% |
High 44° Low 34° Rain 7%
They agree — trust it (highs spread 2°, rain spread 14 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 45° | 32° | 2% |
| US model (GFS) | 43° | 32° | 7% |
| European model (ECMWF) | 46° | 36° | 4% |
| German model (ICON) | 45° | 34° | 8% |
| Canadian model (GEM) | 43° | 36° | 16% |
| The average | 44° | 34° | 7% |
High 45° Low 34° Rain 2%
They agree — trust it (highs spread 3°, rain spread 8 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 47° | 31° | 0% |
| US model (GFS) | 44° | 33° | 0% |
| European model (ECMWF) | 45° | 38° | 8% |
| German model (ICON) | 46° | 38° | 0% |
| Canadian model (GEM) | 45° | 33° | 0% |
| The average | 45° | 34° | 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.