Jonesborough, TN — every free forecast we can get, averaged to be a little more right. County seat of Washington 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 55° Low 41° Rain 83%
They disagree — a coin flip (highs spread 3°, rain spread 61 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 36° | 39% |
| US model (GFS) | 54° | 42° | 74% |
| European model (ECMWF) | 55° | 43° | 100% |
| German model (ICON) | 57° | 43° | 100% |
| Canadian model (GEM) | 54° | 42° | 100% |
| The average | 55° | 41° | 83% |
High 43° Low 35° Rain 72%
They disagree — a coin flip (highs spread 1°, rain spread 47 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 43° | 31° | 65% |
| US model (GFS) | 42° | 36° | 53% |
| European model (ECMWF) | 43° | 36° | 100% |
| German model (ICON) | 43° | 36° | 83% |
| Canadian model (GEM) | 43° | 35° | 57% |
| The average | 43° | 35° | 72% |
High 41° Low 29° Rain 34%
They disagree — a coin flip (highs spread 3°, rain spread 70 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 42° | 27° | 6% |
| US model (GFS) | 41° | 30° | 11% |
| European model (ECMWF) | 42° | 30° | 76% |
| German model (ICON) | 39° | 35° | 65% |
| Canadian model (GEM) | 40° | 22° | 12% |
| The average | 41° | 29° | 34% |
High 46° Low 27° 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) | 45° | 27° | 0% |
| European model (ECMWF) | 46° | 29° | 0% |
| German model (ICON) | 46° | 33° | 0% |
| Canadian model (GEM) | 46° | 19° | 0% |
| The average | 46° | 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.