Chillicothe, OH — every free forecast we can get, averaged to be a little more right. County seat of Ross 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 52° Low 42° Rain 90%
Pretty close — fairly safe (highs spread 3°, rain spread 22 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 39° | 78% |
| US model (GFS) | 51° | 43° | 79% |
| European model (ECMWF) | 54° | 42° | 100% |
| German model (ICON) | 53° | 44° | 95% |
| Canadian model (GEM) | 51° | 40° | 100% |
| The average | 52° | 42° | 90% |
High 45° Low 34° Rain 67%
They disagree — a coin flip (highs spread 2°, rain spread 75 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 29° | 25% |
| US model (GFS) | 45° | 36° | 60% |
| European model (ECMWF) | 46° | 36° | 100% |
| German model (ICON) | 45° | 36° | 70% |
| Canadian model (GEM) | 45° | 35° | 79% |
| The average | 45° | 34° | 67% |
High 45° Low 32° Rain 7%
Pretty close — fairly safe (highs spread 3°, rain spread 25 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 32° | 1% |
| US model (GFS) | 45° | 32° | 3% |
| European model (ECMWF) | 46° | 32° | 2% |
| German model (ICON) | 45° | 32° | 5% |
| Canadian model (GEM) | 44° | 30° | 26% |
| The average | 45° | 32° | 7% |
High 47° Low 34° Rain 1%
Pretty close — fairly safe (highs spread 4°, rain spread 2 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 48° | 30° | 0% |
| US model (GFS) | 48° | 39° | 0% |
| European model (ECMWF) | 46° | 36° | 2% |
| German model (ICON) | 48° | 36° | 1% |
| Canadian model (GEM) | 45° | 30° | 0% |
| The average | 47° | 34° | 1% |
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.