Arco, ID — every free forecast we can get, averaged to be a little more right. County seat of Butte 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 34° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 32° | 0% |
| US model (GFS) | 54° | 29° | 0% |
| European model (ECMWF) | 55° | 38° | 0% |
| German model (ICON) | 56° | 34° | 0% |
| Canadian model (GEM) | 55° | 35° | 0% |
| The average | 55° | 34° | 0% |
High 52° Low 38° Rain 73%
They disagree — a coin flip (highs spread 3°, rain spread 57 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 51° | 35° | 61% |
| US model (GFS) | 54° | 38° | 33% |
| European model (ECMWF) | 51° | 41° | 90% |
| German model (ICON) | 53° | 38° | 90% |
| Canadian model (GEM) | 52° | 35° | 90% |
| The average | 52° | 38° | 73% |
High 46° Low 32° Rain 83%
They disagree — a coin flip (highs spread 6°, rain spread 51 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 24° | 49% |
| US model (GFS) | 46° | 33° | 68% |
| European model (ECMWF) | 45° | 36° | 100% |
| German model (ICON) | 50° | 35° | 100% |
| Canadian model (GEM) | 47° | 29° | 100% |
| The average | 46° | 32° | 83% |
High 43° Low 31° Rain 1%
They agree — trust it (highs spread 3°, rain spread 7 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 42° | 27° | 7% |
| US model (GFS) | 42° | 31° | 0% |
| European model (ECMWF) | 43° | 36° | 0% |
| German model (ICON) | 44° | 32° | 0% |
| Canadian model (GEM) | 42° | 27° | 0% |
| The average | 43° | 31° | 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.