Marietta, GA — every free forecast we can get, averaged to be a little more right. County seat of Cobb 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 62° Low 47° Rain 45%
They disagree — a coin flip (highs spread 2°, rain spread 92 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 40° | 0% |
| US model (GFS) | 64° | 48° | 29% |
| European model (ECMWF) | 62° | 50° | 92% |
| German model (ICON) | 61° | 47° | 35% |
| Canadian model (GEM) | 63° | 48° | 71% |
| The average | 62° | 47° | 45% |
High 51° Low 38° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 52° | 36° | 0% |
| US model (GFS) | 51° | 37° | 0% |
| European model (ECMWF) | 50° | 40° | 0% |
| German model (ICON) | 50° | 37° | 0% |
| Canadian model (GEM) | 50° | 38° | 0% |
| The average | 51° | 38° | 0% |
High 51° Low 34° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 52° | 31° | 0% |
| US model (GFS) | 53° | 33° | 0% |
| European model (ECMWF) | 49° | 36° | 0% |
| German model (ICON) | 52° | 34° | 0% |
| Canadian model (GEM) | 49° | 34° | 0% |
| The average | 51° | 34° | 0% |
High 54° Low 33° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 1 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 55° | 36° | 1% |
| US model (GFS) | 56° | 40° | 0% |
| European model (ECMWF) | 52° | 31° | 0% |
| German model (ICON) | 54° | 31° | 0% |
| Canadian model (GEM) | 52° | 25° | 0% |
| The average | 54° | 33° | 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.