Donaldsonville, LA — every free forecast we can get, averaged to be a little more right. County seat of Ascension Parish.
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 76° Low 53° Rain 0%
They agree — trust it (highs spread 3°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 48° | 0% |
| US model (GFS) | 77° | 56° | 0% |
| European model (ECMWF) | 74° | 56° | 0% |
| German model (ICON) | 76° | 56° | 0% |
| Canadian model (GEM) | 77° | 51° | 0% |
| The average | 76° | 53° | 0% |
High 70° Low 46° Rain 0%
Pretty close — fairly safe (highs spread 5°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 70° | 40° | 0% |
| US model (GFS) | 70° | 49° | 0% |
| European model (ECMWF) | 67° | 49° | 0% |
| German model (ICON) | 69° | 46° | 0% |
| Canadian model (GEM) | 72° | 46° | 0% |
| The average | 70° | 46° | 0% |
High 62° Low 42° Rain 0%
Pretty close — fairly safe (highs spread 3°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 63° | 42° | 0% |
| US model (GFS) | 62° | 42° | 0% |
| European model (ECMWF) | 60° | 44° | 0% |
| German model (ICON) | 63° | 40° | 0% |
| Canadian model (GEM) | 63° | 41° | 0% |
| The average | 62° | 42° | 0% |
High 67° Low 46° Rain 36%
They disagree — a coin flip (highs spread 6°, rain spread 32 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 67° | 49° | 49% |
| US model (GFS) | 69° | 47° | 27% |
| European model (ECMWF) | 64° | 48° | 51% |
| German model (ICON) | 66° | 45° | 35% |
| Canadian model (GEM) | 66° | 40° | 19% |
| The average | 67° | 46° | 36% |
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.