Saint Charles, MO — every free forecast we can get, averaged to be a little more right. County seat of St. Charles 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 50° Low 36° Rain 5%
Pretty close — fairly safe (highs spread 2°, rain spread 19 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 33° | 0% |
| US model (GFS) | 50° | 36° | 0% |
| European model (ECMWF) | 49° | 41° | 8% |
| German model (ICON) | 50° | 36° | 0% |
| Canadian model (GEM) | 50° | 36° | 19% |
| The average | 50° | 36° | 5% |
High 44° Low 32° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 28° | 0% |
| US model (GFS) | 45° | 31° | 0% |
| European model (ECMWF) | 43° | 37° | 0% |
| German model (ICON) | 46° | 31° | 0% |
| Canadian model (GEM) | 42° | 30° | 0% |
| The average | 44° | 32° | 0% |
High 48° Low 28° Rain 0%
Pretty close — fairly safe (highs spread 3°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 30° | 0% |
| US model (GFS) | 49° | 24° | 0% |
| European model (ECMWF) | 47° | 32° | 0% |
| German model (ICON) | 49° | 26° | 0% |
| Canadian model (GEM) | 46° | 26° | 0% |
| The average | 48° | 28° | 0% |
High 51° Low 29° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 51° | 32° | 0% |
| US model (GFS) | 53° | 33° | 0% |
| European model (ECMWF) | 51° | 33° | 0% |
| German model (ICON) | 54° | 28° | 0% |
| Canadian model (GEM) | 49° | 20° | 0% |
| The average | 51° | 29° | 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.