Dedham, MA — every free forecast we can get, averaged to be a little more right. County seat of Norfolk County.
Updated Friday, November 13, 2026. Recorded fresh this morning from five free sources, and graded later against what the weather actually did.
← All cities and the scoreboard
High 54° Low 41° Rain 93%
Pretty close — fairly safe (highs spread 4°, rain spread 22 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 39° | 100% |
| US model (GFS) | 53° | 41° | 78% |
| European model (ECMWF) | 53° | 42° | 99% |
| German model (ICON) | 52° | 43° | 90% |
| Canadian model (GEM) | 56° | 39° | 97% |
| The average | 54° | 41° | 93% |
High 45° Low 36° Rain 94%
Pretty close — fairly safe (highs spread 6°, rain spread 19 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 41° | 34° | 81% |
| US model (GFS) | 45° | 36° | 91% |
| European model (ECMWF) | 46° | 36° | 100% |
| German model (ICON) | 47° | 37° | 100% |
| Canadian model (GEM) | 47° | 35° | 100% |
| The average | 45° | 36° | 94% |
High 45° Low 32° Rain 8%
They agree — trust it (highs spread 3°, rain spread 12 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 45° | 32° | 17% |
| US model (GFS) | 46° | 33° | 5% |
| European model (ECMWF) | 46° | 32° | 5% |
| German model (ICON) | 46° | 34° | 5% |
| Canadian model (GEM) | 44° | 30° | 10% |
| The average | 45° | 32° | 8% |
High 47° Low 33° Rain 0%
They agree — trust it (highs spread 2°, rain spread 1 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 32° | 1% |
| US model (GFS) | 47° | 35° | 0% |
| European model (ECMWF) | 47° | 34° | 0% |
| German model (ICON) | 47° | 35° | 0% |
| Canadian model (GEM) | 47° | 32° | 0% |
| The average | 47° | 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.