Riverhead, NY — every free forecast we can get, averaged to be a little more right. County seat of Suffolk 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 58° Low 47° Rain 94%
They agree — trust it (highs spread 1°, rain spread 10 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 44° | 99% |
| US model (GFS) | 58° | 45° | 92% |
| European model (ECMWF) | 58° | 51° | 100% |
| German model (ICON) | 58° | 48° | 90% |
| Canadian model (GEM) | 58° | 48° | 90% |
| The average | 58° | 47° | 94% |
High 49° Low 39° Rain 89%
Pretty close — fairly safe (highs spread 4°, rain spread 21 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 50° | 34° | 96% |
| US model (GFS) | 48° | 40° | 79% |
| European model (ECMWF) | 51° | 42° | 100% |
| German model (ICON) | 49° | 40° | 88% |
| Canadian model (GEM) | 50° | 40° | 83% |
| The average | 49° | 39° | 89% |
High 46° Low 37° Rain 18%
Pretty close — fairly safe (highs spread 4°, rain spread 30 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 34° | 5% |
| US model (GFS) | 45° | 38° | 8% |
| European model (ECMWF) | 47° | 40° | 24% |
| German model (ICON) | 46° | 38° | 35% |
| Canadian model (GEM) | 45° | 36° | 20% |
| The average | 46° | 37° | 18% |
High 48° Low 40° Rain 1%
Pretty close — fairly safe (highs spread 4°, rain spread 6 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 51° | 36° | 0% |
| US model (GFS) | 47° | 41° | 1% |
| European model (ECMWF) | 48° | 42° | 6% |
| German model (ICON) | 49° | 40° | 0% |
| Canadian model (GEM) | 47° | 42° | 0% |
| The average | 48° | 40° | 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.