Guaynabo Municipio, PR — every free forecast we can get, averaged to be a little more right. County seat of Guaynabo Municipio.
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 90° Low 75° Rain 34%
They disagree — a coin flip (highs spread 2°, rain spread 91 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 78° | 20% |
| US model (GFS) | 90° | 76° | 26% |
| European model (ECMWF) | 89° | 76° | 91% |
| German model (ICON) | 91° | 73° | 35% |
| Canadian model (GEM) | 90° | 72° | 0% |
| The average | 90° | 75° | 34% |
High 89° Low 77° Rain 19%
They disagree — a coin flip (highs spread 3°, rain spread 45 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 88° | 78° | 20% |
| US model (GFS) | 90° | 76° | 23% |
| European model (ECMWF) | 88° | 77° | 45% |
| German model (ICON) | 90° | 77° | 5% |
| Canadian model (GEM) | 88° | 76° | 0% |
| The average | 89° | 77° | 19% |
High 90° Low 78° Rain 29%
They disagree — a coin flip (highs spread 4°, rain spread 81 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 89° | 77° | 30% |
| US model (GFS) | 90° | 77° | 20% |
| European model (ECMWF) | 88° | 78° | 81% |
| German model (ICON) | 92° | 79° | 13% |
| Canadian model (GEM) | 89° | 76° | 0% |
| The average | 90° | 78° | 29% |
High 89° Low 74° Rain 1%
Pretty close — fairly safe (highs spread 5°, rain spread 3 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 87° | 76° | 1% |
| US model (GFS) | 90° | 75° | 3% |
| European model (ECMWF) | 88° | 75° | 1% |
| German model (ICON) | 92° | 72° | 0% |
| Canadian model (GEM) | 89° | 72° | 0% |
| The average | 89° | 74° | 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.