Fairfax, VA — every free forecast we can get, averaged to be a little more right. County seat of Fairfax city.
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 63° Low 46° Rain 34%
They disagree — a coin flip (highs spread 3°, rain spread 78 points, 3 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 42° | 5% |
| US model (GFS) | 63° | 45° | 17% |
| German model (ICON) | 62° | 48° | 83% |
| Canadian model (GEM) | 64° | 48° | 32% |
| The average | 63° | 46° | 34% |
High 48° Low 36° Rain 16%
Pretty close — fairly safe (highs spread 4°, rain spread 26 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 35° | 12% |
| US model (GFS) | 46° | 35° | 3% |
| German model (ICON) | 48° | 36° | 20% |
| Canadian model (GEM) | 48° | 38° | 29% |
| The average | 48° | 36° | 16% |
High 49° Low 34° Rain 6%
They agree — trust it (highs spread 2°, rain spread 12 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 50° | 37° | 3% |
| US model (GFS) | 49° | 32° | 2% |
| German model (ICON) | 49° | 34° | 3% |
| Canadian model (GEM) | 48° | 34° | 14% |
| The average | 49° | 34° | 6% |
High 51° Low 38° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 52° | 36° | 0% |
| US model (GFS) | 50° | 41° | 0% |
| German model (ICON) | 51° | 38° | 0% |
| Canadian model (GEM) | 50° | 38° | 0% |
| The average | 51° | 38° | 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.