Jerseyville, IL — every free forecast we can get, averaged to be a little more right. County seat of Jersey 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 48° Low 34° Rain 7%
Pretty close — fairly safe (highs spread 1°, rain spread 19 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 31° | 0% |
| US model (GFS) | 47° | 35° | 0% |
| European model (ECMWF) | 47° | 40° | 10% |
| German model (ICON) | 48° | 33° | 8% |
| Canadian model (GEM) | 48° | 32° | 19% |
| The average | 48° | 34° | 7% |
High 43° Low 29° Rain 0%
They agree — trust it (highs spread 3°, rain spread 2 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 44° | 25° | 2% |
| US model (GFS) | 44° | 30° | 0% |
| European model (ECMWF) | 42° | 35° | 0% |
| German model (ICON) | 45° | 29° | 0% |
| Canadian model (GEM) | 42° | 26° | 0% |
| The average | 43° | 29° | 0% |
High 47° Low 25° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 47° | 26° | 0% |
| US model (GFS) | 48° | 25° | 0% |
| European model (ECMWF) | 46° | 29° | 0% |
| German model (ICON) | 48° | 24° | 0% |
| Canadian model (GEM) | 44° | 20° | 0% |
| The average | 47° | 25° | 0% |
High 51° Low 27° Rain 0%
Pretty close — fairly safe (highs spread 5°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 28° | 0% |
| US model (GFS) | 53° | 32° | 0% |
| European model (ECMWF) | 50° | 30° | 0% |
| German model (ICON) | 53° | 26° | 0% |
| Canadian model (GEM) | 48° | 17° | 0% |
| The average | 51° | 27° | 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.