Marshall, IL — every free forecast we can get, averaged to be a little more right. County seat of Clark County.
Updated Friday, November 13, 2026. Recorded fresh this morning from five free sources, and graded later against what the weather actually did.
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High 49° Low 35° Rain 40%
They disagree — a coin flip (highs spread 2°, rain spread 53 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 33° | 12% |
| US model (GFS) | 48° | 36° | 14% |
| European model (ECMWF) | 48° | 37° | 65% |
| German model (ICON) | 48° | 36° | 50% |
| Canadian model (GEM) | 50° | 36° | 57% |
| The average | 49° | 35° | 40% |
High 42° Low 31° Rain 11%
Pretty close — fairly safe (highs spread 5°, rain spread 13 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 45° | 27° | 14% |
| US model (GFS) | 41° | 32° | 6% |
| European model (ECMWF) | 43° | 34° | 8% |
| German model (ICON) | 42° | 32° | 8% |
| Canadian model (GEM) | 40° | 31° | 19% |
| The average | 42° | 31° | 11% |
High 48° Low 28° Rain 0%
They agree — trust it (highs spread 1°, rain spread 1 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 48° | 25° | 0% |
| US model (GFS) | 48° | 30° | 1% |
| European model (ECMWF) | 49° | 30° | 0% |
| German model (ICON) | 48° | 29° | 0% |
| Canadian model (GEM) | 48° | 25° | 0% |
| The average | 48° | 28° | 0% |
High 50° Low 28° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 50° | 27° | 0% |
| US model (GFS) | 51° | 33° | 0% |
| European model (ECMWF) | 49° | 29° | 0% |
| German model (ICON) | 51° | 29° | 0% |
| Canadian model (GEM) | 50° | 20° | 0% |
| The average | 50° | 28° | 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.