Olney, IL — every free forecast we can get, averaged to be a little more right. County seat of Richland 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 53° Low 36° Rain 30%
They disagree — a coin flip (highs spread 2°, rain spread 75 points, 3 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 34° | 9% |
| US model (GFS) | 53° | 36° | 16% |
| European model (ECMWF) | 52° | 38° | 84% |
| Canadian model (GEM) | 54° | 36° | 10% |
| The average | 53° | 36° | 30% |
High 43° Low 32° Rain 4%
Pretty close — fairly safe (highs spread 4°, rain spread 8 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 46° | 28° | 8% |
| US model (GFS) | 42° | 31° | 2% |
| European model (ECMWF) | 43° | 34° | 8% |
| Canadian model (GEM) | 42° | 33° | 0% |
| The average | 43° | 32° | 4% |
High 49° Low 27° Rain 0%
They agree — trust it (highs spread 1°, rain spread 1 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 49° | 27° | 0% |
| US model (GFS) | 49° | 25° | 1% |
| European model (ECMWF) | 50° | 31° | 0% |
| Canadian model (GEM) | 49° | 26° | 0% |
| The average | 49° | 27° | 0% |
High 51° Low 28° Rain 0%
They agree — trust it (highs spread 2°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 51° | 28° | 0% |
| US model (GFS) | 52° | 34° | 0% |
| European model (ECMWF) | 50° | 30° | 0% |
| Canadian model (GEM) | 51° | 20° | 0% |
| The average | 51° | 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.