Timber Lake, SD — every free forecast we can get, averaged to be a little more right. County seat of Dewey 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 38° Low 28° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 23° | 0% |
| US model (GFS) | 37° | 30° | 0% |
| European model (ECMWF) | 39° | 30° | 0% |
| German model (ICON) | 38° | 28° | 0% |
| Canadian model (GEM) | 41° | 27° | 0% |
| The average | 38° | 28° | 0% |
High 42° Low 27° Rain 0%
They disagree — a coin flip (highs spread 12°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 41° | 27° | 0% |
| US model (GFS) | 34° | 30° | 0% |
| European model (ECMWF) | 44° | 28° | 0% |
| German model (ICON) | 43° | 27° | 0% |
| Canadian model (GEM) | 46° | 26° | 0% |
| The average | 42° | 27° | 0% |
High 46° Low 32° Rain 0%
Pretty close — fairly safe (highs spread 6°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 43° | 32° | 0% |
| US model (GFS) | 49° | 32° | 0% |
| European model (ECMWF) | 46° | 33° | 0% |
| German model (ICON) | 47° | 32° | 0% |
| Canadian model (GEM) | 48° | 32° | 0% |
| The average | 46° | 32° | 0% |
High 55° Low 37° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 53° | 34° | 0% |
| US model (GFS) | 55° | 40° | 0% |
| European model (ECMWF) | 57° | 38° | 0% |
| German model (ICON) | 55° | 36° | 0% |
| Canadian model (GEM) | 56° | 37° | 0% |
| The average | 55° | 37° | 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.