Chinook, MT — every free forecast we can get, averaged to be a little more right. County seat of Blaine 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 56° Low 35° Rain 0%
Pretty close — fairly safe (highs spread 4°, rain spread 0 points, 4 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | — | 33° | 0% |
| US model (GFS) | 58° | 35° | 0% |
| European model (ECMWF) | 57° | 41° | 0% |
| German model (ICON) | 54° | 33° | 0% |
| Canadian model (GEM) | 56° | 31° | 0% |
| The average | 56° | 35° | 0% |
High 55° Low 35° Rain 0%
They disagree — a coin flip (highs spread 6°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 58° | 33° | 0% |
| US model (GFS) | 58° | 35° | 0% |
| European model (ECMWF) | 55° | 37° | 0% |
| German model (ICON) | 54° | 35° | 0% |
| Canadian model (GEM) | 52° | 32° | 0% |
| The average | 55° | 35° | 0% |
High 55° Low 35° Rain 0%
They disagree — a coin flip (highs spread 8°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 57° | 34° | 0% |
| US model (GFS) | 61° | 36° | 0% |
| European model (ECMWF) | 53° | 36° | 0% |
| German model (ICON) | 53° | 37° | 0% |
| Canadian model (GEM) | 53° | 31° | 0% |
| The average | 55° | 35° | 0% |
High 58° Low 36° Rain 0%
Pretty close — fairly safe (highs spread 5°, rain spread 0 points, 5 sources)
| Source | High | Low | Rain |
|---|---|---|---|
| National Weather Service | 58° | 34° | 0% |
| US model (GFS) | 59° | 46° | 0% |
| European model (ECMWF) | 60° | 40° | 0% |
| German model (ICON) | 59° | 34° | 0% |
| Canadian model (GEM) | 55° | 27° | 0% |
| The average | 58° | 36° | 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.