Denver's forecast for Saturday has moved 9°F colder
57°F in the 20261110T06:00Z run, 47°F in the 20261112T00:00Z — the 2nd-largest revision of the 4 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 11°F.
RevisionsThursday, November 12, 2026Denver, Colorado
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Milepost 1670
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, November 14 at 18Z in Denver, that trail runs from 56.6°F in the 20261110T06:00Z cycle to 47.4°F in the 20261112T00:00Z — a move of -9.2°F across 8 runs.
The change is about half the run's 10th-to-90th percentile spread, so the earlier forecast is still inside the current range of outcomes.
Model NBM-QMD, via api.weather.city /v1/history. Percentiles are the same run's own.
The numbers in this piece, with what they are measured against
| forecast revision for Saturday at 18Z api.weather.city /v1/history (nbm-qmd) |
-9.2 °F | normal 0.0 °F · 2 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
11.1 °F | normal 9.2 °F current run |
- Milepost
- 1670 · laid 2026-11-12T10:25:31Z
- Model
- nbm-qmd · cycle 20261112T00:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Stores
- https://api.weather.city/v1/history
- Tagged
- I-500 Daily Weather · Denver, Colorado (39.739, -104.99) · by rule, at build
- Digest
- 9e018370ead281123742302611cc0c9d16cf1c5ce4673c5f5c8917bf256130f7