A chronicle of American weather and climate · Saturday, 31 October 2026
Across Colorado, Idaho, Michigan, Montana and 4 more, the highest readings in each county's series since 1951. The warmest was Custer, Montana, at 112.9°F.
Across Colorado, Idaho, Michigan, Montana and 4 more, the highest readings in each county's series since 1951. The warmest was Prairie, Montana, at 112.9°F.
A day-2 forecast of 13.0°F for September 18 at 06Z; the station reported 64.0°F. It is the largest temperature residual in the ledger over the last 30 days.
A day-4 forecast of 35.0°F for October 9 at 18Z; the station reported 77.0°F. It is the largest temperature residual in the ledger over the last 30 days.
84°F in the 20261006T12:00Z run, 67°F in the 20261008T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 16°F.
Across Colorado, Idaho, Michigan, Montana and 4 more, the highest readings in each county's series since 1951. The warmest was Custer, Montana, at 112.9°F.
MP 1467 · The Record · The Midwest, the Northern Rockies and the Southwest
A day-3 forecast of 37.0°F for October 9 at 00Z; the station reported 69.8°F. It is the largest temperature residual in the ledger over the last 30 days.
MP 1339 · The Ledger · MVH
A day-3 forecast of 38.9°F for October 8 at 18Z; the station reported 71.6°F. It is the largest temperature residual in the ledger over the last 30 days.
MP 1332 · The Ledger · MVH
A day-6 forecast of 58.2°F for September 14 at 00Z; the station reported 87.1°F. It is the largest temperature residual in the ledger over the last 30 days.
MP 1255 · The Ledger · SHR
A day-8 forecast of 92.2°F for September 1 at 00Z; the station reported 62.6°F. It is the largest temperature residual in the ledger over the last 30 days.
MP 1030 · The Ledger · HVE
92°F in the 20260925T12:00Z run, 74°F in the 20260927T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 15°F.
MP 1227 · Revisions · Dallas
Every forecast the network publishes for a station with an hourly report is compared against it once the valid time passes. The residuals are kept even though the grids are not.
Every dateline above is a bureau. The colour on it is that site's own accent in the network's Interstate sign system — 45 sites, each with a colour, and this one with none.