Extreme Cold/Wind Chill in Northern Blaine County, Montana

Extreme Cold/Wind Chill January 23, 2026 · Northern Blaine County, Montana

What the National Weather Service wrote

Multiple weather station reported extreme wind chill values between -35 to -40 degrees. The lowest wind chill of -40 was recorded at Mesonet station FBLM8 Fort Belknap RAWS.

The wider storm

An upper-air disturbance helped to drive an Arctic airmass from Canada into Northern MT. Winds were generally light, but north winds helped lock the cold airmass into the Hi-line on the morning of the 23rd. Extreme cold conditions developed as a result.

Source: NOAA Storm Events Database, event 1311723. Narratives are written by the National Weather Service forecast office that issued the report.

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