Frost/Freeze in Eastern Lemhi County, Idaho

Frost/Freeze April 25, 2026 · Eastern Lemhi County, Idaho

What the National Weather Service wrote

Localized hard freezing conditions impacted areas north and southeast of Salmon. A weather station southeast of Salmon at an elevation of 4,058 feet recorded a low temperature of 25 degrees Fahrenheit, remaining at that temperature for over two hours on the 25th. Temperature in Salmon dropped into the upper 20s to near 30 degrees Fahrenheit on the mornings of the 25th and 26th.

The wider storm

An unseasonably cold airmass, originating from central Canada, brought record and near-record cold temperatures to the region. A deep and cold upper low pinched off and became centered over southern Saskatchewan and Montana during the period.

Source: NOAA Storm Events Database, event 1323022. Narratives are written by the National Weather Service forecast office that issued the report.

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