Lost River, Idaho — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Lost River, Butte County.
Flight conditions near Lost River — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…
Live animated radar for Lost River and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
Lost River is a quiet collection of buildings spread across a wide, sun-baked valley floor, hemmed in by the rugged, sagebrush-clad slopes of the Lemhi Range. It lies 68.7 miles west-north-west of Idaho Falls, ID (from Idaho Falls, ID: bearing 283°T), and is situated 5.1 miles north-west of Arco. The air here, especially in the long evenings, carries the dry scent of dust and wild thyme, a subtle perfume that clings to the weathered wood of fences and the corrugated iron roofs. Low, rounded hills, etched with the faint tracks of deer and pronghorn, rise in the distance, their muted greens and browns softening as they meet the vast, pale blue Idaho sky. The stillness is profound, broken only by the distant lowing of cattle or the occasional rumble of a truck heading towards more populated country. This is a landscape shaped by water, though its name suggests otherwise, with the Lost River itself meandering through the valley, its course a vital artery for the ranches that dot the surrounding terrain. For generations, the economy of Lost River has been tied to the land, to the raising of livestock and the cultivation of hardy crops that can withstand the region's stark contrasts of season. The history of this place is written not in grand monuments, but in the enduring spirit of those who have worked this earth, a lineage of resilience evident in the stoic faces of its inhabitants. There's a palpable sense of continuity here, a quiet understanding that life moves at a different pace, dictated by the sun, the seasons, and the enduring presence of the mountains.
| Location | Lost River, Butte County, Idaho |
| Coordinates | 43.689068°N, 113.371399°W |
| Timezone | Mountain Time (America/Boise) |
| Area Code | 208, 986 |
| Page generated | June 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |