River gauges›Montana
RIVER GAUGE · MISSOURI RIVER

Missouri River at Helena Valley Reservoir

Lewis and Clark County, Montana

Water level3819.56 ft
Flow—
Last readingSep 16, 2026, 5:15 PM UTC (last recorded)
Action3820 ft

The past week

Loading chart…

More on Missouri River

UpstreamPrickly Pear Creek near Clancy ↗
Missouri River near Culbertson Missouri River at Canyon Ferry Reservoir Missouri River at Fort Benton Missouri River near Landusky Missouri River at Toston Missouri River near Ulm Missouri River at Virgelle Missouri River near Wolf Point

Get an alert when Missouri River rises

Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.

Get it on Google Play ⊞ Windows app
A river gauge in the StormCast app

← All Montana gauges · Search another river