Hot Springs Finder Guide

Developed hot spring pool · Idaho

Weir Hot Spring Lower Pool

Idaho County, Idaho · 44 miles west of Hamilton, MT

Last updated

Directions (Google Maps) Apple Maps Map
Type
Developed Developed hot spring pool
Water temperature
Not recorded
Cost
Not recorded
Hours or season
Not recorded
Clothing
Not recorded
Nearest town
Hamilton, MT (44 mi / 71 km)
Coordinates
Pools or sources
2

About Weir Hot Spring Lower Pool

Weir Hot Spring Lower Pool is a developed hot spring pool in Idaho County, Idaho, about 44 miles west of Hamilton, MT. The nearest large city is Missoula, MT, roughly 57 miles away as the crow flies.

We do not have a trustworthy temperature reading for this spring. Water temperature at hot springs can change with the seasons, so always test before you soak.

This is a developed site with built pools, tubs or a bathhouse, so there is usually an entry fee, set opening hours and basic facilities.

The site has 2 mapped pools or sources within about 500 meters of each other, including Weir Hot Spring Upper Pool.

Map and directions

Red marks Weir Hot Spring Lower Pool. Other colored dots are nearby springs in this directory. Coordinates: 46.46286, -115.03582.

Location of Weir Hot Spring Lower Pool in Idaho

Getting there

  • Nearest town: Hamilton, MT. The spring is about 44 miles (71 km) west of town in a straight line.
  • Nearest large city: Missoula, MT, about 57 miles (92 km) in a straight line.
  • Planning from a city? See hot springs near Missoula, MT.
  • Use the directions buttons above for a driving route. Final roads to many springs are unpaved, seasonal or closed in winter, so check road conditions before you go.

Weather forecast

Live forecast for this exact spot from the US National Weather Service.

Hot springs near Weir Hot Spring Lower Pool

Before you go

  • Check the operator, land manager or park website for current hours, fees and closures. Details in any directory can go out of date.
  • Keep your head above water. Warm fresh water can carry Naegleria fowleri, a rare but deadly amoeba that enters through the nose.
  • Drink water, limit soaks to 10 to 20 minutes at a time in very hot water, and skip alcohol.
  • Read our hot spring etiquette guide and safety guide.

Frequently asked questions

Where is Weir Hot Spring Lower Pool?

Weir Hot Spring Lower Pool is in Idaho County, Idaho, about 44 miles west of Hamilton, MT. The GPS coordinates are 46.4629, -115.0358.

What hot springs are near Weir Hot Spring Lower Pool?

The closest listed spring is Colgate Warm Springs, about 4.6 miles east. Jerry Johnson Hot Springs Big Pool is about 7.7 miles away.

What should I bring to a hot spring?

Water to drink, a towel, sandals with grip, a bag to pack out trash, and warm layers for after your soak. At primitive springs bring a headlamp and tell someone where you are going.

Sources and corrections

This listing combines OpenStreetMap. Data last refreshed August 2026. Source 1 Source 2

Visited recently? Send a correction, such as a temperature reading, fee, closure or photo. If you look after this spring and want it removed, see removal requests.