Weiser Warm Springs produces water at just 72°F with a trickle discharge of 0.04 cubic feet per second, making it a low-flow, low-temperature thermal seep. Roadside access puts it only 57.5 meters from the nearest road at 2,146 feet elevation in Washington County. The slightly acidic pH of 6.6 is unusual among Idaho thermal features.
The spring sits in the dry foothills of far western Idaho near the Oregon border, where annual rainfall averages under 12 inches and snowfall barely reaches 20 inches. Sagebrush and bunchgrass dominate the surrounding semi-arid terrain at this low elevation. The Snake River corridor lies nearby, and the landscape opens into broad valleys with scattered irrigated farmland. The town of Weiser sits close by along the Weiser River confluence with the Snake.
History of Weiser Warm Springs
The spring shares its name with the nearby town of Weiser, which was established as a railroad stop in the 1880s. Limited historical documentation exists for this specific thermal feature, and it has seen no commercial development. The high sulfate content (180 mg/L) and sodium levels (130 mg/L) suggest deeper geothermal circulation than the mild surface temperature implies.
Mann Creek Reservoir, about 15.8 kilometers away, has a reservable campground and offers fishing and boating. The spring itself is minor and not suited for soaking due to its low temperature and negligible flow. The area is accessible year-round given its low elevation and light snowfall. Summer temperatures can exceed 100°F, so bring sun protection and plenty of water.
Is Weiser Warm Springs worth visiting?
Best for
- Easy day trips
- Overnight camping trips
Weiser Warm Springs is well suited for easy day trips and overnight camping trips.
Annual Precip: 11.8 in
Annual Snow: 19.8 in
January
Air 28°F · Water 72°F · +44° contrast
December
Air 30°F · Water 72°F · +42° contrast
February
Air 35°F · Water 72°F · +37° contrast
January offers 54°F more contrast than July
Recent Temperature
58.1°F
(14.5°C)
Measured Aug 08, 1973
Discharge
0.04 ft³/s
Measured Aug 08, 1973
The water at Weiser Warm Springs is slightly acidic (pH 6.6).
pH influences mineral absorption through skin
May support bone density and joint health
Known for muscle relaxation and stress relief
Supports circulation and skin hydration
Traditionally used for skin conditions and inflammation
Natural antiseptic with skin health benefits
Overview
Mann Creek Campground is located near the Mann Creek Reservoir in the foothills of the West Central Mountains in western Idaho near the Payette National Forest. The reservoir is a popular boating and fishing destination.
Once on-site, you may be able to pay for your campsite(s) by scanning a QR code using the Recreation.gov mobile app, and the Scan and Pay feature. If this option is available, you will need to first download the free Recreation.gov mobile app https://www.recreation....
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Mann Creek Campground
Trash bag
Pack out what you pack in
USGS Quad: OLDS FERRY SE 7.5 · NOAA: 2.0 · AMS Map: BAKER
What is the water temperature at Weiser Warm Springs?
Weiser Warm Springs has a water temperature of 72°F (22°C). This is a warm thermal spring.
Where is Weiser Warm Springs located?
Weiser Warm Springs is located in Washington County, Idaho at 2,146 feet elevation, near Weiser. Coordinates: 44.3060°N, 117.0420°W.
How do I get to Weiser Warm Springs?
Weiser Warm Springs has Roadside road access (189 ft from the road).
Can I camp near Weiser Warm Springs?
Yes, Mann Creek Campground is located nearby (9.8 miles away).
What minerals are in the water at Weiser Warm Springs?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 6.6 (slightly acidic).
Is it safe to soak at Weiser Warm Springs?
Weiser Warm Springs is generally safe for soaking at its recorded temperature. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Weiser Warm Springs crowded?
Weiser Warm Springs is accessible from a paved road, making it easy to reach. Weekends and holidays may be busier — consider visiting on a weekday for a quieter experience.
What should I bring to Weiser Warm Springs?
Essentials for Weiser Warm Springs: swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.