Marias River near Loma, Montana water temperature

Marias River near Loma, Montana · River

The current water temperature at Marias River near Loma is 20.1 °C (as of September 1, 2026, source: USGS).

A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.

20.1 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.1° · ☀️ Air 23.5° · high today 29.0°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 317 data points since July 3, 2026.

Lowest recorded value: 15.4 °C on August 31, 2026 · highest value: 25.4 °C on August 1, 2026.

Nearby waters

Marias River at Highway 223 bridge near Chester, Montana · 41.9 km away17.2 °C Sun River at Simms, Montana · 112.5 km away20.0 °C Smith River below Eagle Creek near Fort Logan, Montana · 132.6 km away18.6 °C Dearborn River near Craig, Montana · 140.8 km away20.9 °C Missouri River near Landusky, Montana · 145.7 km away20.8 °C

Frequently asked questions

Can you swim at Marias River near Loma right now?
The current water temperature is 20.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Marias River near Loma?
Currently 20.1 °C (updated continuously).

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