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Photo: Arched Falls, Gallatin River, directly under the twin buttes. Gallatin County, Montana. by William Henry Jackson (Public domain) License

Gallatin River

River

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 67°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 67°F, cool enough to cause cold-water shock on a sudden entry.
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 437 ft³/s over 110 years).
Use cautionHot — visit early

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 67°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 67°F, cool enough to cause cold-water shock on a sudden entry. USGS gauge 06052500, as of Aug 22, 2:00 PM gauge-local time
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 437 ft³/s over 110 years). USGS daily streamflow statistics, as of Aug 22, 2:00 PM gauge-local time
Water temp
67°F
20°C
Streamflow
368 ft³/s
discharge
Gage height
4.58 ft
water level

Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 22 (median 437 ft³/s over 110 years).

No official beach-advisory feed for Montana yet — follow posted signs and local guidance.

Live, provisional data from USGS gauge Gallatin River at Logan MT (9.5 mi away), as of Aug 22, 2:00 PM gauge-local time.

Weather at Gallatin River

H: 91° L: 60°
Overcast
Overcast
91°
|
Feels like 84°
Precipitation
57%
Humidity
21%
Wind
10 mph
UV Index
4
Water Conditions:
🏊Perfect for swimming
12 AM
Clear
69°
3 AM
Overcast
63°
6 AM
Overcast
63°
9 AM
Overcast
72°
12 PM
Overcast
87°
3 PM
Overcast
91°
6 PM
Patchy light drizzle
81°
9 PM
Light drizzle
75°

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Frequently asked questions

Where is Gallatin River?
Gallatin River is a river in Montana.
What is the water temperature at Gallatin River?
As of August 22, 2026, the water temperature at Gallatin River in Montana is 67°F (20°C), measured by USGS gauge 06052500, 9.5 miles away.
Can you swim at Gallatin River?
Cool water — ease in carefully: water temperature is 67°F, cool enough to cause cold-water shock on a sudden entry. Checked August 22, 2026.
How is Gallatin River rated?
Gallatin River in Montana has an average visitor rating of 4.8 out of 5, based on 14 reviews.

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Best Times to Visit

☀️
Right Now
Very warm - visit early morning or evening
🌊 Rivers & Streams Tips:
  • Check water levels and current conditions before visiting
  • Wear life jackets when on the water
  • Be aware of rapids and potential hazards
  • Respect private property along riverbanks
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Montana

Montana None

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