2026-04-20T20:00:00-06:00
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Monday. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY...Fire Weather Zones 280 and 289. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater. * WIND: West 15 to 25 mph with gusts up to 30 to 35 mph. * HUMIDITY: As low as 10 to 15 percent.
Summary
The ideal streamflow range for the river is between 500 and 1,500 cubic feet per second (cfs). The river is rated as a Class III-IV, meaning it has moderate to difficult rapids with moderate to high waves and obstacles that require precise maneuvering.
The Sweetwater River has a segment mileage of approximately 80 miles, with the upper portion being more challenging and the lower portion being more suitable for beginners. Some of the notable rapids and obstacles on the river include the "Boulder Drop," "Mudslide," and "Box Canyon."
There are specific regulations to the area that kayakers and rafters should be aware of. The use of personal flotation devices (PFDs) is mandatory for all participants. Additionally, camping is only allowed in designated areas, and visitors are expected to pack out all trash and waste.
Overall, the Sweetwater River offers a thrilling whitewater experience for experienced kayakers and rafters. It is important to check the streamflow before embarking on a trip and to follow all regulations to ensure a safe and enjoyable experience.
Regional Streamflow Levels
15-Day Long Term Forecast
River Run Details
| Last Updated | 2025-06-28 |
| River Levels | 610 cfs (4.56 ft) |
| Percent of Normal | 46% |
| Status | |
| Class Level | iii-iv |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 06638090 |
Sweetwater River
Mormon Creek
Granite Creek
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