Station Name: Sun River at Simms MT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,550 feet

Nearest Address:
99 Simms Fairfield Rd
Simms, MT 59477
Cascade County

GPS Coordinates: 47.50162778, -111.9319139

Nearby Water Temperatures

Fire Weather Watch issued March 24 at 3:14AM MDT until March 25 at 9:00PM MDT by NWS Great Falls MT

Effective: Tue March 24, 2026, 3:14 AM
Expires: Tue March 24, 2026, 6:00 PM

* AFFECTED AREA...Helena and Townsend Ranger Districts of the Helena National Forest. * WINDS...West 30 to 40 mph, with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 18 percent. * IMPACTS... New or existing fires/starts could be difficult to contain.

A Fire Weather Watch means that critical fire weather conditions are possible. A combination of gusty winds, low relative humidity, and warm temperatures will create high fire growth potential. Please advise the appropriate officials or fire crews in these areas of this Fire Weather Watch.

Red Flag Warning issued March 24 at 12:28PM MDT until March 25 at 7:00PM MDT by NWS Great Falls MT

Effective: Tue March 24, 2026, 12:28 PM
Expires: Wed March 25, 2026, 3:30 AM

The National Weather Service in Great Falls has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from noon to 7 PM MDT Wednesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Helena and Townsend Ranger Districts of the Helena National Forest. * WINDS...West 25 to 35 mph with gusts up to 55 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS... New or existing fires/starts could be difficult to contain.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning.

High Wind Warning issued March 24 at 3:08AM MDT until March 25 at 7:00PM MDT by NWS Great Falls MT

Effective: Tue March 24, 2026, 3:08 AM
Expires: Tue March 24, 2026, 6:00 PM

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...The Interstate 90 Corridor between Bozeman and Whitehall, The Madison and Beaverhead River Valleys, Big Belt, Bridger and Castle Mountains, Ruby Mountains and Southern Beaverhead Mountains, and Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles.

Remember, a High Wind Warning means that there is at least an 80% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the warning period.