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

Winter Storm Warning issued March 13 at 1:26PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Fri March 13, 2026, 1:26 PM
Expires: Sat March 14, 2026, 4:30 AM

* WHAT...Heavy snow. Additional snow accumulations between 8 and 16 inches. Winds gusting as high as 40 mph. * WHERE...The foothills and plains adjacent to the Rocky Mountain Front, Eastern Pondera and Eastern Teton Counties, Cascade County below 5000ft, and Gates of the Mountains. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Friday morning and evening commutes. * ADDITIONAL DETAILS...The best window for moderate to heavy snowfall will be late tonight into Saturday.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.

Winter Storm Warning issued March 13 at 1:26PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Fri March 13, 2026, 1:26 PM
Expires: Sat March 14, 2026, 4:30 AM

* WHAT...Heavy snow. Additional snow accumulations between 10 and 20 inches, with higher amounts to 30 inches in the back country. Winds gusting as high as 45 mph. * WHERE...The Continental Divide along the Rocky Mountain Front, and Upper Blackfoot and MacDonald Pass. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. Gusty winds could bring down tree branches.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website.

Winter Storm Warning issued March 13 at 8:31PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Fri March 13, 2026, 8:31 PM
Expires: Sat March 14, 2026, 6:15 AM

* WHAT...Heavy snow. Additional snow accumulations between 7 and 14 inches. Winds gusting as high as 45 mph on Saturday. * WHERE...The Continental Divide along the Rocky Mountain Front, and Upper Blackfoot and MacDonald Pass. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Blowing snow may significantly reduce visibility, especially on Saturday. Those in the backcountry should ensure they are prepared for dangerous conditions.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.

Winter Storm Warning issued March 13 at 8:31PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Fri March 13, 2026, 8:31 PM
Expires: Sat March 14, 2026, 6:15 AM

* WHAT...Heavy snow. Additional snow accumulations between 3 and 8 inches. Winds gusting as high as 45 mph on Saturday. * WHERE...The foothills and plains adjacent to the Rocky Mountain Front, Eastern Pondera and Eastern Teton Counties, Cascade County below 5000ft, and Gates of the Mountains. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Plan for difficult winter driving conditions. Snow and blowing snow may significantly reduce visibility at times on Saturday. * ADDITIONAL DETAILS...A cold front will bring gusty northerly winds and falling temperatures during the late morning and early afternoon hours on Saturday. Any wet pavement surfaces will freeze and become icy.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.

Winter Storm Warning issued March 13 at 1:26PM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT

Effective: Fri March 13, 2026, 1:26 PM
Expires: Sat March 14, 2026, 4:30 AM

* WHAT...Periods of moderate to heavy snow. Additional snow accumulations between 1 and 2 feet. Winds gusting as high as 35 mph. * WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains. * WHEN...Until 6 PM MDT Saturday. * IMPACTS...Travel could be very difficult and tire chains may be required for some vehicles. Those in the backcountry should ensure they are prepared for dangerous conditions. * ADDITIONAL DETAILS...The best window for moderate to heavy snowfall will be late tonight into Saturday.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1 or visiting the MDT Road Report website. To see a graphical representation of the degree of stress on young livestock please visit our webpage and select Local Programs then Cold Air Advisory for Newborn Livestock.