Weather Warnings for Montana

Issued by the National Weather Service

Current watches, warnings, and advisories for Montana
Alerts Updated: February 18, 2026, 1:17 am  UTC


Winter Storm Warning issued February 17 at 6:17PM MST until February 17 at 11:00PM MST by NWS Great Falls MT

Summary: * WHAT...Snow and blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 60 mph. * WHERE...Northern Blaine County. * WHEN...Until 11 PM MST this evening. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility.
Severity:  Severe    Effective:  February 17, 2026, 6:17 pm      Expires:  February 17, 2026, 11:00 pm
Area:  Northern Blaine County


Cold Weather Advisory issued February 17 at 6:15PM MST until February 18 at 12:00PM MST by NWS Great Falls MT

Summary: * WHAT...Very cold wind chills as low as 32 below expected. * WHERE...Bears Paw Mountains and Southern Blaine and Hill County. * WHEN...Until noon MST Wednesday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes.
Severity:  Moderate    Effective:  February 17, 2026, 6:15 pm      Expires:  February 18, 2026, 9:15 am
Area:  Hill County; Bears Paw Mountains and Southern Blaine


Extreme Cold Warning issued February 17 at 6:15PM MST until February 18 at 12:00PM MST by NWS Great Falls MT

Summary: * WHAT...Dangerously cold wind chills as low as 40 below. * WHERE...The Montana Hi-Line adjacent to the Rocky Mountain Front, and Eastern Toole and Liberty Counties. * WHEN...Until noon MST Wednesday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.
Severity:  Severe    Effective:  February 17, 2026, 6:15 pm      Expires:  February 18, 2026, 9:15 am
Area:  East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty


Cold Weather Advisory issued February 17 at 6:15PM MST until February 18 at 12:00PM MST by NWS Great Falls MT

Summary: * WHAT...Very cold wind chills as low as 30 below expected. * WHERE...Southern Rocky Mountain Front and adjacent foothills and plains, Eastern Pondera and Eastern Teton Counties, Northern Blaine County, Western and Central Chouteau County, Cascade County below 5000ft, Upper Blackfoot and MacDonald Pass, and Gates of the Mountains. * WHEN...Until noon MST Wednesday. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes.
Severity:  Moderate    Effective:  February 17, 2026, 6:15 pm      Expires:  February 18, 2026, 9:15 am
Area:  Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Cascade County below 5000ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains


High Wind Warning issued February 17 at 6:03PM MST until February 17 at 8:00PM MST by NWS Billings MT

Summary: * WHAT...West to northwest winds gusting 50 to 60 mph. * WHERE...Portions of south central and southeast Montana. * WHEN...Until 8 PM MST this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles.
Severity:  Severe    Effective:  February 17, 2026, 6:03 pm      Expires:  February 17, 2026, 8:00 pm
Area:  Treasure; Northern Rosebud; Custer; Powder River; Carter; Southern Rosebud


High Wind Warning issued February 17 at 6:03PM MST until February 18 at 2:00AM MST by NWS Billings MT

Summary: * WHAT...West winds gusting up to 60 mph, along with a period of wet snowfall. * WHERE...Fallon. * WHEN...Until 2 AM MST Wednesday. * IMPACTS...Travel will be difficult, especially for high profile vehicles. The combination of strong winds and light snow may create blowing and drifting snow, reducing visibility at times. * ADDITIONAL DETAILS...Expect visibility to drop below a mile at times. Snow will end by late evening.
Severity:  Severe    Effective:  February 17, 2026, 6:03 pm      Expires:  February 18, 2026, 2:00 am
Area:  Fallon


Winter Weather Advisory issued February 17 at 1:49PM MST until February 18 at 11:00PM MST by NWS Missoula MT

Summary: * WHAT...Snow expected. There is a likelihood of minor to moderate winter weather impacts. Total snow accumulations between 1 and 4 inches. * WHERE...Highway 200 Trout Creek to Heron, Evaro Hill, Highway 200 Thompson Falls to Plains, and I-90 Lookout Pass to Haugan. * WHEN...From 1 AM to 11 PM MST Wednesday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. MODERATE winter weather impacts, expect disruptions to normal activities. Use caution while driving. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Snow showers on Wednesday could reduce visibility to less than one-mile at times.
Severity:  Moderate    Effective:  February 17, 2026, 1:49 pm      Expires:  February 18, 2026, 2:00 pm
Area:  Lower Clark Fork Region


Winter Weather Advisory issued February 17 at 1:49PM MST until February 18 at 8:00PM MST by NWS Missoula MT

Summary: * WHAT...Snow expected. There is a likelihood of minor winter weather impacts. Total snow accumulations between 1 and 3 inches. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...From midnight tonight to 8 PM MST Wednesday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes.
Severity:  Moderate    Effective:  February 17, 2026, 1:49 pm      Expires:  February 18, 2026, 2:00 pm
Area:  Bitterroot/Sapphire Mountains


Winter Weather Advisory issued February 17 at 1:49PM MST until February 18 at 5:00PM MST by NWS Missoula MT

Summary: * WHAT...Snow expected. There is a likelihood of minor winter weather impacts. Total snow accumulations up to two inches. Winds gusting as high as 35 mph from Badrock Canyon to Kalispell. * WHERE...Mission Valley, Flathead Lake, Polson, and Flathead Valley. * WHEN...From 2 AM to 5 PM MST Wednesday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Wind chill temperatures will fall into the single digits by Wednesday morning in the Flathead Valley. If you have to go outside, wear several layers of light-weight, warm clothing and mittens.
Severity:  Moderate    Effective:  February 17, 2026, 1:49 pm      Expires:  February 18, 2026, 2:00 pm
Area:  Flathead/Mission Valleys


Winter Weather Advisory issued February 17 at 1:49PM MST until February 18 at 5:00PM MST by NWS Missoula MT

Summary: * WHAT...Snow expected. There is a likelihood of minor winter weather impacts. Total snow accumulations of half-inch to 2 inches, except locally higher near Bull Lake. * WHERE...Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Highway 2 Kalispell to Libby, and Highway 37 Eureka to Libby. * WHEN...From 3 AM to 5 PM MST Wednesday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes.
Severity:  Moderate    Effective:  February 17, 2026, 1:49 pm      Expires:  February 18, 2026, 2:00 pm
Area:  Kootenai/Cabinet Region


Winter Weather Advisory issued February 17 at 1:49PM MST until February 19 at 8:00AM MST by NWS Missoula MT

Summary: * WHAT...Snow and cold temperatures. There is a likelihood of ongoing minor winter weather impacts. Additional snow accumulations between 1 and 3 inches. * WHERE...Bad Rock Canyon, Glacier National Park, Marias Pass, Essex, Polebridge, and Highway 83 Bigfork to Swan Lake. * WHEN...Until 8 AM MST Thursday. * IMPACTS...Winter traveling conditions. For MINOR winter weather impacts, expect a few inconveniences to normal activities. MODERATE winter weather impacts, expect disruptions to normal activities.Use caution while driving. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes, especially over higher passes. * ADDITIONAL DETAILS...Northeast winds between 15 and 25 mph with gusts to 35 mph starting Tuesday night will generate bitterly cold wind chill temperatures as cold as 30 below zero. Any exposed skin could become frostbitten within 30 minutes in these conditions. Newborn livestock may be stressed. While northeast winds will lessen somewhat Wednesday night, wind chill temperatures near 20 below zero are possible.
Severity:  Moderate    Effective:  February 17, 2026, 1:49 pm      Expires:  February 18, 2026, 2:00 pm
Area:  West Glacier Region


Blizzard Warning issued February 17 at 11:54AM MST until February 18 at 5:00PM MST by NWS Glasgow MT

Summary: * WHAT...Blizzard conditions expected. Total snow accumulations between 1 and 4 inches. Winds gusting as high as 60 mph. * WHERE...A portion of northeast Montana. * WHEN...Until 5 PM MST Wednesday. * IMPACTS...Visibilities will drop below 1/4 mile at times due to falling and blowing snow. Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...The greatest impacts from falling and blowing snow are expected overnight.
Severity:  Extreme    Effective:  February 17, 2026, 11:54 am      Expires:  February 18, 2026, 6:00 am
Area:  Central and Southern Valley; Daniels; Sheridan; Western Roosevelt; McCone; Northern Phillips; Northern Valley; Eastern Roosevelt


Winter Weather Advisory issued February 17 at 11:54AM MST until February 18 at 6:00AM MST by NWS Glasgow MT

Summary: * WHAT...Snow and blowing snow expected. Total snow accumulations up to two inches. Winds gusting as high as 60 mph. * WHERE...Dawson, Prairie, and Richland Counties. * WHEN...From 4 PM this afternoon to 6 AM MST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...The highest snowfall amounts will be in higher elevations of the Big Sheeps.
Severity:  Moderate    Effective:  February 17, 2026, 11:54 am      Expires:  February 18, 2026, 6:00 am
Area:  Richland; Dawson; Prairie


Winter Weather Advisory issued February 17 at 11:54AM MST until February 18 at 6:00AM MST by NWS Glasgow MT

Summary: * WHAT...Snow and blowing snow expected. Total snow accumulations up to two inches. Winds gusting as high as 60 mph. * WHERE...Central and Southern Phillips, and Garfield Counties. * WHEN...From 4 PM this afternoon to 6 AM MST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...The highest snowfall amounts will be near Fort Peck Lake and the US-2 corridor.
Severity:  Moderate    Effective:  February 17, 2026, 11:54 am      Expires:  February 18, 2026, 6:00 am
Area:  Central and Southeast Phillips; Garfield; Southwest Phillips


Cold Weather Advisory issued February 17 at 11:42AM MST until February 18 at 12:00PM MST by NWS Glasgow MT

Summary: * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 60 mph. For the Cold Weather Advisory, very cold wind chills as low as 30 below expected. * WHERE...Central and Southern Phillips Counties. * WHEN...For the High Wind Warning, until 5 AM MST Wednesday. For the Cold Weather Advisory, from 2 AM to noon MST Wednesday. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel could be difficult, especially for high profile vehicles. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.
Severity:  Moderate    Effective:  February 17, 2026, 11:42 am      Expires:  February 18, 2026, 5:00 am
Area:  Central and Southeast Phillips; Southwest Phillips


Cold Weather Advisory issued February 17 at 11:42AM MST until February 18 at 12:00PM MST by NWS Glasgow MT

Summary: * WHAT...Very cold wind chills as low as 30 below expected. * WHERE...Northern Phillips and Northern Valley Counties. * WHEN...From 2 AM to noon MST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.
Severity:  Moderate    Effective:  February 17, 2026, 11:42 am      Expires:  February 18, 2026, 5:00 am
Area:  Northern Phillips; Northern Valley


High Wind Warning issued February 17 at 11:42AM MST until February 18 at 5:00AM MST by NWS Glasgow MT

Summary: * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Dawson, Garfield, McCone, Petroleum, and Prairie Counties. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel could be difficult, especially for high profile vehicles.
Severity:  Severe    Effective:  February 17, 2026, 11:42 am      Expires:  February 18, 2026, 5:00 am
Area:  Petroleum; Garfield; McCone; Dawson; Prairie


High Wind Warning issued February 17 at 11:42AM MST until February 18 at 5:00AM MST by NWS Glasgow MT

Summary: * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 60 mph. For the Cold Weather Advisory, very cold wind chills as low as 30 below expected. * WHERE...Central and Southern Phillips Counties. * WHEN...For the High Wind Warning, until 5 AM MST Wednesday. For the Cold Weather Advisory, from 2 AM to noon MST Wednesday. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel could be difficult, especially for high profile vehicles. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.
Severity:  Severe    Effective:  February 17, 2026, 11:42 am      Expires:  February 18, 2026, 5:00 am
Area:  Central and Southeast Phillips; Southwest Phillips


Avalanche Warning issued February 17 at 6:24AM MST by NWS Missoula MT

Summary: AVWMSO The following message is transmitted at the request of Flathead Avalanche Center Hungry Horse MT. ...AVALANCHE WARNING ISSUED BY THE FLATHEAD AVALANCHE CENTER... 07:00 MST Tue Feb 17 2026 The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas: NWS Missoula MT - MTZ001 (MTZ001)...MTZ002 (MTZ002) * WHAT...Heavy snowfall rates and wind-drifted snow will create very dangerous avalanche conditions. * WHERE...Slopes above 5000 feet in the Whitefish, Swan, and Flathead Ranges, and the Lake McDonald and Marias Pass areas of Glacier National Park

* WHEN...In effect from Tue 07:00 MST to Wed 06:00 MST. * IMPACTS...Natural large to very large slab avalanches are likely. Human triggered avalanches are very likely. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Travel in avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain. Consult http://www.flatheadavalanche.org/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.
Severity:  Unknown    Effective:  February 17, 2026, 6:24 am      Expires:  February 18, 2026, 6:00 am
Area:  Kootenai/Cabinet Region; West Glacier Region