Weather in Hays

Red Flag Warning issued May 13 at 12:16AM MDT until May 13 at 9:00PM MDT by NWS Great Falls MT

Areas: Hill and Blaine Counties

13/05/2026, 00:16:00 → 13/05/2026, 15:30:00

* AFFECTED AREA...Hill and Blaine Counties. * TIMING...Noon today through 9 PM MST. * WINDS...South to southwesterly 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 14 percent. * TEMPERATURES...Up to 92. * THUNDERSTORMS...Scattered showers and thunderstorms capable of producing localized wind gusts between 60 and 80 mph will move in from the southwest during the mid- afternoon to early evening hours. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

High Wind Warning issued May 12 at 11:48PM MDT until May 15 at 12:00AM MDT by NWS Great Falls MT

Areas: Hill County; Northern Blaine County; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft; Snowy and Judith Mountains

12/05/2026, 23:48:00 → 13/05/2026, 17:15:00

* WHAT...Westerly winds 30 to 40 mph with gusts up to 70 mph expected. * WHERE...Snowy and Judith Mountains, Bears Paw Mountains and Southern Blaine, Fergus County below 4500ft, Hill County, Northern Blaine County, and Western and Central Chouteau County. * WHEN...From 3 AM Thursday to midnight MDT Thursday Night. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles.

Red Flag Warning issued May 13 at 12:52PM MDT until May 13 at 9:00PM MDT by NWS Great Falls MT

Areas: Hill and Blaine Counties

13/05/2026, 12:52:00 → 13/05/2026, 21:00:00

* AFFECTED AREA...Hill and Blaine Counties. * TIMING...Noon today through 9 PM MST. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Up to around. * THUNDERSTORMS...Scattered showers and thunderstorms capable of producing localized wind gusts between 60 and 80 mph will move in from the southwest during the mid- afternoon to early evening hours. These storms will bring improvement to humdity and some precipation later this evening. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

Severe Thunderstorm Watch issued May 13 at 12:51PM MDT until May 13 at 9:00PM MDT by NWS Great Falls MT

Areas: Beaverhead, MT; Blaine, MT; Broadwater, MT; Cascade, MT; Chouteau, MT; Fergus, MT; Gallatin, MT; Hill, MT; Jefferson, MT; Judith Basin, MT; Lewis and Clark, MT; Liberty, MT; Madison, MT; Meagher, MT; Pondera, MT; Teton, MT; Toole, MT

13/05/2026, 12:51:00 → 13/05/2026, 21:00:00

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 199 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN MONTANA THIS WATCH INCLUDES 17 COUNTIES IN CENTRAL MONTANA CASCADE FERGUS JUDITH BASIN MEAGHER IN NORTH CENTRAL MONTANA BLAINE CHOUTEAU HILL LIBERTY PONDERA TETON TOOLE IN SOUTHWEST MONTANA BEAVERHEAD BROADWATER GALLATIN JEFFERSON MADISON IN WEST CENTRAL MONTANA LEWIS AND CLARK THIS INCLUDES THE CITIES OF AUGUSTA, BATTLE RIDGE PASS, BELT, BIG HOLE PASS, BIG SANDY, BOULDER, BOULDER HILL, BOZEMAN APT, BOZEMAN PASS, BRADY, BYNUM, CARTER, CASCADE, CHESTER, CHIEF JOSEPH PASS, CHINOOK, CHOTEAU, CITY OF BOZEMAN, CONRAD, DEEP CREEK PASS, DILLON, DUTTON, ELK PARK PASS, ENNIS, FAIRFIELD, FLESHER PASS, FORT BENTON, GRASS RANGE, GREAT FALLS, HARLEM, HAVRE, HAYS, HEART BUTTE, HELENA, HOBSON, HOMESTAKE PASS, KINGS HILL PASS, LEWISTOWN, LEWISTOWN DIVIDE, LINCOLN, MACDONALD PASS, MARTINSDALE, MONIDA PASS, MONTANA CITY, NORRIS HILL, RAYNESFORD, RAYNOLDS PASS, ROCKY BOY, ROGERS PASS, RUDYARD, SHELBY, STANFORD, SUNBURST, TARGHEE PASS, TOSTON, TOWNSEND, TWIN BRIDGES, VIRGINIA CITY, WEST YELLOWSTONE, WHITE SULPHUR SPRINGS, WHITEHALL, WHITLASH, WINIFRED, WINSTON, WISDOM, AND WISE RIVER.

High Wind Warning issued May 13 at 12:38PM MDT until May 15 at 12:00AM MDT by NWS Great Falls MT

Areas: Hill County; Northern Blaine County; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft; Snowy and Judith Mountains

13/05/2026, 12:38:00 → 14/05/2026, 06:30:00

* WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Snowy and Judith Mountains, Bears Paw Mountains and Southern Blaine, Fergus County below 4500ft, Hill County, Northern Blaine County, and Western and Central Chouteau County. * WHEN...From 3 AM Thursday to midnight MDT Thursday Night. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.