439
FPUS55 KTFX 210937
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
336 AM MDT THU MAY 21 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR TODAY, TONIGHT, AND FRIDAY.
MTZ301-212200-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
336 AM MDT THU MAY 21 2026
TODAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF SNOW
EARLY IN THE MORNING. PATCHY FOG EARLY IN THE MORNING. HIGHS
46 TO 56. NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
TONIGHT
MOSTLY CLOUDY. LOWS 32 TO 38. SOUTHWEST WINDS UP TO
10 MPH.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 50 TO 62. WEST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 42. SOUTHWEST WINDS
5 TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 55 TO 67. SOUTHWEST WINDS 5 TO
20 MPH. GUSTS UP TO 35 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 48.
SUNDAY
WINDY, SUNNY. HIGHS 55 TO 67.
SUNDAY NIGHT
BREEZY. PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A 20 PERCENT CHANCE OF RAIN AFTER MIDNIGHT. LOWS
40 TO 46.
MEMORIAL DAY
BREEZY. MOSTLY SUNNY. CHANCE OF RAIN IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 53 TO
65. CHANCE OF RAIN 40 PERCENT.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS 39 TO 45.
CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 49 TO 59. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN AFTER MIDNIGHT. LOWS 37 TO 43. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 48 TO 58. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ307-212200-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS EARLY IN THE AFTERNOON.
SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON. HIGHS 43 TO
53. NORTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE
OF PRECIPITATION 20 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 28 TO 34. WEST WINDS UP TO 5 MPH. GUSTS UP TO 20 MPH
IN THE EVENING.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 49 TO 61. WEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 33 TO 39. WEST WINDS UP TO
10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 54 TO 68. SOUTHWEST WINDS UP TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 44.
SUNDAY
SUNNY. HIGHS 55 TO 69.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 44.
MEMORIAL DAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 58 TO 70.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS 39 TO 45.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 52 TO 62. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 37 TO 43. CHANCE OF PRECIPITATION 60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 49 TO 59. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ302-212200-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN EARLY IN THE
MORNING. PATCHY FOG EARLY IN THE MORNING. HIGHS IN THE UPPER 50S.
NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TONIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS UP TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. WEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE LOWER 40S. WEST WINDS 5 TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS 5 TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH MEMORIAL DAY
BREEZY. PARTLY CLOUDY.
LOWS IN THE UPPER 40S. HIGHS 68 TO 74.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
TUESDAY THROUGH WEDNESDAY
BREEZY. MOSTLY CLOUDY WITH CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE
LOWER 60S. LOWS IN THE LOWER 40S. CHANCE OF PRECIPITATION
50 PERCENT.
MTZ308-212200-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE UPPER 50S. NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS UP TO
10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
UP TO 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE LOWER 40S. WEST WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
TUESDAY
COOLER. PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 40S. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF PRECIPITATION
50 PERCENT.
MTZ303-212200-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN EARLY IN THE
MORNING. PATCHY FOG EARLY IN THE MORNING. HIGHS AROUND 60.
NORTHWEST WINDS 10 TO 20 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
UP TO 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE LOWER 40S. SOUTHWEST WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
BREEZY. PARTLY CLOUDY.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
MEMORIAL DAY
PARTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
TUESDAY
BREEZY. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF
PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
WINDY. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
RAIN. LOWS IN THE LOWER 40S.
WEDNESDAY
BREEZY. PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF PRECIPITATION
50 PERCENT.
TEMPERATURE / PRECIPITATION
CUT BANK 60 35 68 / 20 0 0
MTZ304-212200-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. A
20 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS AROUND
60. NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS 76 TO 83.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 70 TO 76. CHANCE OF
PRECIPITATION 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 66 TO 72. CHANCE OF PRECIPITATION 40 PERCENT.
MTZ305-212200-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. A
20 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS IN THE
LOWER 60S. NORTHWEST WINDS 5 TO 15 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTH WINDS UP TO 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S.
SUNDAY NIGHT AND MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE MID 80S.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 50S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE
OF RAIN. LOWS IN THE UPPER 40S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF PRECIPITATION
40 PERCENT.
TEMPERATURE / PRECIPITATION
HAVRE 62 35 72 / 20 10 0
MTZ306-212200-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. A
20 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS AROUND
60. NORTHWEST WINDS 10 TO 15 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS UP
TO 10 MPH.
FRIDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS UP TO
5 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO
15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S.
SUNDAY NIGHT AND MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE MID 80S.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE LOWER
50S.
TUESDAY
BREEZY. MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
TUESDAY NIGHT
BREEZY. MOSTLY CLOUDY. CHANCE OF RAIN IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE
LOWER 50S. CHANCE OF RAIN 50 PERCENT.
WEDNESDAY
BREEZY. PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE OF PRECIPITATION
40 PERCENT.
MTZ309-212200-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS
AROUND 60. NORTHWEST WINDS 5 TO 15 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS UP TO
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
AROUND 40. SOUTHWEST WINDS UP TO 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 40S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF PRECIPITATION
40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION
40 PERCENT.
MTZ310-212200-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS
AROUND 60. NORTHWEST WINDS 5 TO 15 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS UP TO
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY. HIGHS IN THE LOWER
80S. LOWS IN THE UPPER 40S.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 50S.
CHANCE OF RAIN 40 PERCENT.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE MID 70S. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 70S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ311-212200-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. A
20 PERCENT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS 55 TO
61. NORTHWEST WINDS 5 TO 15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHWEST WINDS
UP TO 10 MPH.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 64 TO 70. NORTHWEST WINDS
UP TO 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 72 TO 78. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
HIGHS 77 TO 83.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE LOWER 50S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS 80 TO 86.
MONDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 50S.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 75 TO 81.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 50S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 70 TO 76. CHANCE OF PRECIPITATION
50 PERCENT.
MTZ312-212200-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
336 AM MDT THU MAY 21 2026
TODAY
PARTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS EARLY IN THE AFTERNOON. HIGHS IN THE UPPER 50S. NORTHWEST
WINDS 5 TO 15 MPH. CHANCE OF PRECIPITATION 20 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS UP TO
10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 73 TO 79. SOUTHWEST WINDS UP TO
15 MPH.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 50S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF PRECIPITATION
40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION
50 PERCENT.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 59 37 69 / 10 0 0
MTZ313-212200-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING. CHANCE
OF RAIN EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN
THE LATE MORNING AND EARLY AFTERNOON, THEN SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS IN THE MID 50S.
NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE
OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. WEST WINDS UP TO
5 MPH SHIFTING TO THE NORTH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. EAST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO
10 MPH SHIFTING TO THE WEST WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS AROUND 50.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 70S. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ314-212200-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN EARLY IN THE MORNING. SLIGHT CHANCE OF RAIN
SHOWERS EARLY IN THE AFTERNOON. HIGHS 55 TO 61. NORTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS UP TO
5 MPH SHIFTING TO THE NORTH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. EAST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 73 TO 79. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS 78 TO 84.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
MEMORIAL DAY
SUNNY. HIGHS 81 TO 87.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE LOWER
50S.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 75 TO 81.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 48 TO 54. HIGHS
70 TO 76. CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
LEWISTOWN 54 33 64 / 40 10 0
MTZ315-212200-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
336 AM MDT THU MAY 21 2026
TODAY
PATCHY FOG EARLY IN THE MORNING. MOSTLY CLOUDY WITH A
20 PERCENT CHANCE OF RAIN AND SNOW EARLY IN THE MORNING, THEN
PARTLY SUNNY IN THE LATE MORNING AND AFTERNOON. HIGHS 46 TO 56.
NORTH WINDS UP TO 10 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 54 TO 64. WEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 71. SOUTHWEST WINDS UP TO
5 MPH SHIFTING TO THE WEST 5 TO 15 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS 63 TO 74.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 57 TO 65. CHANCE
OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 62. CHANCE OF
PRECIPITATION 50 PERCENT.
MTZ316-212200-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
336 AM MDT THU MAY 21 2026
TODAY
PATCHY FOG EARLY IN THE MORNING. MOSTLY CLOUDY WITH A
20 PERCENT CHANCE OF RAIN AND SNOW EARLY IN THE MORNING, THEN
PARTLY SUNNY IN THE LATE MORNING AND AFTERNOON. HIGHS 51 TO 59.
NORTH WINDS UP TO 10 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 69. SOUTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTHWEST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 68 TO 76. SOUTHWEST WINDS UP TO
15 MPH.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS 71 TO 80.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 64 TO 70. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 40S. CHANCE OF
RAIN 60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 59 TO 67. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ317-212200-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY
SUNNY. PATCHY FOG EARLY IN THE MORNING. CHANCE OF SNOW AND RAIN
IN THE MORNING. CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 43 TO 51. NORTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
TONIGHT
MOSTLY CLEAR. LOWS 29 TO 35. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 54 TO 62. WEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 43. WEST WINDS UP TO
10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 69. SOUTHWEST WINDS UP TO
15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 49.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY. HIGHS 66 TO 75.
LOWS 43 TO 51.
MONDAY NIGHT
PARTLY CLOUDY. CHANCE OF RAIN AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 45 TO 51. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 62 TO 68.
CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 42 TO 48. CHANCE OF PRECIPITATION 60 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 58 TO 64. CHANCE OF PRECIPITATION 60 PERCENT.
MTZ318-212200-
SNOWY AND JUDITH MOUNTAINS-
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW IN THE MORNING.
CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. HIGHS 44 TO 52. NORTHWEST WINDS 10 TO 15 MPH WITH
GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS UP TO
10 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 55 TO 63. NORTHWEST
WINDS UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 63 TO 71. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS 69 TO 77.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. HIGHS 72 TO 80.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 50.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 73.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
40S. HIGHS 62 TO 68. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ319-212200-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
336 AM MDT THU MAY 21 2026
TODAY
PATCHY FOG EARLY IN THE MORNING. MOSTLY CLOUDY WITH A
40 PERCENT CHANCE OF RAIN EARLY IN THE MORNING, THEN MOSTLY SUNNY
IN THE LATE MORNING AND AFTERNOON. HIGHS AROUND 60. NORTHWEST
WINDS 5 TO 10 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHEAST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN PARTLY CLOUDY WITH CHANCE OF RAIN AFTER MIDNIGHT.
LOWS IN THE MID 40S. CHANCE OF RAIN 30 PERCENT.
TUESDAY
COOLER. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 70S. CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF PRECIPITATION 40 PERCENT.
TEMPERATURE / PRECIPITATION
HELENA 60 36 68 / 30 0 0
MTZ320-212200-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY
SUNNY. PATCHY FOG EARLY IN THE MORNING. CHANCE OF SNOW SHOWERS
AND RAIN SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. HIGHS 43 TO 53. NORTH WINDS 5 TO 15 MPH. GUSTS
UP TO 35 MPH IN THE MORNING. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
MOSTLY CLEAR. LOWS 29 TO 35. NORTH WINDS UP TO 10 MPH
SHIFTING TO THE WEST AFTER MIDNIGHT. GUSTS UP TO 25 MPH.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 52 TO 62. SOUTHWEST
WINDS UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS UP TO
15 MPH. GUSTS UP TO 35 MPH IN THE AFTERNOON.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS 65 TO 75.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 68 TO 76.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 61 TO 71. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 57 TO 67.
CHANCE OF PRECIPITATION 50 PERCENT.
MTZ321-212200-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY
SUNNY. PATCHY FOG EARLY IN THE MORNING. CHANCE OF RAIN AND SNOW
IN THE MORNING. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 50S. NORTHWEST
WINDS 5 TO 15 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. NORTHWEST WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. WEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS UP TO
5 MPH SHIFTING TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE MID 70S.
MEMORIAL DAY
SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE MID 40S.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 70. CHANCE OF PRECIPITATION
40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 40S. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
60S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ322-212200-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
336 AM MDT THU MAY 21 2026
TODAY
PATCHY FOG EARLY IN THE MORNING. CLOUDY WITH CHANCE OF
SNOW AND SLIGHT CHANCE OF RAIN EARLY IN THE MORNING, THEN PARTLY
SUNNY IN THE LATE MORNING AND AFTERNOON. HIGHS 44 TO 54. NORTH
WINDS 5 TO 15 MPH. GUSTS UP TO 40 MPH DECREASING TO 30 MPH IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS 29 TO 35. NORTH WINDS UP TO 5 MPH
WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. PARTLY SUNNY. HIGHS 53 TO 63. SOUTH WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 41. NORTH WINDS UP TO
5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE SOUTHWEST AFTER
MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 71. SOUTHWEST WINDS UP TO
5 MPH SHIFTING TO THE WEST 5 TO 15 MPH IN THE AFTERNOON.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS
65 TO 75.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 42 TO 48.
MEMORIAL DAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 76.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 42 TO 48. CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
59 TO 67. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS 39 TO 45.
CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
56 TO 64. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ323-212200-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
336 AM MDT THU MAY 21 2026
TODAY
CLOUDY WITH A 50 PERCENT CHANCE OF RAIN EARLY IN THE
MORNING, THEN MOSTLY SUNNY IN THE LATE MORNING AND AFTERNOON.
HIGHS IN THE MID 50S. NORTH WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 35 MPH.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. EAST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
SUNNY. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER
70S. CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER
60S. CHANCE OF PRECIPITATION 40 PERCENT.
MTZ324-212200-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY
SUNNY. RAIN LIKELY AND SLIGHT CHANCE OF SNOW EARLY IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS LATE IN THE MORNING. SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON. NO SNOW
ACCUMULATION. HIGHS IN THE MID 50S. NORTH WINDS 5 TO 15 MPH WITH
GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION 70 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS UP TO
5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
AROUND 40. EAST WINDS UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
5 MPH INCREASING TO 5 TO 15 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER
70S. CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF PRECIPITATION 50 PERCENT.
MTZ325-212200-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
336 AM MDT THU MAY 21 2026
TODAY
CLOUDY IN THE MORNING THEN BECOMING MOSTLY SUNNY. RAIN
AND SNOW EARLY IN THE MORNING, THEN RAIN AND SNOW LIKELY LATE IN
THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
SNOW ACCUMULATION UP TO 1 INCH. HIGHS IN THE LOWER 50S. NORTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTH WINDS UP
TO 5 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH AFTER
MIDNIGHT.
FRIDAY
NOT AS COOL. PARTLY SUNNY. HIGHS IN THE MID 60S. SOUTH
WINDS UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE UPPER 30S. SOUTH WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
WINDY, SUNNY. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
BREEZY. PARTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN IN THE EVENING. LOWS IN THE UPPER 40S.
TUESDAY
WINDY. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF PRECIPITATION 50 PERCENT.
MTZ326-212200-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
336 AM MDT THU MAY 21 2026
TODAY
BECOMING PARTLY SUNNY IN THE AFTERNOON. PATCHY FOG EARLY
IN THE MORNING. RAIN AND SNOW IN THE MORNING, THEN CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. NO
SNOW ACCUMULATION. HIGHS IN THE MID 50S. NORTHWEST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHWEST WINDS
UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE UPPER 30S. EAST WINDS UP TO 5 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER
70S. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70.
CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 55 30 66 / 80 0 0
BOZEMAN MSU 52 32 64 / 90 10 0
MTZ330-212200-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
336 AM MDT THU MAY 21 2026
TODAY
BECOMING PARTLY SUNNY IN THE AFTERNOON. PATCHY FOG EARLY
IN THE MORNING. SNOW EARLY IN THE MORNING, THEN SNOW LIKELY LATE
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS AND SNOW SHOWERS
IN THE AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES. TOTAL SNOW
ACCUMULATION UP TO 5 INCHES. HIGHS 37 TO 49. NORTH WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 40 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS 23 TO 29. NORTH WINDS UP TO
10 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
FRIDAY
NOT AS COOL. PARTLY SUNNY. HIGHS 49 TO 59. SOUTHWEST
WINDS UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
31 TO 37. SOUTH WINDS UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 56 TO 68. SOUTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTHWEST WITH GUSTS TO AROUND 30 MPH IN
THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO
46. HIGHS 61 TO 73.
MEMORIAL DAY
BREEZY, SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 64 TO 74.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 47.
TUESDAY
BREEZY. MOSTLY SUNNY. SLIGHT CHANCE OF RAIN AND SNOW
IN THE MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 58 TO 68. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN
AND SNOW. LOWS 37 TO 43.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
55 TO 65. CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 50 22 60 / 70 0 0
MTZ327-212200-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
336 AM MDT THU MAY 21 2026
TODAY
PATCHY FOG EARLY IN THE MORNING. MOSTLY CLOUDY WITH
CHANCE OF SNOW EARLY IN THE MORNING, THEN PARTLY SUNNY WITH
SLIGHT CHANCE OF SNOW SHOWERS LATE IN THE MORNING. MOSTLY SUNNY
IN THE AFTERNOON. HIGHS 45 TO 55. NORTH WINDS 5 TO 15 MPH. GUSTS
UP TO 40 MPH DECREASING TO 25 MPH IN THE AFTERNOON. CHANCE OF
SNOW 50 PERCENT.
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 30. NORTHEAST WINDS UP TO 10 MPH WITH GUSTS
TO AROUND 25 MPH.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 52 TO 62. SOUTH WINDS
UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS UP TO
5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE WEST 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS 62 TO 72.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
MEMORIAL DAY
BREEZY. MOSTLY SUNNY. HIGHS 62 TO 72.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS 38 TO 44.
CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 55 TO 65. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS, SNOW
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN
CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
53 TO 63. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ328-212200-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
336 AM MDT THU MAY 21 2026
TODAY
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN AND SNOW
IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS 52 TO
58. NORTH WINDS 10 TO 20 MPH. GUSTS UP TO 40 MPH DECREASING TO
30 MPH IN THE AFTERNOON.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 60 TO 66. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE UPPER 30S. NORTH WINDS UP TO 10 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 69 TO 75. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE SOUTHWEST 5 TO 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS 73 TO 79.
SUNDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
MEMORIAL DAY
BREEZY. MOSTLY SUNNY. HIGHS 73 TO 79.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
TUESDAY
BREEZY. PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 66 TO 72. CHANCE OF PRECIPITATION
40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
64 TO 70. CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
DILLON 56 31 65 / 50 0 0
MTZ329-212200-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
336 AM MDT THU MAY 21 2026
TODAY
BREEZY. MOSTLY CLOUDY WITH CHANCE OF SNOW EARLY IN THE
MORNING, THEN MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS LATE IN
THE MORNING. MOSTLY SUNNY IN THE AFTERNOON. HIGHS 43 TO 51. NORTH
WINDS 10 TO 25 MPH WITH GUSTS TO AROUND 45 MPH. CHANCE OF SNOW
50 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH WINDS UP
TO 10 MPH. GUSTS UP TO 30 MPH DECREASING TO 20 MPH AFTER
MIDNIGHT.
FRIDAY
NOT AS COOL. PARTLY SUNNY. HIGHS 52 TO 60. SOUTHWEST
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE MID 30S. SOUTHWEST WINDS UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 69. SOUTH WINDS UP TO
5 MPH INCREASING TO SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND
35 MPH IN THE AFTERNOON.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
BREEZY. PARTLY CLOUDY.
LOWS IN THE LOWER 40S. HIGHS 65 TO 73.
MEMORIAL DAY
WINDY, SUNNY. HIGHS 65 TO 73.
MONDAY NIGHT
WINDY. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
RAIN. LOWS IN THE MID 40S.
TUESDAY
WINDY. PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 66. CHANCE OF
PRECIPITATION 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN
AND SNOW. LOWS IN THE UPPER 30S.
WEDNESDAY
BREEZY. PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
56 TO 64. CHANCE OF PRECIPITATION 50 PERCENT.
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