431
FPUS55 KTFX 202137
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
336 PM MDT WED MAY 20 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR TONIGHT, THURSDAY, THURSDAY NIGHT, AND FRIDAY.
MTZ301-211000-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS EARLY IN THE EVENING. SLIGHT CHANCE OF RAIN AND SNOW LATE
IN THE NIGHT. LOWS 27 TO 33. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
THURSDAY
NOT AS COOL. PARTLY SUNNY. HIGHS 47 TO 57. NORTH
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 33 TO 39. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 51 TO 63. WEST WINDS
5 TO 15 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 43. SOUTHWEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS 54 TO 66.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 47.
SUNDAY AND SUNDAY NIGHT
BREEZY. PARTLY CLOUDY. HIGHS 56 TO 68.
LOWS 41 TO 47.
MEMORIAL DAY
BREEZY. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS 54 TO 66.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS 38 TO 44.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS 49 TO 59. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. A 50 PERCENT CHANCE
OF RAIN. LOWS 37 TO 43. HIGHS 50 TO 58.
MTZ307-211000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING PARTLY
CLOUDY. SNOW SHOWERS, RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE OF SNOW AND
SLIGHT CHANCE OF RAIN LATE IN THE EVENING. SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. SNOW LEVEL
6000 FEET. LOWS 26 TO 32. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS 44 TO 54. NORTH WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 29 TO 35. NORTHWEST WINDS UP TO 5 MPH WITH
GUSTS TO AROUND 20 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 50 TO 62. WEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 40. WEST WINDS UP TO
10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 54 TO 68.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS 38 TO
45. HIGHS 57 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 RAIN LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 51 TO 61. CHANCE OF PRECIPITATION 60 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 36 TO 42. HIGHS
50 TO 60. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ302-211000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING. SLIGHT CHANCE OF
RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 30S. NORTHWEST WINDS 5 TO
15 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTH WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. WEST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE LOWER 40S. WEST WINDS 5 TO 10 MPH.
SATURDAY THROUGH MEMORIAL DAY
BREEZY. PARTLY CLOUDY. HIGHS
68 TO 74. LOWS IN THE UPPER 40S.
MONDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN MOSTLY CLOUDY WITH CHANCE OF RAIN AFTER MIDNIGHT.
LOWS IN THE MID 40S. CHANCE OF RAIN 40 PERCENT.
TUESDAY
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
IN THE MID 60S.
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 LOWER 40S. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
BREEZY. PARTLY SUNNY WITH A 40 PERCENT CHANCE OF
RAIN. HIGHS IN THE LOWER 60S.
MTZ308-211000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING PARTLY
CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING, THEN SLIGHT CHANCE OF RAIN IN THE LATE
EVENING AND EARLY MORNING. LOWS IN THE MID 30S. NORTHWEST WINDS
5 TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTH WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS UP TO
10 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.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER
60S. LOWS IN THE MID 40S. CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
IN THE MID 60S.
MTZ303-211000-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN
THE EVENING. CHANCE OF RAIN AFTER MIDNIGHT, THEN SLIGHT CHANCE OF
RAIN LATE IN THE NIGHT. LOWS IN THE MID 30S. NORTHWEST WINDS 5 TO
15 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. EAST WINDS
AROUND 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 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 THROUGH MEMORIAL DAY
BREEZY. PARTLY CLOUDY. HIGHS IN
THE MID 70S. LOWS IN THE UPPER 40S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
TUESDAY
BREEZY. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE UPPER
60S. CHANCE OF RAIN 40 PERCENT.
TUESDAY NIGHT
BREEZY. MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 40S. CHANCE OF
PRECIPITATION 50 PERCENT.
WEDNESDAY
BREEZY. PARTLY SUNNY WITH A 40 PERCENT CHANCE OF
RAIN. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
CUT BANK 33 61 36 69 / 40 0 0 0
MTZ304-211000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS EARLY
IN THE EVENING, THEN MOSTLY CLOUDY LATE IN THE EVENING. PARTLY
CLOUDY WITH SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID
30S. NORTHWEST WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS
5 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHEAST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS 74 TO 80.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT AND MEMORIAL DAY
PARTLY CLOUDY. LOWS AROUND 50.
HIGHS 77 TO 83.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 70 TO 76.
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
40 PERCENT.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS 65 TO 71. CHANCE OF
RAIN 40 PERCENT.
MTZ305-211000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY AFTER
MIDNIGHT THEN BECOMING MOSTLY CLOUDY. LOWS IN THE MID 30S.
NORTHWEST WINDS 5 TO 15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHWEST WINDS
5 TO 15 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S.
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 AROUND 50.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
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 UPPER 40S. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF RAIN. HIGHS
IN THE LOWER 70S.
TEMPERATURE / PRECIPITATION
HAVRE 33 64 35 73 / 10 10 0 0
MTZ306-211000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST WINDS
5 TO 15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHWEST WINDS
5 TO 15 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS UP TO 10 MPH.
FRIDAY
SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 50S.
TUESDAY
BREEZY. MOSTLY SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.
TUESDAY NIGHT AND WEDNESDAY
BREEZY. MOSTLY CLOUDY. CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 70S. CHANCE OF PRECIPITATION
40 PERCENT.
MTZ309-211000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING PARTLY
CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING, THEN SLIGHT CHANCE OF RAIN LATE IN THE
EVENING. LOWS IN THE LOWER 30S. NORTHWEST WINDS 5 TO 10 MPH.
CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS
5 TO 15 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE LOWER 40S. SOUTHWEST WINDS UP TO 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S.
SATURDAY NIGHT THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE
OF PRECIPITATION 30 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 WITH A 40 PERCENT CHANCE OF RAIN. HIGHS
IN THE UPPER 60S.
MTZ310-211000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. LOWS IN THE MID 30S. WEST WINDS UP TO
10 MPH.
THURSDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE LOWER 60S. NORTHWEST WINDS 5 TO
15 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
SUNNY. HIGHS AROUND 80.
SUNDAY NIGHT AND MEMORIAL DAY
PARTLY CLOUDY. LOWS AROUND 50.
HIGHS IN THE LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS AROUND 50.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S.
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 UPPER 40S. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF RAIN. HIGHS
IN THE LOWER 70S.
MTZ311-211000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 57 TO 63. NORTHWEST WINDS 5 TO 15 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 65 TO 71. SOUTHWEST WINDS
UP TO 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 73 TO 79.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
SUNDAY
SUNNY. HIGHS 76 TO 82.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
MEMORIAL DAY
SUNNY. HIGHS 79 TO 85.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE MID
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 IN THE LOWER
50S. HIGHS 69 TO 75. CHANCE OF PRECIPITATION 40 PERCENT.
MTZ312-211000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN IN THE LATE EVENING AND OVERNIGHT. LOWS IN THE MID 30S.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. HIGHS IN THE UPPER 50S. NORTHWEST WINDS UP TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS 73 TO 79.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
LOWER 50S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
SUNNY. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 50S.
TUESDAY
MOSTLY 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
50 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.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 36 60 37 70 / 50 30 0 0
MTZ313-211000-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN IN THE LATE EVENING AND OVERNIGHT. LOWS IN THE MID 30S.
NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE
OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS 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.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS UP
TO 10 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.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 50.
TUESDAY
MOSTLY 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
50 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S.
HIGHS IN THE MID 60S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ314-211000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS EARLY IN THE
EVENING, THEN CHANCE OF RAIN LATE IN THE EVENING. LOWS IN THE
UPPER 30S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 56 TO 62. NORTHWEST WINDS 5 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST WINDS 5 TO 10 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
WARMER, SUNNY. HIGHS 65 TO 71. SOUTHWEST WINDS UP TO
10 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
WARMER, SUNNY. HIGHS 73 TO 79.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 80 TO 86. LOWS
IN THE LOWER 50S.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. 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 47 TO 53. HIGHS
68 TO 74. CHANCE OF PRECIPITATION 40 PERCENT.
TEMPERATURE / PRECIPITATION
LEWISTOWN 34 55 33 67 / 50 30 10 0
MTZ315-211000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE OF RAIN AND SNOW
LATE IN THE EVENING. SLIGHT CHANCE OF RAIN AND SNOW AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. SNOW LEVEL 6200 FEET.
LOWS IN THE LOWER 30S. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
THURSDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS AND
SNOW SHOWERS IN THE MORNING. HIGHS 46 TO 56. NORTH WINDS UP TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS UP TO 5 MPH WITH
GUSTS TO AROUND 20 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 55 TO 65. WEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 71.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS 65 TO 73.
MEMORIAL DAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 74.
MONDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 40S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 55 TO 65. LOWS
IN THE LOWER 40S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ316-211000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE OF RAIN AND
SLIGHT CHANCE OF SNOW LATE IN THE EVENING. SLIGHT CHANCE OF RAIN
AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE MID
30S. NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. HIGHS 52 TO 60. NORTH WINDS UP TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS
UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 69. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. WEST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 68 TO 76.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS 71 TO 79.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 72 TO 80.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY. SLIGHT 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 AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S.
HIGHS 60 TO 66. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ317-211000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
AND SNOW AFTER MIDNIGHT. LOWS 30 TO 36. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN CHANCE OF RAIN SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 44 TO
52. NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 28 TO 36. 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. SOUTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
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.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 49.
SUNDAY
SUNNY. HIGHS 67 TO 73.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 51.
MEMORIAL DAY
SUNNY. HIGHS 68 TO 74.
MONDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN IN THE EVENING,
THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.
LOWS 45 TO 51. CHANCE OF RAIN 30 PERCENT.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 62 TO 68. LOWS
40 TO 46. CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 57 TO 63. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ318-211000-
SNOWY AND JUDITH MOUNTAINS-
336 PM MDT WED MAY 20 2026
TONIGHT
CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS IN THE
EVENING. CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE MID
30S. NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 45 TO 53.
NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE
OF PRECIPITATION 40 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHWEST WINDS 5 TO 10 MPH
WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 55 TO 63. WEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. WEST WINDS UP TO
5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 63 TO 71.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS 69 TO 77.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 52.
MEMORIAL DAY
SUNNY. HIGHS 71 TO 79.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 50.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 74. CHANCE OF
PRECIPITATION 30 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S.
HIGHS 60 TO 66. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ319-211000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE OF RAIN LATE IN
THE EVENING. SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE
MID 30S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. HIGHS AROUND 60. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
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. NORTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE UPPER 70S.
MEMORIAL DAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE
OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
HELENA 38 60 36 69 / 90 20 0 0
MTZ320-211000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 3 INCHES. SNOW LEVEL 6600 FEET.
LOWS IN THE MID 30S. NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
30 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
PARTLY SUNNY. CHANCE OF SNOW AND SLIGHT CHANCE OF
RAIN SHOWERS IN THE MORNING, THEN CHANCE OF RAIN SHOWERS, SNOW
SHOWERS AND 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.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 29 TO 35. NORTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. GUSTS UP TO 25 MPH.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 53 TO 63. 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.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS 65 TO 75.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 75.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER
40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 61 TO 69. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER
40S. HIGHS 57 TO 65. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ321-211000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
336 PM MDT WED MAY 20 2026
TONIGHT
CLOUDY. RAIN SHOWERS LIKELY, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW IN THE EVENING, THEN CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. NO SNOW ACCUMULATION. LOWS IN THE LOWER 30S.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 50S. NORTHWEST WINDS 5 TO 15 MPH
WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. 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. SOUTHWEST 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 AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
MEMORIAL DAY
SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER
40S. HIGHS IN THE MID 60S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ322-211000-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE OF RAIN AND SNOW
IN THE LATE EVENING AND EARLY MORNING. SLIGHT CHANCE OF RAIN AND
SNOW LATE IN THE NIGHT. SNOW ACCUMULATION UP TO 1 INCH. SNOW
LEVEL 6600 FEET. LOWS 30 TO 36. NORTH WINDS 5 TO 10 MPH WITH
GUSTS TO AROUND 35 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
PARTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN SHOWERS IN THE 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 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 29 TO 35. NORTH 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 64. SOUTHWEST
WINDS UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
35 TO 41. NORTH WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 61 TO 71.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 46.
SUNDAY
SUNNY. HIGHS 65 TO 75.
SUNDAY NIGHT
PARTLY CLOUDY. 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 WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS 42 TO 48.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN 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 AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 38 TO 44. HIGHS
56 TO 64. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ323-211000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING, THEN CHANCE OF RAIN IN THE LATE EVENING AND EARLY
MORNING. SLIGHT CHANCE OF RAIN LATE IN THE NIGHT. LOWS IN THE
UPPER 30S. NORTH WINDS 5 TO 15 MPH. GUSTS UP TO 35 MPH AFTER
MIDNIGHT. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE UPPER 50S. NORTH WINDS 10 TO 20 MPH.
GUSTS UP TO 40 MPH DECREASING TO 30 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTH WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 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. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER
40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE
OF PRECIPITATION 40 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ324-211000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING, THEN RAIN LIKELY LATE IN THE EVENING. CHANCE OF
RAIN AFTER MIDNIGHT. LOWS IN THE MID 30S. NORTH WINDS 5 TO 10 MPH
WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
THURSDAY
MOSTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 50S. NORTH WINDS 5 TO 15 MPH WITH GUSTS
TO AROUND 30 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTH WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. 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.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER
40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE
OF PRECIPITATION 50 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. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF PRECIPITATION 50 PERCENT.
MTZ325-211000-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
336 PM MDT WED MAY 20 2026
TONIGHT
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. RAIN
THROUGH THE NIGHT. SNOW AFTER MIDNIGHT. NO SNOW ACCUMULATION.
LOWS IN THE MID 30S. NORTH WINDS 5 TO 10 MPH. GUSTS UP TO 30 MPH
AFTER MIDNIGHT. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
BREEZY. MOSTLY CLOUDY WITH RAIN AND SNOW LIKELY IN
THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. LITTLE OR NO
SNOW ACCUMULATION. HIGHS IN THE LOWER 50S. NORTH WINDS 10 TO
25 MPH. GUSTS UP TO 40 MPH IN THE MORNING. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
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 IN THE MID 60S. SOUTH WINDS
UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTH WINDS
UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
BREEZY, SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 40S.
TUESDAY
WINDY. MOSTLY 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 50 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. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF PRECIPITATION 50 PERCENT.
MTZ326-211000-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING, THEN RAIN LIKELY IN THE LATE EVENING AND
OVERNIGHT. SLIGHT CHANCE OF SNOW LATE IN THE NIGHT. NO SNOW
ACCUMULATION. LOWS IN THE MID 30S. NORTHWEST WINDS UP TO 10 MPH
WITH GUSTS TO AROUND 30 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
THURSDAY
PARTLY SUNNY. SNOW LIKELY AND CHANCE OF RAIN SHOWERS
IN THE MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. NO SNOW ACCUMULATION. HIGHS IN THE MID 50S. NORTHWEST
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTH
WINDS UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS
UP TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHEAST
WINDS UP TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
MEMORIAL DAY
SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER
40S.
TUESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE
OF PRECIPITATION 50 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 UPPER
60S. CHANCE OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 34 55 30 66 / 100 60 0 0
BOZEMAN MSU 35 53 32 64 / 100 80 10 0
MTZ330-211000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
336 PM MDT WED MAY 20 2026
TONIGHT
SNOW SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN THROUGH THE NIGHT. SNOW AFTER MIDNIGHT. SNOW
ACCUMULATION UP TO 3 INCHES. SNOW LEVEL 7500 FEET. LOWS 28 TO 34.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE
OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW
SHOWERS IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS
39 TO 49. NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 45 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 24 TO 30. NORTHEAST WINDS
UP TO 10 MPH. GUSTS UP TO 30 MPH DECREASING TO 20 MPH AFTER
MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 48 TO 60. SOUTH WINDS
UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 32 TO 38. SOUTHWEST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 56 TO 68.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 44.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 62 TO 72.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 45.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 64 TO 74.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 40 TO 46.
TUESDAY
BREEZY. MOSTLY SUNNY. SLIGHT CHANCE OF RAIN 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. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 36 TO 42. CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 53 TO 63. CHANCE
OF PRECIPITATION 50 PERCENT.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 28 50 22 61 / 100 50 0 0
MTZ327-211000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
336 PM MDT WED MAY 20 2026
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
SNOW AND RAIN AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH.
SNOW LEVEL 7200 FEET. LOWS IN THE LOWER 30S. NORTHWEST WINDS
10 TO 15 MPH SHIFTING TO THE NORTH AFTER MIDNIGHT. GUSTS UP TO
30 MPH. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 45 TO 55. NORTH WINDS 5 TO
15 MPH. GUSTS UP TO 45 MPH DECREASING TO 30 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. NORTH WINDS UP
TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT. GUSTS UP TO
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 SOUTHWEST AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 58 TO 70.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND
40. HIGHS 62 TO 72.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 62 TO 72.
MONDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 37 TO 43.
TUESDAY
MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN AND SNOW IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 65.
CHANCE OF PRECIPITATION 70 PERCENT.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER
30S. HIGHS 52 TO 62. CHANCE OF PRECIPITATION 50 PERCENT.
MTZ328-211000-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING, THEN RAIN LATE IN THE EVENING. RAIN AND
SNOW LIKELY AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. LOWS
IN THE MID 30S. NORTH WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
35 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
MOSTLY SUNNY. A 50 PERCENT CHANCE OF RAIN AND SNOW IN
THE MORNING. HIGHS 52 TO 58. NORTH WINDS 10 TO 20 MPH. GUSTS UP
TO 45 MPH DECREASING TO 35 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
FRIDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 67. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTH WINDS
UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 69 TO 77.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS 73 TO 79.
MEMORIAL DAY
SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 73 TO 79.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
TUESDAY
BREEZY. MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 67 TO 73. CHANCE OF
PRECIPITATION 50 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 LOWER 40S. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 69. CHANCE
OF PRECIPITATION 40 PERCENT.
TEMPERATURE / PRECIPITATION
DILLON 34 57 31 66 / 80 30 0 0
MTZ329-211000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
336 PM MDT WED MAY 20 2026
TONIGHT
RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN SNOW AND RAIN LIKELY AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 3 INCHES. SNOW LEVEL 7600 FEET.
LOWS IN THE LOWER 30S. NORTH WINDS 5 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY
BREEZY. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
SNOW IN THE MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS
44 TO 52. NORTH WINDS 10 TO 25 MPH WITH GUSTS TO AROUND 50 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH SHIFTING TO THE
SOUTHEAST UP TO 5 MPH AFTER MIDNIGHT.
FRIDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 53 TO 61. SOUTH WINDS
UP TO 5 MPH SHIFTING TO THE WEST WITH GUSTS TO AROUND 25 MPH IN
THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
SATURDAY
WARMER, SUNNY. HIGHS 62 TO 70.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 65 TO 73.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
MEMORIAL DAY
WINDY, SUNNY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 72.
MONDAY NIGHT
BREEZY. PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
WINDY. MOSTLY SUNNY. SLIGHT CHANCE OF RAIN 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. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 63. CHANCE
OF PRECIPITATION 40 PERCENT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page