402
FPUS55 KTFX 180437
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
1037 PM MDT SUN MAY 17 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR THE REST OF TONIGHT, MONDAY, MONDAY NIGHT, AND TUESDAY.
MTZ301-181000-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW
LATE IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. PATCHY
FOG AFTER MIDNIGHT. LOWS 19 TO 25. NORTH WINDS UP TO 10 MPH
SHIFTING TO THE WEST AFTER MIDNIGHT.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
CHANCE OF RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 38 TO 48. WEST WINDS 5 TO
10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AND
SNOW IN THE EVENING. LOWS 27 TO 33. SOUTHWEST WINDS 5 TO 15 MPH.
GUSTS UP TO 25 MPH INCREASING TO 35 MPH AFTER MIDNIGHT.
TUESDAY
BREEZY. NOT AS COOL. PARTLY SUNNY. A 20 PERCENT CHANCE
OF RAIN AND SNOW IN THE AFTERNOON. HIGHS 43 TO 55. WEST WINDS
10 TO 25 MPH WITH GUSTS TO AROUND 40 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. LOWS 32 TO 38. SOUTHWEST WINDS 10 TO 20 MPH.
GUSTS UP TO 40 MPH DECREASING TO 30 MPH AFTER MIDNIGHT.
WEDNESDAY
RAIN AND SNOW LIKELY IN THE MORNING, THEN RAIN AND
SNOW IN THE AFTERNOON. LIGHT SNOW ACCUMULATIONS. HIGHS 42 TO 52.
CHANCE OF PRECIPITATION 80 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW IN
THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. LOWS 29 TO 35. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY
NOT AS COOL. PARTLY SUNNY. A 20 PERCENT CHANCE OF
RAIN IN THE AFTERNOON. HIGHS 48 TO 58.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 50 TO 60. CHANCE OF PRECIPITATION
50 PERCENT.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF RAIN. LOWS 35 TO 41. HIGHS 54 TO 64.
SATURDAY NIGHT AND SUNDAY
BREEZY. PARTLY CLOUDY. LOWS 37 TO
43. HIGHS 54 TO 64.
MTZ307-181000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
1037 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...
REST OF TONIGHT
MOSTLY CLOUDY LATE IN THE EVENING THEN
BECOMING PARTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW LATE IN THE
EVENING. PATCHY FOG AFTER MIDNIGHT. NEAR STEADY TEMPERATURE IN
THE MID 20S. NORTH WINDS UP TO 10 MPH.
MONDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH CHANCE OF SNOW SHOWERS, RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 37 TO 45. NORTH WINDS UP TO
10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AND
SNOW IN THE EVENING. LOWS 23 TO 29. WEST WINDS UP TO 10 MPH.
GUSTS UP TO 30 MPH AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
AND SNOW IN THE AFTERNOON. HIGHS 43 TO 53. WEST WINDS 5 TO 15 MPH
WITH GUSTS TO AROUND 35 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 29 TO 35. WEST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 35 MPH.
WEDNESDAY
MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN AND SNOW IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS, SNOW LIKELY
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 43 TO
55. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN AND SNOW LIKELY IN THE
EVENING, THEN CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 28 TO 34. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 49 TO 59.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 32 TO 38.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 50 TO 60. CHANCE OF PRECIPITATION
40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 33 TO 39.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 54 TO 66.
LOWS 36 TO 42.
SUNDAY
SUNNY. HIGHS 55 TO 67.
MTZ302-181000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE MID 20S. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 50S. WEST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH IN THE
AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 30S. SOUTHWEST WINDS 5 TO 15 MPH.
GUSTS UP TO 30 MPH AFTER MIDNIGHT.
TUESDAY
BREEZY. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN
THE AFTERNOON. HIGHS AROUND 60. WEST WINDS 15 TO 25 MPH WITH
GUSTS TO AROUND 40 MPH.
TUESDAY NIGHT
BREEZY. PARTLY CLOUDY. LOWS IN THE UPPER 30S.
WEST WINDS 10 TO 25 MPH DECREASING TO 10 TO 15 MPH AFTER
MIDNIGHT.
WEDNESDAY
RAIN LIKELY IN THE MORNING, THEN RAIN IN THE
AFTERNOON. HIGHS IN THE MID 50S. CHANCE OF RAIN 80 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN IN THE
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF RAIN 50 PERCENT.
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
FRIDAY
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 60S. CHANCE OF PRECIPITATION
40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
BREEZY. PARTLY CLOUDY. HIGHS IN THE
UPPER 60S. LOWS IN THE LOWER 40S.
MTZ308-181000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY IN THE LATE EVENING AND EARLY
MORNING THEN BECOMING PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT.
NEAR STEADY TEMPERATURE AROUND 30. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
NOT AS COOL. PATCHY FOG IN THE MORNING. SUNNY IN THE
MORNING, THEN PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 50S.
NORTH WINDS 5 TO 10 MPH SHIFTING TO THE EAST IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 30S. SOUTHWEST WINDS 5 TO 10 MPH.
GUSTS UP TO 30 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S. WEST WINDS 5 TO 15 MPH WITH
GUSTS TO AROUND 35 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF PRECIPITATION
70 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE
OF RAIN 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
FRIDAY
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
40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE MID 40S.
MTZ303-181000-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE MID 20S. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A
20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE MID 50S.
NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE SOUTHEAST IN THE
AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S. WEST WINDS 5 TO 20 MPH WITH
GUSTS TO AROUND 35 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
10 TO 20 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF
RAIN 70 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
FRIDAY
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
40 PERCENT.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 70S.
TEMPERATURE / PRECIPITATION
CUT BANK 24 54 31 63 / 10 20 10 20
MTZ304-181000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW
LATE IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. PATCHY
FOG AFTER MIDNIGHT. LOWS IN THE MID 20S. NORTHWEST WINDS UP TO
10 MPH.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
HIGHS IN THE LOWER 50S. NORTH WINDS UP TO 10 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 26 TO 32. SOUTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE LOWER
60S. SOUTHWEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS AROUND 40. WEST WINDS 5 TO 15 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLOUDY. A 50 PERCENT
CHANCE OF RAIN. HIGHS 56 TO 62. LOWS IN THE MID 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER
40S. CHANCE OF RAIN 30 PERCENT.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE MID 60S. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE MID 70S.
MTZ305-181000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
LATE IN THE EVENING. PATCHY FOG EARLY IN THE MORNING. LOWS IN THE
UPPER 20S. NORTH WINDS 5 TO 15 MPH.
MONDAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE
MID 50S. NORTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTHEAST
WINDS 5 TO 10 MPH.
TUESDAY
WARMER. MOSTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN
THE AFTERNOON. HIGHS IN THE MID 60S. SOUTHWEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
CHANCE OF RAIN 50 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN IN THE
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER
40S. CHANCE OF RAIN 30 PERCENT.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 60S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS IN THE MID 40S.
TEMPERATURE / PRECIPITATION
HAVRE 27 54 26 66 / 20 10 0 50
MTZ306-181000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
COLDER. MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN AND SNOW LATE IN THE EVENING. LOWS IN THE UPPER 20S. NORTH
WINDS 10 TO 20 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 46 TO 52. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. EAST WINDS
5 TO 10 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SOUTH WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY. LOWS AROUND 40.
SOUTHWEST WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
WEDNESDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF RAIN 30 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
FRIDAY
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.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
BREEZY. PARTLY CLOUDY. HIGHS IN THE
MID 70S. LOWS IN THE MID 40S.
MTZ309-181000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY
AFTER MIDNIGHT THEN BECOMING PARTLY CLOUDY. PATCHY FOG AFTER
MIDNIGHT. LOWS IN THE MID 20S. NORTHWEST WINDS UP TO 5 MPH.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
HIGHS IN THE MID 50S. NORTH WINDS UP TO 5 MPH SHIFTING TO THE
EAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE MID 60S. WEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. WEST WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN RAIN LIKELY IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF
RAIN 70 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 30S.
CHANCE OF RAIN 50 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
FRIDAY
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
30 PERCENT.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 40.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS IN THE MID 40S.
MTZ310-181000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN LATE IN
THE EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.
PATCHY FOG AFTER MIDNIGHT. LOWS IN THE UPPER 20S. NORTHWEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
HIGHS IN THE LOWER 50S. NORTH WINDS 5 TO 10 MPH. GUSTS UP TO
30 MPH IN THE MORNING.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTHEAST
WINDS 5 TO 10 MPH.
TUESDAY
WARMER. SUNNY IN THE MORNING, THEN PARTLY SUNNY WITH A
20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST WINDS
5 TO 15 MPH.
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 LOWER 60S. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
RAIN. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 60S. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE UPPER 70S.
MTZ311-181000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AND
SNOW LATE IN THE EVENING. LOWS IN THE UPPER 20S. NORTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
MONDAY
MOSTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
SUNNY. HIGHS 46 TO 52. NORTH WINDS 5 TO 15 MPH. GUSTS UP TO
30 MPH IN THE MORNING.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. EAST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.
TUESDAY
WARMER. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN
THE AFTERNOON. HIGHS 59 TO 65. SOUTHWEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS UP TO 15 MPH.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 58 TO 64. CHANCE
OF PRECIPITATION 50 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF RAIN 50 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 62 TO 68.
THURSDAY NIGHT
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE MID 40S.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 63 TO 69. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 71 TO 79. LOWS IN
THE UPPER 40S.
MTZ312-181000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
LATE IN THE EVENING. SLIGHT CHANCE OF SNOW EARLY IN THE MORNING.
PATCHY FOG AFTER MIDNIGHT. NEAR STEADY TEMPERATURE IN THE LOWER
30S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
HIGHS 48 TO 54. NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTH WINDS
5 TO 10 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO
15 MPH.
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 40.
SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 60. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE
OF RAIN 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
FRIDAY
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.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE UPPER 40S.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 28 52 29 63 / 20 10 0 30
MTZ313-181000-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
NEAR STEADY TEMPERATURE IN THE LOWER 30S. NORTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 35 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
MONDAY
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE MID
40S. NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. EAST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE
UPPER 50S. WEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTHWEST WINDS UP TO 15 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER
50S. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
IN THE LOWER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
FRIDAY
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.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER
70S. LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S.
MTZ314-181000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
LATE IN THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
NEAR STEADY TEMPERATURE IN THE MID 30S. NORTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO AROUND 35 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
MONDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN THE
MORNING. HIGHS 45 TO 51. NORTHWEST WINDS 5 TO 15 MPH. GUSTS UP TO
35 MPH IN THE MORNING.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. EAST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS AROUND 40. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 66. CHANCE
OF PRECIPITATION 50 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE
OF RAIN 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
FRIDAY
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.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
LEWISTOWN 27 46 23 59 / 40 40 0 30
MTZ315-181000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
1037 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...
REST OF TONIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SNOW. PATCHY FOG AFTER MIDNIGHT. NEAR STEADY TEMPERATURE IN THE
UPPER 20S. NORTH WINDS UP TO 5 MPH. GUSTS UP TO 20 MPH LATE IN
THE EVENING.
MONDAY
NOT AS COOL. MOSTLY SUNNY. A 50 PERCENT CHANCE OF SNOW
AND RAIN IN THE AFTERNOON. HIGHS 41 TO 49. NORTH WINDS UP TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 20S. WEST WINDS UP
TO 10 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS 49 TO 57. WEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS
UP TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 49 TO 59. CHANCE
OF PRECIPITATION 50 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS, SNOW LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 54 TO 62.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 57 TO 65.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS 63 TO 71.
MTZ316-181000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. NEAR STEADY
TEMPERATURE IN THE LOWER 30S. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
NOT AS COOL. MOSTLY SUNNY. PATCHY FOG IN THE MORNING.
HIGHS 47 TO 53. NORTH WINDS UP TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. SLIGHT CHANCE OF RAIN AND
SNOW IN THE MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON.
HIGHS 56 TO 62. SOUTHWEST WINDS 5 TO 15 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS UP TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 55 TO 63. CHANCE OF PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 59 TO 67.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S.
FRIDAY
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 69. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 68 TO 77. LOWS IN
THE MID 40S.
MTZ317-181000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
1037 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE
LATE EVENING AND EARLY MORNING, THEN CHANCE OF SNOW EARLY IN THE
MORNING. PATCHY FOG AFTER MIDNIGHT. NEAR STEADY TEMPERATURE IN
THE MID 20S. NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
40 MPH. CHANCE OF SNOW 50 PERCENT.
MONDAY
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS 36 TO 44.
NORTH WINDS 5 TO 15 MPH. GUSTS UP TO 45 MPH DECREASING TO 30 MPH
IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 20 TO 28. EAST WINDS 5 TO
10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. GUSTS UP TO
25 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN
THE MORNING, THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE
AFTERNOON. HIGHS 48 TO 56. WEST WINDS 5 TO 15 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 31 TO 39. SOUTHWEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 48 TO 56. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS, SNOW LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN AND SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS
30 TO 36. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 53 TO
59. CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS 36 TO 42. CHANCE
OF RAIN 30 PERCENT.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 55 TO 61. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 36 TO 42.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 62 TO 70.
LOWS 39 TO 47.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 64 TO 70.
MTZ318-181000-
SNOWY AND JUDITH MOUNTAINS-
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
BREEZY. CLOUDY WITH A 50 PERCENT CHANCE OF
SNOW. NEAR STEADY TEMPERATURE IN THE UPPER 20S. NORTHWEST WINDS
10 TO 25 MPH WITH GUSTS TO AROUND 45 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 35 TO 43. NORTHWEST
WINDS 10 TO 20 MPH. GUSTS UP TO 45 MPH IN THE MORNING. CHANCE OF
SNOW 50 PERCENT.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. NORTH WINDS
UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. GUSTS UP TO
25 MPH.
TUESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 50 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 49 TO
57. SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
TUESDAY NIGHT
NOT AS COOL. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 50 TO 58. CHANCE
OF PRECIPITATION 50 PERCENT.
WEDNESDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW LIKELY AFTER
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE MID 30S. CHANCE
OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
54 TO 60.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF RAIN 30 PERCENT.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 56 TO 62.
CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS AROUND 40.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 64 TO 70.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 73.
MTZ319-181000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG EARLY IN THE
MORNING. LOWS IN THE UPPER 20S. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE
MID 50S. NORTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTHWEST
WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S. SOUTH WINDS 5 TO 10 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. A 30 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE
OF RAIN 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 70.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
HELENA 31 55 29 62 / 10 10 10 20
MTZ320-181000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN
THE LATE EVENING AND EARLY MORNING. NEAR STEADY TEMPERATURE IN
THE UPPER 20S. NORTH WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
35 MPH.
MONDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
36 TO 46. NORTH WINDS 5 TO 15 MPH. GUSTS UP TO 40 MPH DECREASING
TO 30 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 21 TO 27. NORTHEAST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. GUSTS UP TO
25 MPH.
TUESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 48 TO
56. WEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
MOSTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 49 TO 59.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE MID
30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 53 TO 61.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 56 TO 64. CHANCE OF PRECIPITATION
40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 30S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 61 TO 74. LOWS IN
THE LOWER 40S.
MTZ321-181000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. NEAR STEADY TEMPERATURE IN THE
UPPER 20S. NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. NORTH WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. NORTHEAST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS IN THE MID 50S. WEST WINDS 5 TO 15 MPH.
TUESDAY NIGHT
NOT AS COLD. PARTLY CLOUDY. LOWS IN THE MID 30S.
WEST WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 50S.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 60.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF RAIN 30 PERCENT.
FRIDAY
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 60S. CHANCE OF PRECIPITATION
40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 30S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 40S.
MTZ322-181000-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SNOW. PATCHY FOG EARLY IN THE MORNING. NEAR STEADY TEMPERATURE IN
THE MID 20S. NORTH WINDS UP TO 10 MPH. GUSTS UP TO 45 MPH
DECREASING TO 35 MPH AFTER MIDNIGHT.
MONDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 38 TO 48. NORTH WINDS
5 TO 15 MPH. GUSTS UP TO 40 MPH DECREASING TO 30 MPH IN THE
AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 21 TO 27. NORTHWEST WINDS UP
TO 10 MPH SHIFTING TO THE WEST AFTER MIDNIGHT. GUSTS UP TO
25 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
AND SNOW IN THE AFTERNOON. HIGHS 47 TO 57. WEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 28 TO 36. WEST WINDS UP TO
10 MPH.
WEDNESDAY
MOSTLY SUNNY. A 30 PERCENT CHANCE OF RAIN AND SNOW
IN THE AFTERNOON. HIGHS 49 TO 59.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AND
SNOW AFTER MIDNIGHT. LOWS 30 TO 36. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 54 TO 62.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 34 TO 40.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 56 TO
66. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS 35 TO 44.
HIGHS 62 TO 74.
MTZ323-181000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY. LOWS AROUND 30. NORTHWEST WINDS
5 TO 15 MPH. GUSTS UP TO 40 MPH DECREASING TO 30 MPH AFTER
MIDNIGHT.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 50. NORTH WINDS 5 TO 15 MPH
WITH GUSTS TO AROUND 30 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTH WINDS
5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS AROUND 60. SOUTH WINDS UP TO 10 MPH SHIFTING TO
THE WEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 40. NORTHWEST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE UPPER 60S. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE MID 40S.
MTZ324-181000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
NORTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 47 TO 53. NORTH WINDS 5 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. NORTH WINDS UP
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS AROUND 60. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS UP TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
LOWS IN THE UPPER 30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE UPPER 60S. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS IN THE MID 70S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
MTZ325-181000-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW
AFTER MIDNIGHT. LOWS IN THE MID 20S. NORTH WINDS 10 TO 20 MPH
WITH GUSTS TO AROUND 40 MPH.
MONDAY
BREEZY. MOSTLY SUNNY. A 20 PERCENT CHANCE OF SNOW IN
THE MORNING. HIGHS IN THE MID 40S. NORTH WINDS 10 TO 25 MPH WITH
GUSTS TO AROUND 40 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 20 TO 26. NORTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE SOUTH AFTER
MIDNIGHT.
TUESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT
NOT AS COLD. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
FRIDAY
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 UPPER 60S. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS
IN THE MID 70S.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 70S.
MTZ326-181000-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW
AFTER MIDNIGHT. PATCHY FOG EARLY IN THE MORNING. LOWS IN THE
UPPER 20S. NORTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 30 MPH LATE
IN THE EVENING.
MONDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF SNOW IN THE
MORNING. HIGHS IN THE UPPER 40S. NORTHWEST WINDS 5 TO 10 MPH WITH
GUSTS TO AROUND 25 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. EAST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.
TUESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. HIGHS
IN THE UPPER 50S. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE MID 30S.
WEST WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
FRIDAY
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
30 PERCENT.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS IN THE MID 70S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 25 51 22 60 / 10 10 0 10
BOZEMAN MSU 27 46 24 58 / 20 20 10 10
MTZ330-181000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW LATE IN
THE EVENING, THEN CHANCE OF SNOW AFTER MIDNIGHT. LOWS 17 TO 25.
NORTH WINDS 10 TO 20 MPH. GUSTS UP TO 45 MPH INCREASING TO 60 MPH
AFTER MIDNIGHT. CHANCE OF SNOW 40 PERCENT.
MONDAY
BREEZY. PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW.
HIGHS 30 TO 42. NORTH WINDS 10 TO 25 MPH. GUSTS UP TO 60 MPH
DECREASING TO 40 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 16 TO 22. NORTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 35 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 20 PERCENT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS
42 TO 52. SOUTHWEST WINDS UP TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 27 TO 33. SOUTHWEST WINDS UP TO 10 MPH WITH
GUSTS TO AROUND 25 MPH.
WEDNESDAY
NOT AS COOL. SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH A 20 PERCENT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS
46 TO 58.
WEDNESDAY NIGHT
RAIN SHOWERS, SNOW SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW LIKELY AND
CHANCE OF RAIN AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS
29 TO 35. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 50 TO 60.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
AND SNOW. LOWS 32 TO 38.
FRIDAY
MOSTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE MORNING,
THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 53 TO 63. CHANCE OF PRECIPITATION
40 PERCENT.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS 33 TO 43.
HIGHS 59 TO 72.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 21 41 16 51 / 10 10 10 20
MTZ327-181000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY LATE IN THE EVENING THEN
BECOMING PARTLY CLOUDY. A 50 PERCENT CHANCE OF SNOW LATE IN THE
EVENING. PATCHY FOG EARLY IN THE MORNING. LOWS 18 TO 24. NORTH
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 36 TO 46. NORTH WINDS 5 TO 15 MPH.
GUSTS UP TO 40 MPH DECREASING TO 30 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. NORTH WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE WEST
AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
AND SNOW IN THE AFTERNOON. HIGHS 45 TO 53. WEST WINDS UP TO
15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. WEST WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN AND SNOW
IN THE AFTERNOON. HIGHS 47 TO 57.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE
LOWER 30S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 51 TO 61.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 54 TO 64. LOWS IN
THE MID 30S.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 59 TO 69.
LOWS IN THE UPPER 30S.
SUNDAY
SUNNY. HIGHS 61 TO 71.
MTZ328-181000-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
MOSTLY CLOUDY LATE IN THE EVENING THEN
CLEARING. A 20 PERCENT CHANCE OF SNOW LATE IN THE EVENING. LOWS
IN THE MID 20S. NORTH WINDS 15 TO 20 MPH DECREASING TO 5 TO
15 MPH AFTER MIDNIGHT. GUSTS UP TO 45 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 43 TO 49. NORTH WINDS 10 TO 20 MPH
WITH GUSTS TO AROUND 45 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. NORTHEAST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
IN THE AFTERNOON. HIGHS 54 TO 60. SOUTHWEST WINDS UP TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY.
HIGHS 58 TO 64.
WEDNESDAY 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 30S. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 61 TO 67.
THURSDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE UPPER 30S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 64 TO 70.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS 70 TO 78.
TEMPERATURE / PRECIPITATION
DILLON 25 48 23 60 / 20 10 10 20
MTZ329-181000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
1037 PM MDT SUN MAY 17 2026
REST OF TONIGHT
WINDY. MOSTLY CLOUDY. CHANCE OF SNOW LATE IN
THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN
THE LOWER 20S. NORTH WINDS 15 TO 30 MPH WITH GUSTS TO AROUND
65 MPH. CHANCE OF SNOW 50 PERCENT.
MONDAY
WINDY. MOSTLY SUNNY. A 20 PERCENT CHANCE OF SNOW IN THE
MORNING. HIGHS 36 TO 44. NORTH WINDS 15 TO 30 MPH. GUSTS UP TO
65 MPH DECREASING TO 55 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 20. NORTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 35 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN
AND SNOW IN THE AFTERNOON. HIGHS 46 TO 54. SOUTHWEST WINDS UP TO
10 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 26 TO 32. SOUTHWEST WINDS 5 TO 15 MPH
DECREASING TO UP TO 5 MPH AFTER MIDNIGHT.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY.
HIGHS 50 TO 58.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN AND SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY
MOSTLY SUNNY. HIGHS 55 TO 61.
THURSDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 30S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 58 TO 64.
FRIDAY NIGHT THROUGH SUNDAY
BREEZY. PARTLY CLOUDY. LOWS IN THE
UPPER 30S. HIGHS 64 TO 72.
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