599
FPUS55 KTFX 180633
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
1232 AM MDT SAT APR 18 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR .TONIGHT THROUGH TODAY..., SUNDAY, SUNDAY NIGHT, AND
MONDAY.
MTZ301-191000-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 37 TO 47. LOWS 20 TO 31.
SOUTHWEST WINDS 5 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 46 TO 56. SOUTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 34 TO 40. SOUTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 54 TO 64. LOWS
37 TO 43. SOUTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 59 TO 69.
TUESDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN MOSTLY CLOUDY WITH CHANCE OF RAIN AFTER MIDNIGHT.
LOWS 38 TO 44. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
COOLER. MOSTLY CLOUDY. CHANCE OF RAIN IN THE
MORNING, THEN RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. MODERATE SNOW ACCUMULATIONS.
HIGHS 44 TO 54. CHANCE OF PRECIPITATION 90 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. SNOW AND RAIN IN THE EVENING,
THEN SNOW AFTER MIDNIGHT. HEAVY SNOW ACCUMULATIONS. LOWS 24 TO
30. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
BREEZY, COLDER. MOSTLY CLOUDY WITH A 50 PERCENT
CHANCE OF SNOW. HIGHS 30 TO 38.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW. LOWS IN THE LOWER 20S. HIGHS 31 TO 39.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE LOWER 20S.
SATURDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
34 TO 42.
MTZ307-191000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. MOSTLY CLEAR WITH A 20 PERCENT
CHANCE OF SNOW. HIGHS 39 TO 49. LOWS 17 TO 30. WEST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 49 TO 59. SOUTHWEST WINDS
5 TO 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 33 TO 39. WEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 30 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 56 TO 66. LOWS
36 TO 42. WEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 61 TO 71.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS 38 TO 44.
WEDNESDAY
PARTLY SUNNY WITH CHANCE OF RAIN IN THE MORNING,
THEN CLOUDY WITH RAIN SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 47 TO 57. CHANCE OF
PRECIPITATION 90 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN AND SNOW. SNOW MAY BE HEAVY AT
TIMES AFTER MIDNIGHT. HEAVY SNOW ACCUMULATIONS. LOWS 25 TO 31.
CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
COLDER. SNOW IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS 29 TO 39. CHANCE OF
SNOW 80 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW. LOWS 18 TO 24. HIGHS 32 TO 40.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS 18 TO 24.
SATURDAY
PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SNOW. HIGHS
34 TO 42.
MTZ302-191000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE LOWER 50S. LOWS 23 TO 30. SOUTHWEST WINDS
5 TO 20 MPH.
SUNDAY
WARMER, SUNNY. HIGHS 60 TO 66. SOUTHWEST WINDS 5 TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS AROUND 70. LOWS
IN THE LOWER 40S. SOUTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
BREEZY, COOLER. PARTLY SUNNY. CHANCE OF RAIN IN THE
MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 61. CHANCE OF
PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
WINDY, COLDER. RAIN AND SNOW IN THE EVENING,
THEN SNOW AND RAIN LIKELY AFTER MIDNIGHT. LIGHT SNOW
ACCUMULATIONS. LOWS AROUND 30. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
WINDY, COLDER. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE
OF SNOW. HIGHS IN THE LOWER 40S.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE MID 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ308-191000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE MID 50S. LOWS 24 TO 32. SOUTHWEST WINDS UP
TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS AROUND 40. SOUTHWEST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
LOWS IN THE MID 40S. WEST WINDS UP TO 15 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 60S. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN AND SNOW. LIGHT SNOW
ACCUMULATIONS. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
BREEZY, COLDER. MOSTLY CLOUDY. SNOW LIKELY IN THE
MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. LIGHT SNOW
ACCUMULATIONS. HIGHS IN THE LOWER 40S. CHANCE OF SNOW 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
SNOW. HIGHS IN THE MID 40S. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ303-191000-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 21 TO 27. WEST WINDS UP TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS UP TO
10 MPH INCREASING TO 10 TO 15 MPH IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. WEST WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 40S. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
BREEZY, COOLER. PARTLY SUNNY. SLIGHT CHANCE OF RAIN
IN THE MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF
PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
WINDY, COLDER. RAIN AND SNOW LIKELY. LIGHT
SNOW ACCUMULATIONS. LOWS AROUND 30. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
WINDY, COLDER. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE
OF SNOW. HIGHS IN THE LOWER 40S.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. HIGHS IN THE MID 40S.
TEMPERATURE / PRECIPITATION
CUT BANK 23 67 36 73 / 20 0 0 0
MTZ304-191000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
LOWS 22 TO 29. SOUTH WINDS UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST 5 TO 15 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 40. WEST WINDS 5 TO
15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS 39 TO 45. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE MID
60S. CHANCE OF RAIN 50 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN AND SNOW IN THE EVENING,
THEN RAIN AND SNOW LIKELY AFTER MIDNIGHT. LIGHT SNOW
ACCUMULATIONS. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
80 PERCENT.
THURSDAY
BREEZY. MUCH COLDER. MOSTLY CLOUDY WITH A 50 PERCENT
CHANCE OF SNOW. HIGHS IN THE LOWER 40S.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE MID 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ305-191000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
LOWS IN THE MID 20S. EAST WINDS UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO
15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY AND MONDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 40S. SOUTH WINDS UP TO 10 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS AROUND 80. LOWS
IN THE UPPER 40S.
WEDNESDAY
COOLER. PARTLY SUNNY. A 40 PERCENT CHANCE OF RAIN IN
THE AFTERNOON. HIGHS AROUND 70.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW LIKELY
AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
WINDY. MUCH COOLER. MOSTLY CLOUDY. CHANCE OF SNOW AND
RAIN IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE MID 40S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW
AND RAIN IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 20S.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. HIGHS IN THE UPPER 40S.
TEMPERATURE / PRECIPITATION
HAVRE 26 69 38 74 / 0 0 0 0
MTZ306-191000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS 51 TO 57. LOWS
21 TO 28. SOUTHEAST WINDS 5 TO 15 MPH.
SUNDAY
WARMER, SUNNY. HIGHS 61 TO 67. SOUTHEAST WINDS 5 TO
15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE MID 30S.
SOUTH WINDS 5 TO 15 MPH.
MONDAY
SUNNY. HIGHS AROUND 70. NORTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS 5 TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
WEDNESDAY
PARTLY SUNNY. A 30 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE LOWER 70S.
WEDNESDAY NIGHT
WINDY, COLDER. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW LIKELY
AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
WINDY. MUCH COOLER. MOSTLY CLOUDY. SNOW AND RAIN
LIKELY IN THE MORNING, THEN CHANCE OF SNOW AND RAIN IN THE
AFTERNOON. HIGHS IN THE MID 40S. CHANCE OF PRECIPITATION
60 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW
AND RAIN IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 20S.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 20S.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. HIGHS IN THE MID 40S.
MTZ309-191000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 22 TO 27. SOUTHWEST WINDS
UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE MID 30S.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE LOWER 40S. SOUTHWEST WINDS UP TO 15 MPH.
TUESDAY
SUNNY. HIGHS AROUND 80.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. 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 60S. CHANCE OF
PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN AND SNOW. LOWS IN THE
LOWER 30S. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
BREEZY. MUCH COLDER. MOSTLY CLOUDY. SNOW LIKELY IN
THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. LIGHT SNOW
ACCUMULATIONS. HIGHS IN THE MID 40S. CHANCE OF SNOW 60 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ310-191000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 25 TO 30. SOUTH WINDS UP TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 70S. WEST WINDS UP TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 10 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER
80S. LOWS IN THE UPPER 40S.
WEDNESDAY
COOLER. PARTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN
THE AFTERNOON. HIGHS AROUND 70.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
BREEZY. MUCH COOLER. MOSTLY CLOUDY. SNOW AND RAIN
LIKELY IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON.
MODERATE SNOW ACCUMULATIONS. HIGHS IN THE MID 40S. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN IN THE
EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE
UPPER 20S. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND SNOW
IN THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. LOWS IN THE MID 20S. CHANCE OF PRECIPITATION
20 PERCENT.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ311-191000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS 52 TO 58. LOWS
25 TO 31. SOUTHEAST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SUNDAY
WARMER, SUNNY. HIGHS 62 TO 68. SOUTH WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS UP TO
10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS UP TO 10 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS 76 TO 82. LOWS
IN THE LOWER 50S.
WEDNESDAY
PARTLY SUNNY. A 40 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 68 TO 74.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW WITH RAIN
LIKELY AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE MID
30S. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
WINDY. MUCH COLDER. MOSTLY CLOUDY. SNOW AND RAIN
LIKELY IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON.
MODERATE SNOW ACCUMULATIONS. HIGHS IN THE MID 40S. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. LOWS IN THE MID 20S. CHANCE OF SNOW 30 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
SNOW. HIGHS IN THE MID 40S. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ312-191000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 25 TO 32. SOUTHWEST WINDS
UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO
15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 40.
SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE MID 40S. SOUTH WINDS 5 TO 10 MPH.
TUESDAY
SUNNY. HIGHS AROUND 80.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 60S. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
BREEZY. MUCH COLDER. MOSTLY CLOUDY. SNOW AND RAIN
LIKELY IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON.
MODERATE SNOW ACCUMULATIONS. HIGHS IN THE MID 40S. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND SNOW
IN THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. LOWS IN THE MID 20S. CHANCE OF PRECIPITATION
20 PERCENT.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 28 68 39 75 / 20 0 0 0
MTZ313-191000-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE MID 50S. LOWS 23 TO 32. SOUTHWEST WINDS
5 TO 20 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS 5 TO
15 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. WEST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S.
WEDNESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN RAIN LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE
OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE LOWER 30S. CHANCE
OF PRECIPITATION 90 PERCENT.
THURSDAY
WINDY. MUCH COLDER. SNOW AND RAIN IN THE MORNING,
THEN SNOW LIKELY IN THE AFTERNOON. MODERATE SNOW ACCUMULATIONS.
HIGHS IN THE LOWER 40S. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE LOWER 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF SNOW AND RAIN IN THE AFTERNOON. HIGHS IN
THE MID 40S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ314-191000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 50S.
LOWS 25 TO 30. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SUNDAY
WARMER, SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS
UP TO 10 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS UP TO 15 MPH.
MONDAY
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN THE
LOWER 70S. NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS AROUND 80. LOWS
IN THE LOWER 50S.
WEDNESDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 70 TO 76.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION
80 PERCENT.
THURSDAY
WINDY. MUCH COOLER. MOSTLY CLOUDY. SNOW AND RAIN
LIKELY IN THE MORNING, THEN CHANCE OF SNOW AND RAIN IN THE
AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS IN THE MID 40S.
CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN IN THE
EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE
MID 20S. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
SNOW. HIGHS IN THE MID 40S. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
TEMPERATURE / PRECIPITATION
LEWISTOWN 25 65 40 71 / 10 0 0 0
MTZ315-191000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. MOSTLY CLEAR WITH A 20 PERCENT
CHANCE OF SNOW. HIGHS 45 TO 53. LOWS 21 TO 32. SOUTHWEST WINDS UP
TO 15 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 55 TO 63. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 62 TO 70. LOWS IN
THE LOWER 40S. SOUTHWEST WINDS UP TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 66 TO 74.
TUESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
WEDNESDAY
COOLER. PARTLY SUNNY WITH CHANCE OF RAIN IN THE
MORNING, THEN CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 52 TO 60. CHANCE OF
PRECIPITATION 90 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN AND SNOW. MODERATE SNOW
ACCUMULATIONS. LOWS AROUND 30. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY
COLDER. SNOW IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS 33 TO 41. CHANCE OF
SNOW 90 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW. LOWS IN THE LOWER 20S. HIGHS 36 TO 44.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE LOWER 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS 38 TO 46. CHANCE OF
SNOW 30 PERCENT.
MTZ316-191000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS 51 TO 57. LOWS 24 TO 33. SOUTHWEST WINDS UP TO
15 MPH.
SUNDAY
WARMER, SUNNY. HIGHS 61 TO 67. SOUTH WINDS 5 TO 15 MPH.
SUNDAY NIGHT
NOT AS COOL. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 68 TO 74. LOWS IN
THE MID 40S. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 73 TO 79.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 66.
CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN SHOWERS, SNOW AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW AFTER
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE LOWER 30S. CHANCE
OF PRECIPITATION 90 PERCENT.
THURSDAY
COLDER. SNOW LIKELY. MODERATE SNOW ACCUMULATIONS.
HIGHS 38 TO 44. CHANCE OF SNOW 70 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS 40 TO 46.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS 43 TO
49. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ317-191000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. MOSTLY CLEAR WITH A 20 PERCENT
CHANCE OF SNOW. HIGHS 44 TO 52. LOWS 19 TO 33. SOUTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 54 TO 62. SOUTHWEST WINDS
5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 42. SOUTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 69. WEST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 46. SOUTHWEST WINDS
5 TO 15 MPH.
TUESDAY
SUNNY. HIGHS 66 TO 74.
TUESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 44 TO 50.
WEDNESDAY
MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE AFTERNOON.
HIGHS 56 TO 64. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
MUCH COLDER. RAIN SHOWERS, SNOW SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW AND RAIN
AFTER MIDNIGHT. HEAVY SNOW ACCUMULATIONS. LOWS 26 TO 32. CHANCE
OF PRECIPITATION 90 PERCENT.
THURSDAY
BREEZY. MUCH COLDER. SNOW IN THE MORNING, THEN SNOW
LIKELY IN THE AFTERNOON. SNOW MAY BE HEAVY AT TIMES IN THE
MORNING. HEAVY SNOW ACCUMULATIONS. HIGHS 33 TO 39. CHANCE OF SNOW
90 PERCENT.
THURSDAY NIGHT
COLDER. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE
OF SNOW. LOWS 18 TO 24.
FRIDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS
34 TO 40.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS 18 TO 24.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS 38 TO 44. CHANCE OF
SNOW 40 PERCENT.
MTZ318-191000-
SNOWY AND JUDITH MOUNTAINS-
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. PARTLY CLOUDY. HIGHS 46 TO 52.
LOWS 20 TO 31. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 57 TO 63. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE LOWER
40S. SOUTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 64 TO 70. WEST WINDS 5 TO 15 MPH
WITH GUSTS TO AROUND 30 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. GUSTS UP
TO 25 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 70 TO 76.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE UPPER 40S.
WEDNESDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 62 TO 68.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN IN THE EVENING, THEN RAIN
AND SNOW AFTER MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS AROUND
30. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
WINDY. MUCH COLDER. SNOW IN THE MORNING, THEN SNOW
LIKELY IN THE AFTERNOON. HEAVY SNOW ACCUMULATIONS. HIGHS 35 TO
41. CHANCE OF SNOW 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 20S.
CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS 36 TO 42. CHANCE OF
SNOW 40 PERCENT.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE LOWER 20S. HIGHS 38 TO 44.
MTZ319-191000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 22 TO 30. SOUTH WINDS UP TO
15 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO
10 MPH.
SUNDAY NIGHT
NOT AS COOL. MOSTLY CLEAR IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS UP
TO 10 MPH.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE LOWER 40S. SOUTH WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS AROUND 80.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
MUCH COOLER. MOSTLY CLOUDY. SNOW AND RAIN LIKELY IN
THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS IN THE
MID 40S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN AND SNOW. HIGHS IN THE UPPER 40S. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.
TEMPERATURE / PRECIPITATION
HELENA 27 69 40 75 / 20 0 0 0
MTZ320-191000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. MOSTLY CLEAR WITH A 20 PERCENT
CHANCE OF SNOW. HIGHS 42 TO 52. LOWS 19 TO 31. SOUTHWEST WINDS UP
TO 15 MPH WITH GUSTS TO AROUND 45 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 52 TO 62. SOUTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTH WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
MONDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 69. SOUTHWEST WINDS
UP TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH SHIFTING TO THE
SOUTHEAST WITH GUSTS TO AROUND 25 MPH AFTER MIDNIGHT.
TUESDAY
SUNNY. HIGHS 65 TO 73.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE AFTERNOON.
HIGHS 55 TO 63. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN AND SNOW. HEAVY SNOW
ACCUMULATIONS. LOWS 28 TO 34. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
BREEZY, COLDER. SNOW IN THE MORNING, THEN SNOW LIKELY
IN THE AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS 33 TO 43.
CHANCE OF SNOW 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.
LOWS IN THE MID 20S.
FRIDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS
36 TO 44.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
39 TO 49.
MTZ321-191000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE LOWER 50S. LOWS 20 TO 29. SOUTHWEST WINDS
UP TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS UP TO 10 MPH INCREASING TO 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTHWEST WINDS UP TO 15 MPH. GUSTS UP TO 30 MPH IN THE
EVENING.
MONDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS UP TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
TUESDAY
SUNNY. HIGHS IN THE LOWER 70S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE AFTERNOON.
HIGHS IN THE MID 60S. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN IN THE EVENING, THEN RAIN
AND SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS IN THE
LOWER 30S. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
BREEZY. MUCH COLDER. SNOW IN THE MORNING, THEN SNOW
LIKELY IN THE AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS IN
THE LOWER 40S. CHANCE OF SNOW 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.
LOWS IN THE MID 20S.
FRIDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS IN
THE MID 40S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS IN THE LOWER 20S.
SATURDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
IN THE UPPER 40S.
MTZ322-191000-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR. HIGHS 45 TO 55. LOWS
18 TO 32. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 54 TO 64. SOUTHWEST WINDS UP
TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 41. SOUTHWEST WINDS UP
TO 10 MPH. GUSTS UP TO 35 MPH DECREASING TO 25 MPH AFTER
MIDNIGHT.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 61 TO 71. LOWS
38 TO 44. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
TUESDAY
SUNNY. HIGHS 64 TO 74.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 46.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN LIKELY AND SNOW IN THE AFTERNOON. HIGHS 52 TO 62. CHANCE OF
PRECIPITATION 90 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN AND SNOW. HEAVY SNOW
ACCUMULATIONS. LOWS 28 TO 34. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
COLDER. SNOW IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS 33 TO 41. CHANCE OF
SNOW 90 PERCENT.
THURSDAY NIGHT
COLDER. MOSTLY CLOUDY. CHANCE OF SNOW IN THE
EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS 20 TO
26. CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS
36 TO 44.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS 20 TO 26.
SATURDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
39 TO 47.
MTZ323-191000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF SNOW. HIGHS IN THE UPPER 50S. LOWS 23 TO 34. SOUTH WINDS UP TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS UP TO 15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS AROUND 40. SOUTH
WINDS UP TO 15 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
BREEZY, COLDER. RAIN IN THE EVENING, THEN RAIN
AND SNOW AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY
BREEZY. MUCH COOLER. SNOW AND RAIN LIKELY IN THE
MORNING, THEN SNOW LIKELY IN THE AFTERNOON. HIGHS IN THE MID 40S.
CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE UPPER 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE UPPER 40S.
FRIDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW IN
THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN
THE UPPER 20S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.
MTZ324-191000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR. HIGHS IN THE UPPER 50S.
LOWS 21 TO 30. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS UP TO
15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTHWEST WINDS UP TO 15 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS UP TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE
AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION
80 PERCENT.
THURSDAY
BREEZY, COOLER. MOSTLY CLOUDY. SNOW AND RAIN LIKELY
IN THE MORNING, THEN CHANCE OF SNOW AND RAIN IN THE AFTERNOON.
LIGHT SNOW ACCUMULATIONS. HIGHS IN THE UPPER 40S. CHANCE OF
PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE UPPER 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
SNOW. HIGHS IN THE UPPER 40S. LOWS IN THE UPPER 20S.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF SNOW IN THE
AFTERNOON. HIGHS IN THE LOWER 50S.
MTZ325-191000-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR. HIGHS IN THE LOWER 50S.
LOWS 18 TO 31. SOUTH WINDS UP TO 20 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS IN THE LOWER 60S. SOUTH WINDS
5 TO 15 MPH.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTH WINDS 5 TO
15 MPH.
MONDAY
SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
5 TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
BREEZY. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN LIKELY IN THE
AFTERNOON. HIGHS 59 TO 65. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN IN THE EVENING, THEN RAIN AND
SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
COOLER. SNOW AND RAIN LIKELY IN THE MORNING, THEN
SNOW LIKELY IN THE AFTERNOON. LIGHT SNOW ACCUMULATIONS. HIGHS IN
THE MID 40S. CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
SNOW. HIGHS IN THE UPPER 40S. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF SNOW IN THE
AFTERNOON. HIGHS IN THE LOWER 50S.
MTZ326-191000-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. PATCHY FOG EARLY IN THE
MORNING. HIGHS IN THE MID 50S. LOWS 19 TO 29. SOUTHEAST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 60S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE UPPER
30S. SOUTH WINDS UP TO 10 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS
UP TO 10 MPH.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS IN THE MID 40S.
WEDNESDAY
COOLER. PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE MID
60S. CHANCE OF RAIN 50 PERCENT.
WEDNESDAY NIGHT
COLDER. RAIN LIKELY IN THE EVENING, THEN RAIN
AND SNOW AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
COOLER. SNOW AND RAIN IN THE MORNING, THEN SNOW
LIKELY AND CHANCE OF RAIN IN THE AFTERNOON. LIGHT SNOW
ACCUMULATIONS. HIGHS IN THE UPPER 40S. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS IN
THE UPPER 40S.
FRIDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW IN
THE EVENING, THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN
THE MID 20S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SNOW IN THE MORNING,
THEN SLIGHT CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS IN
THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 21 67 35 74 / 10 0 0 0
BOZEMAN MSU 23 65 37 72 / 10 0 0 0
MTZ330-191000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. MOSTLY CLEAR. HIGHS 35 TO 47.
LOWS 10 TO 28. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND
35 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 46 TO 58. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 29 TO 37. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
WARMER, SUNNY. HIGHS 53 TO 65. SOUTH WINDS UP TO 15 MPH
WITH GUSTS TO AROUND 30 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 42. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
SUNNY. HIGHS 56 TO 68.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 35 TO 43.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN RAIN SHOWERS, SNOW SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. LIGHT SNOW ACCUMULATIONS.
HIGHS 44 TO 56. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
COLDER. SNOW AND RAIN. HEAVY SNOW
ACCUMULATIONS. LOWS 26 TO 32. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
SNOW. HEAVY SNOW ACCUMULATIONS. HIGHS 32 TO 42.
CHANCE OF SNOW 90 PERCENT.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. A 50 PERCENT CHANCE
OF SNOW. LOWS 18 TO 24. HIGHS 34 TO 44.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.
LOWS 18 TO 24.
SATURDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
38 TO 48.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 13 58 25 64 / 0 0 0 0
MTZ327-191000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. PARTLY CLOUDY. HIGHS 41 TO 51.
LOWS 14 TO 27. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 51 TO 61. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY NIGHT
NOT AS COLD. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
WARMER. MOSTLY SUNNY. HIGHS 57 TO 67. SOUTHWEST WINDS
UP TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. GUSTS UP TO
30 MPH.
TUESDAY
SUNNY. HIGHS 60 TO 70.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 30S.
WEDNESDAY
PARTLY SUNNY WITH CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN CLOUDY WITH RAIN SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. MODERATE SNOW
ACCUMULATIONS. HIGHS 46 TO 56. CHANCE OF PRECIPITATION
90 PERCENT.
WEDNESDAY NIGHT
SNOW AND RAIN IN THE EVENING, THEN SNOW WITH
RAIN LIKELY AFTER MIDNIGHT. HEAVY SNOW ACCUMULATIONS. LOWS AROUND
30. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
SNOW IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON. MODERATE SNOW ACCUMULATIONS. HIGHS 34 TO 44. CHANCE OF
SNOW 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 20S.
CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS
36 TO 46.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE LOWER 20S. HIGHS 40 TO 50.
MTZ328-191000-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS 50 TO 56. LOWS
18 TO 30. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
WARMER, SUNNY. HIGHS 61 TO 67. SOUTH WINDS UP TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTH WINDS UP TO
15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
MONDAY AND MONDAY NIGHT
PARTLY CLOUDY. HIGHS 67 TO 73. LOWS IN
THE LOWER 40S. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 76.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
WEDNESDAY
COOLER. MOSTLY SUNNY WITH SLIGHT CHANCE OF RAIN IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. LIGHT SNOW
ACCUMULATIONS. HIGHS 57 TO 63. CHANCE OF PRECIPITATION
70 PERCENT.
WEDNESDAY NIGHT AND THURSDAY
COOLER. RAIN AND SNOW LIKELY.
HEAVY SNOW ACCUMULATIONS. LOWS IN THE MID 30S. HIGHS 43 TO 49.
CHANCE OF PRECIPITATION 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE MID 20S.
CHANCE OF SNOW 40 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
45 TO 51.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 20S.
SATURDAY
MOSTLY SUNNY. HIGHS 49 TO 55.
TEMPERATURE / PRECIPITATION
DILLON 23 66 35 73 / 0 0 0 0
MTZ329-191000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
1232 AM MDT SAT APR 18 2026
REST OF TONIGHT
NOT AS COOL. PARTLY CLOUDY. HIGHS 40 TO 48.
LOWS 16 TO 28. SOUTH WINDS UP TO 20 MPH.
SUNDAY
NOT AS COOL. SUNNY. HIGHS 51 TO 59. SOUTH WINDS 5 TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
SUNDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. LOWS IN THE MID 30S.
SOUTH WINDS 5 TO 15 MPH. GUSTS UP TO 35 MPH DECREASING TO 25 MPH
AFTER MIDNIGHT.
MONDAY
WARMER. MOSTLY SUNNY. HIGHS 58 TO 66. SOUTH WINDS UP TO
10 MPH SHIFTING TO THE SOUTHWEST WITH GUSTS TO AROUND 35 MPH IN
THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTH WINDS 5 TO
20 MPH WITH GUSTS TO AROUND 35 MPH.
TUESDAY
BREEZY, SUNNY. HIGHS 60 TO 68.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 36 TO 42.
WEDNESDAY
WINDY. PARTLY SUNNY. CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN RAIN SHOWERS, SNOW SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. LIGHT SNOW ACCUMULATIONS.
HIGHS 47 TO 55. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY NIGHT
SNOW AND RAIN LIKELY. HEAVY SNOW
ACCUMULATIONS. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
70 PERCENT.
THURSDAY
BREEZY. SNOW LIKELY. MODERATE SNOW ACCUMULATIONS.
HIGHS 36 TO 44. CHANCE OF SNOW 70 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 20S.
CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SNOW. HIGHS
37 TO 45.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. LOWS IN THE MID 20S. HIGHS 41 TO 49.
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