961  
FPUS55 KTFX 151643  
ZFPTFX  
 
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
942 AM MST SUN DEC 15 2024  
 
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION  
ARE FOR THE REST OF TODAY, TONIGHT, AND MONDAY.  
 
MTZ301-152300-  
EAST GLACIER PARK REGION-  
INCLUDING EAST GLACIER PARK, KIOWA, BABB, SAINT MARY,  
MARIAS PASS, AND LOGAN PASS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF  
SNOW. NEAR STEADY TEMPERATURE IN THE MID 20S. WEST WINDS 20 TO  
30 MPH WITH GUSTS TO AROUND 50 MPH.    
TONIGHT
 
WINDY, COLDER. PARTLY CLOUDY. NEAR STEADY TEMPERATURE  
AROUND 20. SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO AROUND  
50 MPH.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW  
LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH. HIGHS  
20 TO 30. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF SNOW  
70 PERCENT.    
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS AROUND 15. SOUTHEAST  
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.  
CHANCE OF SNOW NEAR 100 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
20 TO 25. WEST WINDS 5 TO 15 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
VERY WINDY. MOSTLY CLOUDY WITH A  
50 PERCENT CHANCE OF SNOW. LOWS AROUND 20. HIGHS 30 TO 40.    
WEDNESDAY NIGHT
 
VERY WINDY. MOSTLY CLOUDY WITH A 50 PERCENT  
CHANCE OF SNOW. LOWS 25 TO 30.    
THURSDAY AND THURSDAY NIGHT
 
WINDY. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SNOW. HIGHS 30 TO 40. LOWS 25 TO 30.    
FRIDAY THROUGH SATURDAY
 
MOSTLY CLOUDY. HIGHS 35 TO 45. LOWS  
25 TO 35.  
 

 
 
MTZ307-152300-  
SOUTHERN ROCKY MOUNTAIN FRONT-  
INCLUDING ROGERS PASS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE  
OF SNOW. NEAR STEADY TEMPERATURE IN THE MID 20S. WEST WINDS 15 TO  
25 MPH WITH GUSTS TO AROUND 45 MPH.    
TONIGHT
 
BREEZY, COLDER. PARTLY CLOUDY IN THE EVENING THEN  
BECOMING MOSTLY CLOUDY. LOWS 10 TO 20. WEST WINDS 15 TO 25 MPH  
DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT. GUSTS UP TO 50 MPH.    
MONDAY
 
CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW IN THE  
AFTERNOON. SNOW ACCUMULATION UP TO 3 INCHES. HIGHS 20 TO 30.  
SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 15 TO 20. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW NEAR 100 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. SNOW LIKELY IN THE MORNING, THEN CHANCE  
OF SNOW IN THE AFTERNOON. HIGHS 20 TO 30. WEST WINDS UP TO  
10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY NIGHT THROUGH WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY  
WITH A 50 PERCENT CHANCE OF SNOW. LOWS 20 TO 30. HIGHS 30 TO 40.    
THURSDAY
 
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SNOW. HIGHS 30 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 30.  
HIGHS 35 TO 45.  
 

 
 
MTZ302-152300-  
NORTHERN HIGH PLAINS-  
INCLUDING BROWNING, HEART BUTTE, AND DUPUYER  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY, COLDER. MOSTLY CLOUDY. A 20 PERCENT  
CHANCE OF SNOW LATE IN THE MORNING. NEAR STEADY TEMPERATURE IN  
THE LOWER 30S. WEST WINDS 25 TO 35 MPH WITH GUSTS TO AROUND  
50 MPH.    
TONIGHT
 
WINDY, COLDER. MOSTLY CLEAR. LOWS 15 TO 20. WEST WINDS  
20 TO 30 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT. GUSTS UP  
TO 45 MPH.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE MORNING,  
THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS AROUND 30. SOUTHWEST  
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH IN THE AFTERNOON. CHANCE  
OF SNOW 50 PERCENT.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS 10 TO  
15. EAST WINDS UP TO 10 MPH SHIFTING TO THE NORTHEAST AFTER  
MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 20 TO 25. NORTH  
WINDS 5 TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
VERY WINDY. NOT AS COOL. MOSTLY  
CLOUDY WITH A 20 PERCENT CHANCE OF SNOW. LOWS 10 TO 15. HIGHS  
40 TO 45.    
WEDNESDAY NIGHT
 
VERY WINDY. NOT AS COLD. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF RAIN AND SNOW. LOWS 25 TO 30.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT THROUGH FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 25 TO  
30. HIGHS 45 TO 50.    
SATURDAY
 
MOSTLY CLOUDY. HIGHS AROUND 45.  
 

 
 
MTZ308-152300-  
SOUTHERN HIGH PLAINS-  
INCLUDING BYNUM, CHOTEAU, AND PENDROY  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY, COLDER. MOSTLY CLOUDY WITH A 20 PERCENT  
CHANCE OF SNOW. NEAR STEADY TEMPERATURE IN THE MID 30S. WEST  
WINDS 20 TO 30 MPH WITH GUSTS TO AROUND 45 MPH.    
TONIGHT
 
BREEZY, COLDER. MOSTLY CLEAR. LOWS 15 TO 25. WEST  
WINDS 15 TO 25 MPH BECOMING SOUTHWEST 5 TO 15 MPH AFTER MIDNIGHT.  
GUSTS UP TO 45 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
30 TO 35. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SNOW LIKELY IN THE EVENING, THEN  
CHANCE OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS  
15 TO 20. EAST WINDS UP TO 5 MPH SHIFTING TO THE NORTH AFTER  
MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30. NORTH  
WINDS UP TO 10 MPH SHIFTING TO THE NORTHEAST IN THE AFTERNOON.  
CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
WINDY. NOT AS COOL. MOSTLY CLOUDY  
WITH A 20 PERCENT CHANCE OF SNOW. LOWS 10 TO 20. HIGHS 45 TO 50.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF RAIN AND SNOW. LOWS 30 TO 35.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 45 TO 50.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 35.  
HIGHS 45 TO 50.  
 

 
 
MTZ303-152300-  
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-  
INCLUDING CUT BANK, ETHRIDGE, AND SANTA RITA  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY, COLDER. MOSTLY CLOUDY. HIGHS 35 TO 40.  
WEST WINDS 25 TO 35 MPH.    
TONIGHT
 
BREEZY, COLDER. MOSTLY CLEAR. LOWS AROUND 15. WEST  
WINDS 15 TO 25 MPH DECREASING TO 5 TO 15 MPH AFTER MIDNIGHT.    
MONDAY
 
COLDER. PARTLY CLOUDY IN THE MORNING, THEN MOSTLY  
CLOUDY WITH A 20 PERCENT CHANCE OF SNOW IN THE AFTERNOON. HIGHS  
AROUND 30. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS 10 TO  
15. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN  
THE MORNING. HIGHS 15 TO 20. NORTH WINDS 5 TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
WINDY. NOT AS COOL. MOSTLY CLOUDY.  
LOWS 5 TO 10. HIGHS 40 TO 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS AROUND  
25.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25.  
HIGHS 40 TO 45.  
 

 
TEMPERATURE / PRECIPITATION  
 
CUT BANK 37 15 30 / 0 0 20  
 

 
 
MTZ304-152300-  
EASTERN TOOLE AND LIBERTY-  
INCLUDING DEVON, SHELBY, CHESTER, GALATA, JOPLIN, LOTHAIR,  
AND WHITLASH  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY. MOSTLY CLOUDY. HIGHS 35 TO 40. WEST  
WINDS 10 TO 15 MPH INCREASING TO 15 TO 25 MPH IN THE AFTERNOON.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS 10 TO 15. WEST WINDS 5 TO  
15 MPH.    
MONDAY
 
COLDER. PARTLY CLOUDY IN THE MORNING, THEN MOSTLY  
CLOUDY WITH A 20 PERCENT CHANCE OF SNOW IN THE AFTERNOON. HIGHS  
25 TO 30. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE SOUTH IN  
THE AFTERNOON.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS 10 TO  
15. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 15 TO 20. NORTH  
WINDS UP TO 10 MPH. CHANCE OF SNOW 40 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
BREEZY. NOT AS COOL. MOSTLY  
CLOUDY. LOWS AROUND 5 ABOVE. HIGHS 35 TO 40.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS 20 TO  
25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 15 TO 20.  
HIGHS 35 TO 40.  
 

 
 
MTZ305-152300-  
HILL COUNTY-  
INCLUDING HAVRE  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW LATE  
IN THE MORNING. HIGHS 35 TO 40. WEST WINDS 10 TO 20 MPH.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 10 TO 15. WEST WINDS 5 TO  
15 MPH.    
MONDAY
 
COLDER. SUNNY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. HIGHS 25 TO 30. WEST WINDS UP TO 5 MPH.    
MONDAY NIGHT
 
CLOUDY. CHANCE OF SNOW IN THE EVENING, THEN SNOW  
LIKELY AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS AROUND  
10 ABOVE. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF SNOW  
70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 15 TO 20. NORTH  
WINDS 5 TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
NOT AS COOL. MOSTLY CLOUDY. LOWS  
ZERO TO 5 ABOVE ZERO. HIGHS 35 TO 40.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF RAIN AND SNOW. LOWS 15 TO 20.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 30 TO 35.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 10 TO 20.  
HIGHS 30 TO 35.  
 

 
TEMPERATURE / PRECIPITATION  
 
HAVRE 39 13 27 / 10 0 0  
 

 
 
MTZ306-152300-  
NORTHERN BLAINE COUNTY-  
INCLUDING CHINOOK, ZURICH, HARLEM, HOGELAND, AND FORT BELKNAP  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY. MOSTLY CLOUDY. HIGHS 35 TO 40. WEST  
WINDS 10 TO 15 MPH INCREASING TO 15 TO 25 MPH IN THE AFTERNOON.    
TONIGHT
 
BREEZY, COLDER. MOSTLY CLOUDY IN THE EVENING THEN  
CLEARING. LOWS AROUND 10. WEST WINDS 15 TO 25 MPH DECREASING TO  
10 TO 15 MPH AFTER MIDNIGHT.    
MONDAY
 
COLDER. PARTLY CLOUDY. HIGHS 20 TO 25. NORTHWEST WINDS  
UP TO 10 MPH.    
MONDAY NIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.  
LOWS 5 TO 10. EAST WINDS UP TO 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 15 TO 20. NORTHEAST  
WINDS 5 TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND ZERO.    
WEDNESDAY
 
NOT AS COLD. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SNOW. HIGHS 30 TO 35.    
WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF RAIN AND SNOW. LOWS 10 TO 15.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS 30 TO 35.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 10 TO 15.  
HIGHS 25 TO 30.  
 

 
 
MTZ309-152300-  
EASTERN PONDERA AND EASTERN TETON-  
INCLUDING BRADY, CONRAD, AND LEDGER  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. MOSTLY CLOUDY. A 20 PERCENT  
CHANCE OF SNOW LATE IN THE MORNING. HIGHS AROUND 40. WEST WINDS  
15 TO 25 MPH.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS AROUND 15. SOUTHWEST WINDS  
5 TO 15 MPH.    
MONDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW IN THE  
MORNING, THEN MOSTLY CLOUDY WITH CHANCE OF SNOW IN THE AFTERNOON.  
HIGHS IN THE MID 30S. SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW  
50 PERCENT.    
MONDAY NIGHT
 
CLOUDY. CHANCE OF SNOW IN THE EVENING, THEN SNOW  
LIKELY AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS AROUND 15.  
NORTHEAST WINDS UP TO 5 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. A 40 PERCENT CHANCE OF SNOW IN  
THE MORNING. HIGHS 20 TO 25. NORTH WINDS UP TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
WINDY. NOT AS COOL. MOSTLY CLOUDY.  
LOWS 5 TO 10. HIGHS AROUND 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS AROUND  
25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25.  
HIGHS 45 TO 50.  
 

 
 
MTZ310-152300-  
WESTERN AND CENTRAL CHOUTEAU COUNTY-  
INCLUDING FLOWEREE, CARTER, AND FORT BENTON  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER, CLOUDY. CHANCE OF SNOW AND RAIN  
LATE IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. HIGHS  
AROUND 40. WEST WINDS 10 TO 15 MPH INCREASING TO 15 TO 25 MPH IN  
THE AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS 15 TO 20. WEST WINDS 5 TO  
15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.    
MONDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 30 TO 35.  
SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS 15 TO  
20. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 20 TO 25. NORTH  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
BREEZY. NOT AS COOL. MOSTLY  
CLOUDY. LOWS 10 TO 15. HIGHS 40 TO 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS 25 TO  
30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25.  
HIGHS 40 TO 45.  
 

 
 
MTZ311-152300-  
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-  
INCLUDING ROCKY BOY  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY. MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN  
LATE IN THE MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON.  
HIGHS 35 TO 40. WEST WINDS 10 TO 15 MPH INCREASING TO 15 TO  
25 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.    
TONIGHT
 
BREEZY, COLDER. MOSTLY CLOUDY IN THE EVENING THEN  
CLEARING. LOWS 15 TO 20. WEST WINDS 15 TO 25 MPH DECREASING TO  
10 TO 15 MPH AFTER MIDNIGHT.    
MONDAY
 
COLDER. PARTLY CLOUDY IN THE MORNING THEN BECOMING  
MOSTLY CLOUDY. HIGHS AROUND 30. WEST WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS 15 TO  
20. EAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
20 TO 25. NORTH WINDS UP TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
NOT AS COOL. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SNOW. LOWS 5 TO 10. HIGHS 35 TO 40.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF RAIN AND SNOW. LOWS 20 TO 25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 15 TO 25.  
HIGHS 35 TO 40.  
 

 
 
MTZ312-152300-  
CASCADE COUNTY BELOW 5000FT-  
INCLUDING GREAT FALLS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. MOSTLY CLOUDY WITH A 50 PERCENT  
CHANCE OF SNOW. HIGHS 35 TO 40. WEST WINDS 15 TO 25 MPH.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS AROUND 20. SOUTHWEST WINDS  
10 TO 20 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
IN THE MID 30S. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS  
AROUND 20. EAST WINDS UP TO 10 MPH SHIFTING TO THE NORTH AFTER  
MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30. NORTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
WINDY. NOT AS COOL. MOSTLY CLOUDY.  
LOWS 10 TO 20. HIGHS AROUND 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS AROUND  
30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 45 TO 50.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 30.  
HIGHS 45 TO 50.  
 

 
TEMPERATURE / PRECIPITATION  
 
GREAT FALLS ARPT 40 20 35 / 50 0 30  
 

 
 
MTZ313-152300-  
JUDITH BASIN COUNTY AND JUDITH GAP-  
INCLUDING RAYNESFORD, GEYSER, STANFORD, WINDHAM, BENCHLAND,  
HOBSON, AND MOCCASIN  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY, COLDER. SNOW LATE IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION UP TO  
1 INCH. NEAR STEADY TEMPERATURE IN THE MID 30S. WEST WINDS 20 TO  
30 MPH. CHANCE OF SNOW 90 PERCENT.    
TONIGHT
 
BREEZY, COLDER. MOSTLY CLEAR. LOWS 15 TO 20. WEST  
WINDS 15 TO 25 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.    
MONDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW IN THE  
MORNING, THEN MOSTLY CLOUDY WITH CHANCE OF SNOW IN THE AFTERNOON.  
HIGHS IN THE MID 30S. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF  
SNOW 50 PERCENT.    
MONDAY NIGHT
 
SNOW LIKELY. LIGHT SNOW ACCUMULATIONS. LOWS  
AROUND 20. SOUTHEAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
AROUND 30. NORTHWEST WINDS 5 TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
WINDY. NOT AS COOL. MOSTLY CLOUDY.  
LOWS 10 TO 15. HIGHS AROUND 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS 25 TO  
30.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS AROUND 45.    
THURSDAY NIGHT THROUGH FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 25 TO  
30. HIGHS AROUND 50.    
SATURDAY
 
PARTLY CLOUDY. HIGHS AROUND 50.  
 

 
 
MTZ314-152300-  
FERGUS COUNTY BELOW 4500FT-  
INCLUDING HILGER AND LEWISTOWN  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
WINDY, COLDER. CLOUDY WITH A 50 PERCENT CHANCE  
OF SNOW AND RAIN. HIGHS 35 TO 40. WEST WINDS 10 TO 20 MPH  
INCREASING TO 20 TO 30 MPH IN THE AFTERNOON.    
TONIGHT
 
BREEZY, COLDER. PARTLY CLOUDY. LOWS AROUND 20. WEST  
WINDS 15 TO 25 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.    
MONDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. HIGHS IN THE MID 30S. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
CLOUDY. CHANCE OF SNOW IN THE EVENING, THEN SNOW  
LIKELY AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS AROUND 20.  
EAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
25 TO 30. NORTH WINDS UP TO 10 MPH.    
TUESDAY NIGHT AND WEDNESDAY
 
MOSTLY CLOUDY. LOWS 10 TO 15.  
HIGHS 35 TO 45.    
WEDNESDAY NIGHT
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. LOWS 25 TO  
30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25.  
HIGHS 40 TO 45.  
 

 
TEMPERATURE / PRECIPITATION  
 
LEWISTOWN 37 15 34 / 80 0 20  
 

 
 
MTZ315-152300-  
UPPER BLACKFOOT AND MACDONALD PASS-  
INCLUDING MARYSVILLE, LINCOLN, FLESHER PASS, AND MACDONALD PASS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. MOSTLY CLOUDY. CHANCE OF SNOW  
LATE IN THE MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON.  
NEAR STEADY TEMPERATURE IN THE UPPER 20S. WEST WINDS 15 TO 25 MPH  
WITH GUSTS TO AROUND 40 MPH. CHANCE OF SNOW 50 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 15 TO 20. WEST WINDS 5 TO  
15 MPH WITH GUSTS TO AROUND 35 MPH.    
MONDAY
 
SNOW LIKELY IN THE MORNING, THEN SNOW IN THE AFTERNOON.  
SNOW ACCUMULATION UP TO 2 INCHES. HIGHS 25 TO 30. SOUTH WINDS UP  
TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 20 TO 25. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
25 TO 35. WEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT THROUGH WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY  
WITH A 20 PERCENT CHANCE OF SNOW. LOWS 20 TO 30. HIGHS 35 TO 40.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 30.  
HIGHS 35 TO 45.  
 

 
 
MTZ316-152300-  
GATES OF THE MOUNTAINS-  
INCLUDING CANYON CREEK, WOLF CREEK, AND CRAIG  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. MOSTLY CLOUDY. CHANCE OF SNOW  
LATE IN THE MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON.  
NEAR STEADY TEMPERATURE IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH  
INCREASING TO 15 TO 25 MPH IN THE AFTERNOON. CHANCE OF SNOW  
50 PERCENT.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS 20 TO 25. SOUTHWEST WINDS  
5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.    
MONDAY
 
CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW LIKELY  
IN THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH. HIGHS 30 TO 35.  
SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SNOW LIKELY IN THE EVENING, THEN  
CHANCE OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS  
20 TO 25. SOUTH WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 35. NORTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT AND WEDNESDAY
 
BREEZY. NOT AS COOL. MOSTLY  
CLOUDY. LOWS 20 TO 25. HIGHS 40 TO 45.    
WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SNOW. LOWS AROUND 30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 35.  
HIGHS 40 TO 45.  
 

 
 
MTZ317-152300-  
LITTLE BELT AND HIGHWOOD MOUNTAINS-  
INCLUDING MONARCH, NEIHART, AND KINGS HILL PASS  
942 AM MST SUN DEC 15 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS  
AFTERNOON...  
   
REST OF TODAY
 
BREEZY. SNOW LATE IN THE MORNING, THEN CHANCE OF  
SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION UP TO 2 INCHES. NEAR  
STEADY TEMPERATURE IN THE UPPER 20S. WEST WINDS 15 TO 25 MPH.  
CHANCE OF SNOW 90 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 10 TO 20. WEST WINDS 10 TO  
20 MPH WITH GUSTS TO AROUND 35 MPH.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW  
LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO 3 INCHES. HIGHS  
25 TO 30. SOUTHWEST WINDS 5 TO 10 MPH. CHANCE OF SNOW 70 PERCENT.   
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS AROUND 20. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
25 TO 30. WEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.  
LOWS 15 TO 20.    
WEDNESDAY
 
WINDY. NOT AS COLD. MOSTLY CLOUDY. HIGHS 35 TO 40.    
WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SNOW. LOWS 25 TO 30.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 25 TO  
30. HIGHS 40 TO 45.    
SATURDAY
 
PARTLY CLOUDY. HIGHS 40 TO 50.  
 

 
 
MTZ318-152300-  
SNOWY AND JUDITH MOUNTAINS-  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. SNOW LATE IN THE MORNING, THEN  
SNOW LIKELY IN THE AFTERNOON. NEW SNOW ACCUMULATION OF 1 TO  
4 INCHES. NEAR STEADY TEMPERATURE IN THE LOWER 30S. NORTHWEST  
WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 40 MPH. CHANCE OF SNOW  
90 PERCENT.    
TONIGHT
 
BREEZY, COLDER. PARTLY CLOUDY. LOWS 15 TO 20. WEST  
WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 40 MPH.    
MONDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
40 PERCENT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30.  
SOUTHWEST WINDS 5 TO 10 MPH.    
MONDAY NIGHT
 
SNOW LIKELY. MODERATE SNOW ACCUMULATIONS. LOWS  
AROUND 20. SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
25 TO 30. NORTHWEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW.  
LOWS AROUND 15.    
WEDNESDAY AND WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY. HIGHS  
35 TO 45. LOWS 25 TO 30.    
THURSDAY AND THURSDAY NIGHT
 
BREEZY. PARTLY CLOUDY. HIGHS 35 TO  
40. LOWS 20 TO 25.    
FRIDAY THROUGH SATURDAY
 
MOSTLY CLOUDY. HIGHS 40 TO 50. LOWS  
25 TO 30.  
 

 
 
MTZ319-152300-  
HELENA VALLEY-  
INCLUDING HELENA  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
COLDER. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SNOW. HIGHS 35 TO 40. WEST WINDS 10 TO 20 MPH.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 15 TO 20. SOUTHWEST WINDS  
5 TO 15 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.    
MONDAY
 
CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW LIKELY  
IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS 30 TO 35.  
SOUTHEAST WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
MONDAY NIGHT
 
CLOUDY. SNOW LIKELY IN THE EVENING, THEN CHANCE  
OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 20 TO 25.  
SOUTHEAST WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER  
MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS AROUND 35.  
NORTHWEST WINDS UP TO 5 MPH. CHANCE OF SNOW 40 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. HIGHS  
40 TO 45. LOWS 25 TO 30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS AROUND 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS AROUND 25.  
HIGHS AROUND 45.  
 

 
TEMPERATURE / PRECIPITATION  
 
HELENA 39 21 33 / 20 0 60  
 

 
 
MTZ320-152300-  
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-  
INCLUDING TRIDENT, MAUDLOW, BATTLE RIDGE PASS, BOZEMAN PASS,  
AND DEEP CREEK PASS  
942 AM MST SUN DEC 15 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS  
AFTERNOON...  
   
REST OF TODAY
 
MOSTLY CLOUDY. SNOW LATE IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION OF 1 TO  
4 INCHES. NEAR STEADY TEMPERATURE IN THE UPPER 20S. WEST WINDS  
10 TO 20 MPH WITH GUSTS TO AROUND 40 MPH. CHANCE OF SNOW  
90 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS AROUND 15. SOUTHWEST WINDS  
5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW  
LIKELY IN THE AFTERNOON. SNOW ACCUMULATION OF 2 TO 5 INCHES.  
HIGHS 25 TO 30. SOUTH WINDS 5 TO 10 MPH. CHANCE OF SNOW  
70 PERCENT.    
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. HEAVY SNOW ACCUMULATIONS. LOWS 20 TO 25. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30. WEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 20.    
WEDNESDAY
 
BREEZY. NOT AS COLD. MOSTLY CLOUDY. HIGHS 30 TO 40.    
WEDNESDAY NIGHT
 
BREEZY. MOSTLY CLOUDY WITH A 20 PERCENT CHANCE  
OF SNOW. LOWS AROUND 25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 30 TO 40.    
THURSDAY NIGHT THROUGH FRIDAY NIGHT
 
MOSTLY CLOUDY. LOWS 25 TO  
30. HIGHS 35 TO 40.    
SATURDAY
 
PARTLY CLOUDY. HIGHS 35 TO 45.  
 

 
 
MTZ321-152300-  
MEAGHER COUNTY VALLEYS-  
INCLUDING MARTINSDALE, CHECKERBOARD, RINGLING,  
AND WHITE SULPHUR SPRINGS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
BREEZY, COLDER. SNOW LATE IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION UP TO  
1 INCH. HIGHS IN THE MID 30S. WEST WINDS 15 TO 25 MPH WITH GUSTS  
TO AROUND 40 MPH. CHANCE OF SNOW 90 PERCENT.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS 10 TO 15. SOUTHWEST WINDS  
5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW  
LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO 2 INCHES. HIGHS  
AROUND 30. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF SNOW  
70 PERCENT.    
MONDAY NIGHT
 
SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS AROUND 20. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 90 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 30 TO 35. WEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY. HIGHS  
35 TO 40. LOWS 20 TO 25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS AROUND 40.    
THURSDAY NIGHT AND FRIDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25. HIGHS  
40 TO 45.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS 25 TO 30.    
SATURDAY
 
MOSTLY CLOUDY. HIGHS AROUND 45.  
 

 
 
MTZ322-152300-  
ELKHORN AND BOULDER MOUNTAINS-  
INCLUDING MONTANA CITY, CLANCY, BOULDER, CORBIN, WICKES,  
ELK PARK PASS, AND HOMESTAKE PASS  
942 AM MST SUN DEC 15 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS  
MORNING...  
   
REST OF TODAY
 
MOSTLY CLOUDY. CHANCE OF SNOW LATE IN THE  
MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON. NEAR STEADY  
TEMPERATURE IN THE UPPER 20S. WEST WINDS 10 TO 20 MPH WITH GUSTS  
TO AROUND 35 MPH. CHANCE OF SNOW 50 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 10 TO 20. SOUTHWEST WINDS  
5 TO 15 MPH.    
MONDAY
 
CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW LIKELY  
IN THE AFTERNOON. SNOW ACCUMULATION UP TO 2 INCHES. HIGHS 25 TO  
30. SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SNOW LIKELY IN THE EVENING, THEN  
CHANCE OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS  
AROUND 20. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF SNOW  
70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 35. WEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 40 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 20 TO 25.    
WEDNESDAY
 
BREEZY. MOSTLY CLOUDY. HIGHS 30 TO 40.    
WEDNESDAY NIGHT AND THURSDAY
 
BREEZY. PARTLY CLOUDY. LOWS 20 TO  
25. HIGHS 35 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 30.  
HIGHS 35 TO 45.  
 

 
 
MTZ323-152300-  
CANYON FERRY AREA-  
INCLUDING TOSTON, TOWNSEND, AND WINSTON  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
COLDER. MOSTLY CLOUDY WITH A 50 PERCENT CHANCE  
OF SNOW. HIGHS 35 TO 40. NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP  
TO 30 MPH IN THE AFTERNOON.    
TONIGHT
 
COLDER. MOSTLY CLEAR. LOWS 15 TO 20. WEST WINDS 5 TO  
10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY
 
CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS 30 TO  
35. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
CLOUDY. SNOW LIKELY IN THE EVENING, THEN CHANCE  
OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 20 TO 25.  
SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS AROUND 35. WEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 20 TO 25.    
WEDNESDAY AND WEDNESDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. HIGHS  
AROUND 40. LOWS 20 TO 30.    
THURSDAY
 
PARTLY CLOUDY. HIGHS AROUND 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 25 TO 30.  
HIGHS 40 TO 45.  
 

 
 
MTZ324-152300-  
MISSOURI HEADWATERS-  
INCLUDING HARRISON, THREE FORKS, WILLOW CREEK, PONY,  
AND WHITEHALL  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
COLDER. MOSTLY CLOUDY. CHANCE OF SNOW LATE IN  
THE MORNING, THEN SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS  
35 TO 40. WEST WINDS 10 TO 20 MPH. CHANCE OF SNOW 50 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 15 TO 20. SOUTHWEST WINDS  
5 TO 15 MPH.    
MONDAY
 
CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS 30 TO  
35. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.  
LOWS 20 TO 25. SOUTHWEST WINDS UP TO 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN THE  
MORNING. HIGHS 35 TO 40. WEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 20.    
WEDNESDAY
 
BREEZY. MOSTLY CLOUDY. HIGHS 40 TO 45.    
WEDNESDAY NIGHT AND THURSDAY
 
BREEZY. PARTLY CLOUDY. LOWS  
AROUND 25. HIGHS 40 TO 45.    
THURSDAY NIGHT AND FRIDAY
 
MOSTLY CLOUDY. LOWS AROUND 25. HIGHS  
AROUND 45.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS 25 TO 30.    
SATURDAY
 
MOSTLY CLOUDY. HIGHS AROUND 45.  
 

 
 
MTZ325-152300-  
MADISON RIVER VALLEY-  
INCLUDING CAMERON, ENNIS, JEFFERS, MCALLISTER, AND NORRIS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
COLDER. SNOW LIKELY LATE IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION AROUND  
1 INCH. HIGHS 30 TO 35. WEST WINDS 10 TO 20 MPH. CHANCE OF SNOW  
70 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 15 TO 20. SOUTH WINDS  
10 TO 15 MPH. GUSTS UP TO 30 MPH AFTER MIDNIGHT.    
MONDAY
 
BREEZY, CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SNOW LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH.  
HIGHS 30 TO 35. SOUTH WINDS 15 TO 25 MPH. CHANCE OF SNOW  
70 PERCENT.    
MONDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. SNOW LIKELY IN THE  
EVENING, THEN CHANCE OF SNOW AFTER MIDNIGHT. LIGHT SNOW  
ACCUMULATIONS. LOWS 20 TO 25. SOUTH WINDS 15 TO 25 MPH DECREASING  
TO 10 TO 15 MPH AFTER MIDNIGHT. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 35 TO 40. SOUTHWEST  
WINDS 5 TO 15 MPH. CHANCE OF SNOW 40 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 20 TO 25.    
WEDNESDAY AND WEDNESDAY NIGHT
 
WINDY. MOSTLY CLOUDY. HIGHS  
AROUND 40. LOWS 25 TO 30.    
THURSDAY
 
BREEZY. PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT AND FRIDAY
 
BREEZY. MOSTLY CLOUDY. LOWS 25 TO  
30. HIGHS 45 TO 50.    
FRIDAY NIGHT AND SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 30. HIGHS  
45 TO 50.  
 

 
 
MTZ326-152300-  
GALLATIN VALLEY-  
INCLUDING BOZEMAN AND GALLATIN GATEWAY  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
COLDER. SNOW LIKELY LATE IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. NEW SNOW ACCUMULATION UP TO  
2 INCHES. HIGHS IN THE MID 30S. WEST WINDS 5 TO 15 MPH. CHANCE OF  
SNOW 70 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS AROUND 15. SOUTHWEST WINDS  
5 TO 15 MPH SHIFTING TO THE SOUTH 5 TO 10 MPH AFTER MIDNIGHT.    
MONDAY
 
CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS 30 TO  
35. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
CLOUDY. SNOW LIKELY IN THE EVENING, THEN CHANCE  
OF SNOW AFTER MIDNIGHT. LIGHT SNOW ACCUMULATIONS. LOWS 20 TO 25.  
SOUTH WINDS UP TO 10 MPH. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS AROUND 35.  
SOUTHWEST WINDS UP TO 5 MPH. CHANCE OF SNOW 40 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. HIGHS  
AROUND 40. LOWS 20 TO 25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 40 TO 45.    
THURSDAY NIGHT AND FRIDAY
 
MOSTLY CLOUDY. LOWS AROUND 25. HIGHS  
AROUND 45.    
FRIDAY NIGHT AND SATURDAY
 
PARTLY CLOUDY. LOWS 25 TO 30. HIGHS  
AROUND 45.  
 

 
TEMPERATURE / PRECIPITATION  
 
BOZEMAN AIRPORT 37 13 32 / 70 0 50  
BOZEMAN MSU 34 16 34 / 80 0 60  
 

 
 
MTZ330-152300-  
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-  
INCLUDING BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,  
AND RAYNOLDS PASS  
942 AM MST SUN DEC 15 2024  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS  
AFTERNOON...  
   
REST OF TODAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.  
NEAR STEADY TEMPERATURE IN THE LOWER 20S. WEST WINDS 10 TO  
15 MPH.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 5 TO 15. SOUTHWEST WINDS  
5 TO 15 MPH.    
MONDAY
 
SNOW LIKELY IN THE MORNING, THEN SNOW IN THE AFTERNOON.  
SNOW ACCUMULATION OF 1 TO 4 INCHES. HIGHS 20 TO 30. SOUTH WINDS  
10 TO 20 MPH. CHANCE OF SNOW 90 PERCENT. WIND CHILL READINGS  
5 BELOW TO 15 BELOW ZERO IN THE MORNING.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SNOW LIKELY IN THE EVENING, THEN  
CHANCE OF SNOW AFTER MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS  
15 TO 20. SOUTH WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE  
EVENING. CHANCE OF SNOW 70 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. HIGHS  
25 TO 35. LOWS 15 TO 25.    
FRIDAY
 
MOSTLY CLOUDY. HIGHS 30 TO 40.    
FRIDAY NIGHT AND SATURDAY
 
PARTLY CLOUDY. LOWS 20 TO 30. HIGHS  
30 TO 40.  
 

 
TEMPERATURE / PRECIPITATION  
 
WEST YELLOWSTONE 29 5 25 / 40 20 90  
 

 
 
MTZ327-152300-  
NORTHWEST BEAVERHEAD COUNTY-  
INCLUDING DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,  
AND CHIEF JOSEPH PASS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.  
HIGHS 20 TO 30. WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND  
30 MPH.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 5 TO 10. SOUTHWEST WINDS  
UP TO 10 MPH.    
MONDAY
 
SNOW LIKELY IN THE MORNING, THEN SNOW IN THE AFTERNOON.  
SNOW ACCUMULATION OF 3 TO 6 INCHES. HIGHS 25 TO 30. SOUTH WINDS  
5 TO 15 MPH. CHANCE OF SNOW 90 PERCENT.    
MONDAY NIGHT
 
MOSTLY CLOUDY. SNOW LIKELY IN THE EVENING, THEN  
CHANCE OF SNOW AFTER MIDNIGHT. MODERATE SNOW ACCUMULATIONS. LOWS  
15 TO 20. SOUTHWEST WINDS 5 TO 10 MPH. CHANCE OF SNOW 70 PERCENT.   
TUESDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
SLIGHT CHANCE OF SNOW IN THE AFTERNOON. HIGHS 25 TO 30. WEST  
WINDS UP TO 10 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
MOSTLY CLOUDY. HIGHS 30 TO 40.  
LOWS 15 TO 20.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 30 TO 40.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 15 TO 25.  
HIGHS 35 TO 40.  
 

 
 
MTZ328-152300-  
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-  
INCLUDING BANNACK, DILLON, GLEN, AND WATERLOO  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW LATE IN THE  
MORNING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW IN THE  
AFTERNOON. HIGHS 30 TO 35. WEST WINDS 10 TO 15 MPH. CHANCE OF  
SNOW 50 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 10 TO 15. SOUTHWEST WINDS  
5 TO 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HIGHS  
30 TO 35. SOUTH WINDS 5 TO 15 MPH.    
MONDAY NIGHT
 
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,  
THEN SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. LOWS 15 TO 20. SOUTH  
WINDS 5 TO 15 MPH. CHANCE OF SNOW 50 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN THE  
MORNING. HIGHS 30 TO 35. SOUTHWEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
MOSTLY CLOUDY. HIGHS 35 TO 40.  
LOWS 20 TO 25.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 35 TO 45.    
THURSDAY NIGHT THROUGH SATURDAY
 
MOSTLY CLOUDY. LOWS 20 TO 25.  
HIGHS 40 TO 45.  
 

 
TEMPERATURE / PRECIPITATION  
 
DILLON 34 14 33 / 20 0 30  
 

 
 
MTZ329-152300-  
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-  
INCLUDING MONIDA PASS  
942 AM MST SUN DEC 15 2024  
   
REST OF TODAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW LATE IN THE  
MORNING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW IN THE  
AFTERNOON. HIGHS 25 TO 30. WEST WINDS 10 TO 15 MPH. CHANCE OF  
SNOW 50 PERCENT.    
TONIGHT
 
COLDER. PARTLY CLOUDY. LOWS 5 TO 15. SOUTHWEST WINDS  
5 TO 15 MPH.    
MONDAY
 
BREEZY. MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING,  
THEN SNOW LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO  
1 INCH. HIGHS 20 TO 30. SOUTH WINDS 10 TO 15 MPH INCREASING TO  
15 TO 25 MPH IN THE AFTERNOON. CHANCE OF SNOW 70 PERCENT.    
MONDAY NIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW.  
LOWS 15 TO 20. SOUTH WINDS 5 TO 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN THE  
MORNING. HIGHS 25 TO 30. SOUTHWEST WINDS UP TO 10 MPH.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 15 TO 20.    
WEDNESDAY AND WEDNESDAY NIGHT
 
BREEZY. MOSTLY CLOUDY. HIGHS  
25 TO 35. LOWS 15 TO 20.    
THURSDAY
 
PARTLY CLOUDY. HIGHS 30 TO 35.    
THURSDAY NIGHT
 
MOSTLY CLOUDY. LOWS 20 TO 25.    
FRIDAY THROUGH SATURDAY
 
PARTLY CLOUDY. HIGHS 35 TO 40. LOWS  
20 TO 25.  
 

 
 
HTTP://WWW.WEATHER.GOV/GREATFALLS  
HTTPS://WWW.TWITTER.COM/NWSGREATFALLS  
HTTPS://WWW.FACEBOOK.COM/NWSGREATFALLS  
 
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