141
FPUS55 KMSO 200623
ZFPMSO
ZONE FORECAST PRODUCT
NATIONAL WEATHER SERVICE MISSOULA MT
1222 AM MDT SUN SEP 20 2026
MTZ001-202200-
KOOTENAI/CABINET REGION-
INCLUDING THE CITIES OF LIBBY AND EUREKA
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. HIGHS IN THE MID 70S TO LOWER 80S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S TO LOWER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S TO MID 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE 40S TO LOWER 50S.
FRIDAY
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S TO MID 40S.
SATURDAY
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
IN THE MID 50S TO LOWER 60S.
MTZ002-202200-
WEST GLACIER REGION-
INCLUDING THE CITY OF SWAN LAKE
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE MID 60S TO LOWER 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S TO LOWER 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S TO LOWER 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE 60S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S TO LOWER
50S.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE 60S TO LOWER 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS IN THE 40S.
SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE UPPER 40S TO MID 50S.
MTZ003-202200-
FLATHEAD/MISSION VALLEYS-
INCLUDING THE CITIES OF KALISPELL, POLSON, AND ST. IGNATIUS
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S TO LOWER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE 40S TO LOWER 50S.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS IN THE 40S.
SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 50S TO LOWER 60S.
MTZ004-202200-
LOWER CLARK FORK REGION-
INCLUDING THE CITIES OF NOXON, THOMPSON FALLS, AND SUPERIOR
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE 70S TO LOWER 80S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S TO LOWER 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
FRIDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE 40S.
SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 50S TO LOWER 60S.
MTZ005-202200-
MISSOULA/BITTERROOT VALLEYS-
INCLUDING THE CITIES OF HAMILTON AND DARBY
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S TO LOWER 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 40S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 40S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID TO UPPER 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID TO UPPER 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 40S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE MID TO UPPER 70S.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE LOWER TO MID 40S.
SATURDAY
PARTLY CLOUDY. COOLER. HIGHS IN THE LOWER TO MID 60S.
MTZ006-202200-
BITTERROOT/SAPPHIRE MOUNTAINS-
INCLUDING THE CITY OF SULA
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN
THE 60S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S TO MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID
40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A 20 PERCENT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE
UPPER 30S TO MID 40S.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S TO MID 60S.
MTZ007-202200-
BUTTE/BLACKFOOT REGION-
INCLUDING THE CITIES OF ANACONDA, DEER LODGE, AND DRUMMOND
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE
60S TO LOWER 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S TO MID 40S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID
40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID 40S.
SATURDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE 60S.
MTZ043-202200-
POTOMAC/SEELEY LAKE REGION-
INCLUDING THE CITIES OF EAST MISSOULA, SEELEY LAKE, AND CLINTON
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. AREAS OF FOG IN THE MORNING. HIGHS IN THE
UPPER 60S TO MID 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S TO LOWER 50S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER
50S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE UPPER 30S TO MID 40S.
SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 50S TO LOWER 60S.
IDZ009-202200-
WESTERN LEMHI COUNTY-
INCLUDING THE CITY OF SHOUP
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. HIGHS IN THE MID 60S TO LOWER 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE 40S TO LOWER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S TO LOWER 50S.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE MID 40S TO LOWER 50S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER
50S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S TO LOWER 80S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S TO MID
50S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE MID 40S TO LOWER 50S.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE 60S TO LOWER 70S.
IDZ010-202200-
EASTERN LEMHI COUNTY-
INCLUDING THE CITIES OF SALMON AND LEADORE
1222 AM MDT SUN SEP 20 2026
TODAY
MOSTLY SUNNY. AREAS OF FOG EARLY IN THE MORNING. HIGHS
IN THE MID 60S TO LOWER 70S.
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S TO MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
40S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER
50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE 40S TO LOWER 50S.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE 60S TO LOWER 70S.
IDZ005-202200-
NORTHERN CLEARWATER MOUNTAINS-
INCLUDING THE CITIES OF PIERCE AND ELK RIVER
1122 PM PDT SAT SEP 19 2026
TODAY
SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS IN THE 70S
TO LOWER 80S.
TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
UPPER 30S TO MID 40S.
MONDAY
SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE MID 70S
TO LOWER 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE 40S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 40S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S TO MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID
40S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE 40S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S TO MID 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 30S TO LOWER 40S.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S TO MID 60S.
IDZ006-202200-
SOUTHERN CLEARWATER MOUNTAINS-
INCLUDING THE CITIES OF POWELL, ELK CITY, AND DIXIE
1122 PM PDT SAT SEP 19 2026
TODAY
MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING. HIGHS
66 TO 81.
TONIGHT
MOSTLY CLEAR. LOWS 37 TO 52.
MONDAY
SUNNY. HIGHS 69 TO 84.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 54.
TUESDAY
PARTLY CLOUDY. HIGHS 66 TO 81.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 53.
WEDNESDAY
MOSTLY SUNNY. HIGHS 61 TO 76.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 50.
THURSDAY
PARTLY CLOUDY. HIGHS 66 TO 80.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 53.
FRIDAY
PARTLY CLOUDY. HIGHS 62 TO 76.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE MID 30S TO UPPER
40S.
SATURDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS 51 TO 65.
IDZ007-202200-
OROFINO/GRANGEVILLE REGION-
INCLUDING THE CITY OF KOOSKIA
1122 PM PDT SAT SEP 19 2026
TODAY
SUNNY. HIGHS 72 TO 85.
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO MID 50S.
MONDAY
SUNNY. HIGHS IN THE MID 70S TO UPPER 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S TO MID 50S.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE 70S TO LOWER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S TO MID 50S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE 60S TO UPPER 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S TO LOWER
50S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 70S TO LOWER 80S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S TO MID 50S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE 60S TO UPPER 70S.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE 40S TO LOWER 50S.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 50S TO UPPER 60S.
IDZ008-202200-
LOWER HELLS CANYON/SALMON RIVER REGION-
INCLUDING THE CITIES OF RIGGINS AND WHITE BIRD
1122 PM PDT SAT SEP 19 2026
TODAY
SUNNY. HIGHS IN THE 70S TO MID 80S.
TONIGHT
CLEAR. LOWS IN THE 50S. SOUTHEAST WINDS TO 15 MPH.
MONDAY
SUNNY. HIGHS IN THE 70S TO UPPER 80S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 50S TO LOWER 60S.
SOUTH WINDS TO 15 MPH.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S TO UPPER 80S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 50S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S TO MID 80S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S TO MID
50S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE MID 70S TO UPPER 80S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE 50S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 70S TO MID 80S.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE UPPER 40S TO MID 50S.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE 60S TO LOWER 70S.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page