Zone Forecast Product
Issued by NWS Great Falls, MT

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
391
FPUS55 KTFX 220206
ZFPTFX

Zone Forecast Product for Central and Southwest Montana
National Weather Service Great Falls MT
806 PM MDT Thu Aug 21 2025

Spot temperatures and probabilities of measurable precipitation
are for the rest of tonight, Friday, Friday night, and Saturday.


MTZ301-221000-
East Glacier Park Region-
Including East Glacier Park, Kiowa, Babb, Saint Mary,
Marias Pass, and Logan Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 40 to 45. Northeast winds
5 to 15 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 60 to
70. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
5 to 15 mph.
.SATURDAY...Sunny. Highs 65 to 75. East winds 5 to 15 mph.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY...Sunny. Highs 70 to 75.
.SUNDAY NIGHT...Partly cloudy. Lows 45 to 50.
.MONDAY...Sunny. Highs 70 to 80.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 50 to
55. Highs 70 to 80.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy. Highs 65 to 75. Lows
50 to 55.

$$

MTZ307-221000-
Southern Rocky Mountain Front-
Including Rogers Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Colder. Mostly clear. Lows 40 to 50. Northeast
winds 5 to 15 mph.
.FRIDAY...Sunny. Highs 60 to 70. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 40 to 45. East winds up to
10 mph.
.SATURDAY...Sunny. Highs 65 to 75. East winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50. Northeast winds
up to 10 mph.
.SUNDAY THROUGH MONDAY NIGHT...Partly cloudy. Highs 65 to 75.
Lows 45 to 50.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs 70 to 80. Lows
50 to 55.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 65 to 75. Lows 50 to 55.

$$

MTZ302-221000-
Northern High Plains-
Including Browning, Heart Butte, and Dupuyer
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. Lows 45 to 50. North winds 5 to
10 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs
around 70. North winds 5 to 10 mph shifting to the east 5 to
15 mph in the afternoon.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds up to 10 mph.
.SATURDAY...Sunny. Highs around 75. Southeast winds up to 10 mph
shifting to the east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Southeast winds
5 to 15 mph.
.SUNDAY...Sunny. Highs 75 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 45 to 50.
.MONDAY...Sunny. Highs around 80.
.MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 50 to 55.
Highs 75 to 80.

$$

MTZ308-221000-
Southern High Plains-
Including Bynum, Choteau, and Pendroy
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows around 50. North winds 5 to
15 mph.
.FRIDAY...Mostly cloudy in the morning then clearing. Highs 70 to
75. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph shifting to the northwest after midnight.
.SATURDAY...Sunny. Highs 75 to 80. North winds up to 5 mph
shifting to the east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
5 to 15 mph shifting to the north after midnight.
.SUNDAY THROUGH TUESDAY...Partly cloudy. Highs 75 to 85. Lows
50 to 55.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 55.
Highs 80 to 85.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows around 55. Highs 80 to 85.

$$

MTZ303-221000-
Eastern Glacier, Western Toole, and Central Pondera-
Including Cut Bank, Ethridge, and Santa Rita
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. Lows 45 to 50. Northeast winds
5 to 15 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 70 to
75. North winds 5 to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds up
to 10 mph.
.SATURDAY...Sunny. Highs 75 to 80. Southeast winds up to 10 mph
shifting to the east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 75 to 80. Lows 45 to
50.
.MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 50 to 55.
Highs 80 to 85.

&&
                  TEMPERATURE         /       PRECIPITATION

Cut Bank     48     72     45     77  /  0       0       0       0


$$

MTZ304-221000-
Eastern Toole and Liberty-
Including Devon, Shelby, Chester, Galata, Joplin, Lothair,
and Whitlash
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. Lows around 50. Northeast winds
5 to 15 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 70 to
75. North winds 5 to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. East winds 5 to
10 mph.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs 75 to 85. Lows
50 to 55.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
around 55. Highs 80 to 85.
.THURSDAY...Sunny. Highs 80 to 85.

$$

MTZ305-221000-
Hill County-
Including Havre
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. Lows around 50. North winds
5 to 15 mph.
.FRIDAY...Partly cloudy in the morning then becoming sunny. Highs
in the mid 70s. North winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs 75 to 80. Lows
around 50.
.TUESDAY...Sunny. Highs around 85.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
around 55. Highs around 85.
.THURSDAY...Sunny. Highs around 85.

&&
                  TEMPERATURE         /       PRECIPITATION

Havre        50     75     48     79  /  0       0       0       0


$$

MTZ306-221000-
Northern Blaine County-
Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
10 mph.
.FRIDAY...Sunny. Highs 70 to 75. Northwest winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. Northeast
winds up to 10 mph.
.SATURDAY...Sunny. Highs around 75. East winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 45. East winds 5 to
10 mph.
.SUNDAY...Sunny. Highs around 75.
.SUNDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows 45 to
55. Highs 75 to 85.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 80 to 85.
Lows around 55.
.THURSDAY...Sunny. Highs 80 to 85.

$$

MTZ309-221000-
Eastern Pondera and Eastern Teton-
Including Brady, Conrad, and Ledger
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows around 50. Northeast winds
5 to 10 mph.
.FRIDAY...Mostly cloudy in the morning then clearing. Highs in
the mid 70s. North winds 5 to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. Northeast
winds up to 10 mph.
.SATURDAY...Sunny. Highs around 80. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY...Sunny. Highs around 80.
.SUNDAY NIGHT...Partly cloudy. Lows around 50.
.MONDAY...Sunny. Highs 80 to 85.
.MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 50 to 55.
Highs around 85.

$$

MTZ310-221000-
Western and Central Chouteau County-
Including Floweree, Carter, and Fort Benton
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. A 20 percent chance of rain
showers after midnight. Lows in the mid 50s. Northeast winds 5 to
15 mph.
.FRIDAY...Mostly cloudy in the morning then clearing. Highs in
the mid 70s. North winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. East winds up to
10 mph.
.SATURDAY...Sunny. Highs around 80. East winds 5 to 15 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. East winds 5 to
15 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 85. Lows 50 to
55.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 55.
.TUESDAY...Sunny. Highs around 85.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 55 to 60.
Highs around 85.

$$

MTZ311-221000-
Bears Paw Mountains and Southern Blaine-
Including Rocky Boy
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. A 20 percent chance of rain
showers after midnight. Lows 50 to 55. North winds up to 10 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 70 to
75. North winds 5 to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. Northeast winds up
to 10 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. East winds 5 to
15 mph.
.SUNDAY THROUGH TUESDAY...Mostly clear. Highs 75 to 85. Lows
50 to 55.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 55 to 60.
Highs 80 to 85.

$$

MTZ312-221000-
Cascade County below 5000ft-
Including Great Falls
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. A 20 percent chance of rain
showers after midnight. Lows 50 to 55. Northeast winds 5 to
15 mph.
.FRIDAY...Not as warm. Mostly cloudy in the morning then
clearing. Highs in the mid 70s. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. East winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 80 to 85. South winds up to 5 mph
shifting to the northeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
10 to 15 mph shifting to the east after midnight.
.SUNDAY...Sunny. Highs 80 to 85.
.SUNDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows 50 to
60. Highs 80 to 85.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.

&&
                  TEMPERATURE         /       PRECIPITATION

Great Falls Arpt   55     75     49     81  /  20     0       0       0


$$

MTZ313-221000-
Judith Basin County and Judith Gap-
Including Raynesford, Geyser, Stanford, Windham, Benchland,
Hobson, and Moccasin
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Partly cloudy. A 20 percent chance of rain
showers after midnight. Lows 50 to 55. Northeast winds up to
10 mph.
.FRIDAY...Mostly cloudy with a 20 percent chance of rain showers
in the morning, then sunny in the afternoon. Highs 70 to 75.
North winds up to 10 mph shifting to the northeast in the
afternoon.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. East winds
5 to 10 mph shifting to the southeast after midnight.
.SATURDAY...Sunny. Highs 75 to 80. South winds up to 10 mph
shifting to the east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY...Sunny. Highs 75 to 80.
.SUNDAY NIGHT THROUGH TUESDAY...Partly cloudy. Lows around 50.
Highs 75 to 85.
.TUESDAY NIGHT...Partly cloudy. Lows around 55.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 80 to 85. Lows around 55.

$$

MTZ314-221000-
Fergus County below 4500ft-
Including Hilger and Lewistown
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear early in the evening, then mostly
cloudy with a 20 percent chance of rain showers after midnight.
Lows in the mid 50s. Northeast winds up to 10 mph.
.FRIDAY...Mostly cloudy with a 20 percent chance of rain showers
in the morning, then sunny in the afternoon. Highs 70 to 75.
North winds up to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. East winds up to
10 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds 5 to 15 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. East winds 5 to
15 mph.
.SUNDAY...Sunny. Highs 75 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55.
.MONDAY...Sunny. Highs 75 to 80.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 55.
.TUESDAY...Sunny. Highs 80 to 85.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows 55 to 60.
Highs 80 to 85.

&&
                  TEMPERATURE         /       PRECIPITATION

Lewistown    51     72     46     77  /  30     20     0       0


$$

MTZ315-221000-
Upper Blackfoot and MacDonald Pass-
Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 45 to 50. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 70 to 80. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50. Northeast winds
5 to 15 mph.
.SUNDAY...Partly cloudy. Highs 70 to 80.
.SUNDAY NIGHT...Mostly cloudy. Lows 50 to 55.
.MONDAY THROUGH TUESDAY...Partly cloudy. Highs 70 to 80. Lows
50 to 55.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows 50 to 55. Highs 70 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.

$$

MTZ316-221000-
Gates of the Mountains-
Including Canyon Creek, Wolf Creek, and Craig
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 50 to 55. North winds 5 to
15 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs 70 to
75. North winds 10 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
15 mph.
.SATURDAY...Warmer, sunny. Highs 75 to 85. Northwest winds up to
5 mph shifting to the northeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
15 mph.
.SUNDAY THROUGH TUESDAY NIGHT...Partly cloudy. Highs 75 to 85.
Lows 50 to 60.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 80 to 85. Lows around 55.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 75 to 85.

$$

MTZ317-221000-
Little Belt and Highwood Mountains-
Including Monarch, Neihart, and Kings Hill Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Cooler. Mostly clear. A 20 percent chance of
rain showers after midnight. Lows 45 to 50. East winds up to
10 mph.
.FRIDAY...Mostly cloudy with a 20 percent chance of rain showers
in the morning, then sunny in the afternoon. Highs 65 to 70.
Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph shifting to the southeast after midnight.
.SATURDAY...Sunny. Highs 70 to 75. Southeast winds up to 10 mph
shifting to the east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds
5 to 15 mph shifting to the southeast after midnight.
.SUNDAY THROUGH TUESDAY NIGHT...Partly cloudy. Highs 70 to 80.
Lows 45 to 55.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 70 to 80. Lows 50 to 55.

$$

MTZ318-221000-
Snowy and Judith Mountains-
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear early in the evening, then mostly
cloudy with a 20 percent chance of rain showers after midnight.
Lows 50 to 55. East winds up to 10 mph.
.FRIDAY...Mostly cloudy with a 20 percent chance of rain showers
in the morning, then partly cloudy in the afternoon. Highs 65 to
70. Northeast winds up to 10 mph.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. East winds
up to 10 mph.
.SATURDAY...Sunny. Highs 65 to 75. Southeast winds 5 to 15 mph.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY...Sunny. Highs 65 to 70.
.SUNDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 45 to
55. Highs 65 to 75.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 70 to 80. Lows 50 to 55.

$$

MTZ319-221000-
Helena Valley-
Including Helena
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 50 to 55. Northwest winds
5 to 10 mph.
.FRIDAY...Partly cloudy in the morning then clearing. Highs
around 80. North winds 5 to 15 mph.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. North winds
5 to 15 mph shifting to the northwest up to 5 mph after midnight.
.SATURDAY...Sunny. Highs around 85. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. North winds up to
10 mph.
.SUNDAY THROUGH TUESDAY NIGHT...Partly cloudy. Highs around 85.
Lows 50 to 55.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Highs 80 to 85. Lows around 55.

&&
                  TEMPERATURE         /       PRECIPITATION

Helena       54     80     50     85  /  0       0       0       0


$$

MTZ320-221000-
Big Belt, Bridger and Castle Mountains-
Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass,
and Deep Creek Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Lows 50 to 55. Northeast winds
5 to 10 mph.
.FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. East winds
5 to 15 mph.
.SATURDAY...Sunny. Highs 70 to 80. East winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SUNDAY...Partly cloudy. Highs 70 to 80.
.SUNDAY NIGHT...Mostly cloudy. Lows 45 to 55.
.MONDAY THROUGH TUESDAY...Partly cloudy. Highs 70 to 80. Lows
50 to 55.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.

$$

MTZ321-221000-
Meagher County Valleys-
Including Martinsdale, Checkerboard, Ringling,
and White Sulphur Springs
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Cooler. Mostly clear. Lows 45 to 50. Northeast
winds up to 10 mph.
.FRIDAY...Partly cloudy in the morning then becoming sunny. Highs
70 to 75. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Colder. Mostly clear. Lows 40 to 45. East winds
5 to 15 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 45. East winds 5 to
15 mph.
.SUNDAY...Partly cloudy. Highs 75 to 80.
.SUNDAY NIGHT...Mostly cloudy. Lows around 45.
.MONDAY THROUGH TUESDAY...Partly cloudy. Highs 75 to 80. Lows
45 to 50.
.TUESDAY NIGHT...Mostly cloudy. Lows around 50.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 75 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 75 to 80.

$$

MTZ322-221000-
Elkhorn and Boulder Mountains-
Including Montana City, Clancy, Boulder, Corbin, Wickes,
Elk Park Pass, and Homestake Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze early in the evening. Lows
45 to 55. North winds 5 to 10 mph.
.FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 75 to 80. East winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50. North winds up to
10 mph.
.SUNDAY...Partly cloudy. Highs 70 to 80.
.SUNDAY NIGHT...Mostly cloudy. Lows 50 to 55.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a 20 percent chance
of thunderstorms. Highs 70 to 80. Lows 45 to 55.
.TUESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 65 to 75. Chance of precipitation
40 percent.

$$

MTZ323-221000-
Canyon Ferry Area-
Including Toston, Townsend, and Winston
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze early in the evening. Lows
50 to 55. North winds 5 to 10 mph.
.FRIDAY...Sunny. Highs 75 to 80. North winds 5 to 15 mph.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. Northeast
winds 5 to 15 mph.
.SATURDAY...Sunny. Highs 80 to 85. East winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. Northeast winds
up to 10 mph.
.SUNDAY...Partly cloudy. Highs 80 to 85.
.SUNDAY NIGHT...Mostly cloudy. Lows 50 to 55.
.MONDAY THROUGH TUESDAY...Partly cloudy. Highs 80 to 85. Lows
50 to 55.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows around 55.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows around 55.
.THURSDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.

$$

MTZ324-221000-
Missouri Headwaters-
Including Harrison, Three Forks, Willow Creek, Pony,
and Whitehall
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze. Lows 50 to 55. North winds
up to 10 mph.
.FRIDAY...Sunny. Highs around 80. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. Northeast
winds 5 to 15 mph.
.SATURDAY...Sunny. Highs 80 to 85. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
up to 10 mph.
.SUNDAY...Partly cloudy. Highs 80 to 85.
.SUNDAY NIGHT...Mostly cloudy. Lows 50 to 55.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a 20 percent chance
of thunderstorms. Highs 80 to 85. Lows 50 to 55.
.TUESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs around 80. Chance of precipitation
40 percent.

$$

MTZ325-221000-
Madison River Valley-
Including Cameron, Ennis, Jeffers, McAllister, and Norris
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze early in the evening. Lows
around 50. North winds up to 10 mph.
.FRIDAY...Sunny. Highs around 80. North winds up to 10 mph
increasing to 10 to 15 mph in the afternoon.
.FRIDAY NIGHT...Mostly clear. Haze in the evening. Lows 45 to 50.
Northeast winds 10 to 15 mph shifting to the east after midnight.
.SATURDAY...Sunny. Highs 80 to 85. East winds up to 5 mph
shifting to the north in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
5 to 15 mph.
.SUNDAY...Partly cloudy. Highs 80 to 85.
.SUNDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly cloudy with a
20 percent chance of thunderstorms. Lows 50 to 55. Highs around
80.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 75 to 80. Chance of precipitation
50 percent.

$$

MTZ326-221000-
Gallatin Valley-
Including Bozeman and Gallatin Gateway
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze early in the evening. Lows
around 50. East winds 5 to 10 mph.
.FRIDAY...Sunny. Highs 75 to 80. Northeast winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. East winds 5 to
15 mph.
.SATURDAY...Sunny. Highs around 85. East winds up to 10 mph
shifting to the northeast in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows around 50. East winds 5 to
15 mph.
.SUNDAY...Partly cloudy. Highs 80 to 85.
.SUNDAY NIGHT...Mostly cloudy. Lows around 50.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a 20 percent chance
of thunderstorms. Highs 80 to 85. Lows around 50.
.TUESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 80 to 85.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs around 80. Chance of precipitation
40 percent.

&&
                  TEMPERATURE         /       PRECIPITATION

Bozeman Airport    50     80     45     85  /  0       0       0       0
Bozeman MSU        51     77     48     83  /  0       0       0       0


$$

MTZ330-221000-
Gallatin and Madison County Mountains and Centennial Mountains-
Including Big Sky, West Yellowstone, Targhee Pass,
and Raynolds Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze. Lows 45 to 50. Northeast
winds up to 10 mph.
.FRIDAY...Sunny. Haze in the morning. Highs 70 to 80. North winds
5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Haze. Lows 45 to 50. Northeast
winds 5 to 15 mph.
.SATURDAY...Sunny. Highs 70 to 80. East winds up to 10 mph
shifting to the north in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50. Northeast winds
5 to 15 mph.
.SUNDAY...Partly cloudy. Highs 70 to 80.
.SUNDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy with a
20 percent chance of thunderstorms. Lows 45 to 55. Highs 65 to
75.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy with chance of
rain showers and slight chance of thunderstorms. Highs 65 to 75.
Lows 45 to 50. Chance of precipitation 50 percent.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 60 to 70. Chance of precipitation
50 percent.

&&
                  TEMPERATURE         /       PRECIPITATION

West Yellowstone   39     81     38     83  /  0       0       0       0


$$

MTZ327-221000-
Northwest Beaverhead County-
Including Dewey, Wisdom, Wise River, Big Hole Pass,
and Chief Joseph Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze after midnight. Lows 40 to
50. North winds up to 10 mph.
.FRIDAY...Sunny, haze. Highs 70 to 80. Northeast winds up to
10 mph.
.FRIDAY NIGHT...Mostly clear. Lows 40 to 50. Northeast winds 5 to
10 mph.
.SATURDAY...Sunny. Highs 75 to 85. Southeast winds up to 10 mph
shifting to the northwest in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50. North winds 5 to
15 mph shifting to the east after midnight.
.SUNDAY...Partly cloudy. Highs 70 to 80.
.SUNDAY NIGHT...Mostly cloudy. Lows 45 to 55.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a 20 percent chance
of thunderstorms. Highs 70 to 80. Lows 45 to 50.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a 20 percent
chance of thunderstorms. Highs 65 to 75. Lows 45 to 50.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy with chance of
rain showers and slight chance of thunderstorms. Highs 65 to 75.
Lows 45 to 50. Chance of precipitation 40 percent.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 65 to 75. Chance of precipitation
50 percent.

$$

MTZ328-221000-
Beaverhead and Western Madison below 6000ft-
Including Bannack, Dillon, Glen, and Waterloo
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Cooler. Mostly clear. Haze. Lows 45 to 50.
North winds 5 to 15 mph.
.FRIDAY...Sunny. Haze in the morning. Highs 75 to 85. Northeast
winds 5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to
15 mph.
.SATURDAY...Sunny. Highs 80 to 90. Northeast winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows around 50. Northeast winds
5 to 15 mph.
.SUNDAY...Partly cloudy. Highs 80 to 85.
.SUNDAY NIGHT...Mostly cloudy. Lows 50 to 55.
.MONDAY THROUGH TUESDAY NIGHT...Mostly cloudy with a 20 percent
chance of thunderstorms. Highs 75 to 80. Lows 50 to 55.
.WEDNESDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 75 to 80. Chance of precipitation
50 percent.
.WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Lows 50 to 55. Chance of
precipitation 40 percent.
.THURSDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 75 to 80. Chance of precipitation
50 percent.

&&
                  TEMPERATURE         /       PRECIPITATION

Dillon       47     82     45     86  /  0       0       0       0


$$

MTZ329-221000-
Ruby Mountains and Southern Beaverhead Mountains-
Including Monida Pass
806 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze. Lows 45 to 50. North winds
5 to 15 mph.
.FRIDAY...Sunny. Haze in the morning. Highs 70 to 80. North winds
5 to 15 mph.
.FRIDAY NIGHT...Mostly clear. Haze. Lows 45 to 50. Northeast
winds 5 to 15 mph.
.SATURDAY...Sunny. Highs 75 to 85. North winds up to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. North winds 5 to
15 mph.
.SUNDAY...Mostly cloudy. Highs 70 to 80.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with chance of rain
showers and slight chance of thunderstorms. Highs 70 to 75. Lows
around 50. Chance of precipitation 50 percent.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy with chance of rain
showers and slight chance of thunderstorms. Highs 65 to 75. Lows
around 50. Chance of precipitation 50 percent.
.WEDNESDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs 65 to 75.
.WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Lows around 50. Chance of
precipitation 50 percent.
.THURSDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs 65 to 70.

$$

http://www.weather.gov/greatfalls
https://www.twitter.com/NWSGreatFalls
https://www.facebook.com/NWSGreatFalls