Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
917
FPUS55 KTFX 170910
ZFPTFX
Zone Forecast Product for Central and Southwest Montana
National Weather Service Great Falls MT
309 AM MDT Sun Aug 17 2025
Spot temperatures and probabilities of measurable precipitation
are for today, tonight, and Monday.
MTZ301-172200-
East Glacier Park Region-
Including East Glacier Park, Kiowa, Babb, Saint Mary,
Marias Pass, and Logan Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy in the morning then becoming mostly
cloudy. Highs 60 to 70. Southwest winds 5 to 15 mph.
.TONIGHT...Mostly clear. Lows around 50. Southwest winds 5 to
10 mph.
.MONDAY...Mostly cloudy. A 50 percent chance of rain showers in
the afternoon. Highs 65 to 75. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 50 to 55. Southwest winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 70 to 80. Southwest winds 5 to 15 mph.
.TUESDAY NIGHT...Partly cloudy. Lows around 55.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 70 to 80.
Lows 45 to 50.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 65 to 75. Lows
around 45.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 60 to 70. Lows
45 to 50.
.SATURDAY...Sunny. Highs 65 to 75.
$$
MTZ307-172200-
Southern Rocky Mountain Front-
Including Rogers Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 20 percent chance of thunderstorms in
the afternoon. Highs 65 to 75. West winds 5 to 15 mph.
.TONIGHT...Mostly cloudy in the evening then clearing. Lows 45 to
55. Southwest winds up to 10 mph.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
chance of rain showers and slight chance of thunderstorms in the
afternoon. Highs 70 to 80. Southwest winds 5 to 15 mph. Chance of
precipitation 50 percent.
.MONDAY NIGHT...Mostly clear. Lows 50 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 75 to 85. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows around 55.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 75 to 85.
Lows around 50.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs 65 to 75.
Lows 45 to 50.
.SATURDAY...Sunny. Highs 70 to 80.
$$
MTZ302-172200-
Northern High Plains-
Including Browning, Heart Butte, and Dupuyer
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy in the morning then becoming mostly
cloudy. Highs 75 to 80. West winds 5 to 15 mph.
.TONIGHT...Mostly clear. Lows 50 to 55. West winds 5 to 10 mph.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 80 to
85. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds 5 to
10 mph.
.TUESDAY...Sunny. Highs 85 to 90. Southwest winds 5 to 15 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows 55 to 60.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 80 to 85.
Lows 50 to 55.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 70 to 80. Lows
45 to 50.
$$
MTZ308-172200-
Southern High Plains-
Including Bynum, Choteau, and Pendroy
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Mostly cloudy. A 20 percent chance of
thunderstorms in the afternoon. Highs around 80. Southwest winds
up to 10 mph.
.TONIGHT...Mostly cloudy in the evening then clearing. Lows in
the mid 50s. West winds up to 10 mph.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
chance of rain showers and slight chance of thunderstorms in the
afternoon. Highs in the mid 80s. Southwest winds up to 10 mph.
Chance of precipitation 50 percent.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 90 to 95. West winds up to 5 mph shifting
to the south in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 85 to 90.
Lows around 55.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 85. Lows
around 50.
$$
MTZ303-172200-
Eastern Glacier, Western Toole, and Central Pondera-
Including Cut Bank, Ethridge, and Santa Rita
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy in the morning then becoming
mostly cloudy. Highs 75 to 80. West winds 5 to 10 mph.
.TONIGHT...Partly cloudy. Lows 50 to 55. West winds up to 10 mph.
.MONDAY...Partly cloudy. A 20 percent chance of rain showers in
the afternoon. Highs 80 to 85. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs around 90. West winds up to 10 mph
shifting to the south in the afternoon.
.TUESDAY NIGHT...Mostly cloudy. Lows 55 to 60.
.WEDNESDAY...Sunny. Highs 85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
75 to 80. Lows 45 to 50.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
45 to 50.
.SATURDAY...Sunny. Highs around 80.
&&
TEMPERATURE / PRECIPITATION
Cut Bank 80 50 85 / 0 0 20
$$
MTZ304-172200-
Eastern Toole and Liberty-
Including Devon, Shelby, Chester, Galata, Joplin, Lothair,
and Whitlash
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. Highs 80 to 85. West winds
5 to 10 mph.
.TONIGHT...Mostly cloudy in the evening then clearing. Lows in
the mid 50s. Southwest winds up to 10 mph.
.MONDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 85 to 90. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows around 60. West winds up to
10 mph shifting to the northeast after midnight.
.TUESDAY...Sunny. Highs 90 to 95. Northwest winds up to 5 mph
shifting to the south in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY...Sunny. Highs 85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
75 to 80. Lows around 50.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 80. Lows
around 50.
.SATURDAY...Sunny. Highs 75 to 85.
$$
MTZ305-172200-
Hill County-
Including Havre
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. Highs 80 to 85. West winds
up to 10 mph.
.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows 55 to 60. Southwest winds up to 10 mph.
.MONDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of rain showers in the afternoon. Highs 85 to
90. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows around 60. South winds 5 to
10 mph shifting to the east after midnight.
.TUESDAY...Sunny. Highs around 95. Northeast winds up to 5 mph
shifting to the southeast in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY...Sunny. Highs around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 80. Lows
around 50.
&&
TEMPERATURE / PRECIPITATION
Havre 86 57 89 / 10 10 20
$$
MTZ306-172200-
Northern Blaine County-
Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy. Highs 80 to 85. West winds 5 to 15 mph.
.TONIGHT...Mostly cloudy. Lows 55 to 60. West winds up to 10 mph.
.MONDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 85 to 90. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows around 60. Southeast winds
5 to 10 mph.
.TUESDAY...Sunny. Highs 90 to 95. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY...Sunny. Highs around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
75 to 80. Lows around 50.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 70 to 80. Lows
45 to 50.
$$
MTZ309-172200-
Eastern Pondera and Eastern Teton-
Including Brady, Conrad, and Ledger
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. A 20 percent chance of rain
showers in the afternoon. Highs 80 to 85. West winds up to
10 mph.
.TONIGHT...Mostly cloudy in the evening then clearing. Lows 50 to
55. West winds up to 10 mph.
.MONDAY...Partly cloudy. A 20 percent chance of rain showers in
the afternoon. Highs 85 to 90. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. Northwest winds up
to 10 mph.
.TUESDAY...Sunny. Highs around 95. West winds up to 5 mph
shifting to the southeast in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY...Sunny. Highs around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 85. Lows
around 50.
$$
MTZ310-172200-
Western and Central Chouteau County-
Including Floweree, Carter, and Fort Benton
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. Highs in the mid 80s. West
winds up to 10 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 55 to 60. South winds up to 10 mph.
.MONDAY...Sunny. A 20 percent chance of rain showers in the
afternoon. Highs 85 to 90. South winds up to 5 mph.
.MONDAY NIGHT...Mostly clear. Lows 60 to 65. Southeast winds up
to 10 mph.
.TUESDAY...Sunny. Highs around 95. Southwest winds up to 5 mph
shifting to the north in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows 60 to 65.
.WEDNESDAY...Sunny. Highs 90 to 95.
.WEDNESDAY NIGHT...Partly cloudy. Lows 55 to 60.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 85. Lows
50 to 55.
$$
MTZ311-172200-
Bears Paw Mountains and Southern Blaine-
Including Rocky Boy
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy. Highs 80 to 85. West winds 5 to 15 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 55 to 60. Southwest winds up to 10 mph.
.MONDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of rain showers in the afternoon. Highs 85 to
90. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 60 to 65. Southeast winds up
to 10 mph.
.TUESDAY...Sunny. Highs 90 to 95. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 60 to 65.
.WEDNESDAY...Sunny. Highs 85 to 95.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 55 to 60.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
75 to 80. Lows 50 to 55.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 70 to 80. Lows
50 to 55.
$$
MTZ312-172200-
Cascade County below 5000ft-
Including Great Falls
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. A 20 percent chance of
thunderstorms in the afternoon. Highs 80 to 85. Southwest winds
up to 10 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows 55 to 60. Southwest winds 5 to 10 mph.
.MONDAY...Haze in the morning. Sunny in the morning, then mostly
cloudy with a 40 percent chance of rain showers in the afternoon.
Highs 85 to 90. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows around 60. West winds 5 to
10 mph shifting to the south after midnight.
.TUESDAY...Sunny. Highs around 95. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows around 60.
.WEDNESDAY...Sunny. Highs 90 to 95.
.WEDNESDAY NIGHT...Partly cloudy. Lows 55 to 60.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
80 to 85. Lows 50 to 55.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 85. Lows
around 50.
&&
TEMPERATURE / PRECIPITATION
Great Falls Arpt 83 56 89 / 20 20 20
$$
MTZ313-172200-
Judith Basin County and Judith Gap-
Including Raynesford, Geyser, Stanford, Windham, Benchland,
Hobson, and Moccasin
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy in the morning, then mostly
cloudy with a 50 percent chance of thunderstorms in the
afternoon. Highs around 80. Southwest winds up to 5 mph shifting
to the north in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze after midnight. Lows in the mid 50s. South winds 5 to
10 mph.
.MONDAY...Haze in the morning. Sunny in the morning, then mostly
cloudy with a 50 percent chance of rain showers in the afternoon.
Highs in the mid 80s. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. East winds up to
10 mph shifting to the south after midnight.
.TUESDAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph
shifting to the northeast in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows around 60.
Highs around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 80. Lows
around 50.
$$
MTZ314-172200-
Fergus County below 4500ft-
Including Hilger and Lewistown
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy. A 20 percent chance of
thunderstorms in the afternoon. Highs 80 to 85. West winds up to
10 mph shifting to the northwest in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 55 to 60. South winds 5 to 15 mph.
.MONDAY...Haze in the morning. Sunny in the morning, then mostly
cloudy with a 40 percent chance of rain showers in the afternoon.
Highs 85 to 90. Southwest winds up to 5 mph shifting to the
southeast in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 60 to 65. Southeast winds up
to 10 mph.
.TUESDAY...Warmer, sunny. Highs 90 to 100. South winds up to
10 mph shifting to the southeast in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 60 to 65. Highs
90 to 95.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 60 to 65.
.THURSDAY...Not as warm. Sunny. Highs around 80.
.THURSDAY NIGHT...Mostly clear with a 20 percent chance of rain
showers. Lows around 55.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 80. Lows
50 to 55.
&&
TEMPERATURE / PRECIPITATION
Lewistown 81 53 85 / 40 50 40
$$
MTZ315-172200-
Upper Blackfoot and MacDonald Pass-
Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Mostly cloudy. A 50 percent chance of
thunderstorms in the afternoon. Highs 70 to 75. West winds up to
10 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows 50 to 55. Southwest winds up to 10 mph.
.MONDAY...Warmer. Partly cloudy in the morning, then mostly
cloudy with a 50 percent chance of rain showers in the afternoon.
Highs 75 to 85. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 80 to 90. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 55 to 60.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 80 to 85.
Lows 50 to 55.
.THURSDAY...Sunny. Highs 75 to 80.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 45 to
50. Highs 70 to 80.
.SATURDAY...Sunny. Highs 75 to 85.
$$
MTZ316-172200-
Gates of the Mountains-
Including Canyon Creek, Wolf Creek, and Craig
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Mostly cloudy. A 50 percent chance of
thunderstorms in the afternoon. Highs 75 to 85. Southwest winds
up to 10 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows in the mid 50s. South winds up to 10 mph.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with a
40 percent chance of rain showers in the afternoon. Highs 80 to
90. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 90 to 95. South winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 55 to 60.
.WEDNESDAY...Sunny. Highs 85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 80 to 85. Lows
50 to 55.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 85. Lows
around 50.
$$
MTZ317-172200-
Little Belt and Highwood Mountains-
Including Monarch, Neihart, and Kings Hill Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy in the morning, then mostly cloudy with a
50 percent chance of thunderstorms in the afternoon. Highs 70 to
80. Southwest winds up to 10 mph.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze after midnight. Lows 50 to 55. South winds 5 to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 75 to
85. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. West winds up to
10 mph shifting to the south after midnight.
.TUESDAY...Sunny. Highs 80 to 90. Southwest winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
80 to 85.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY AND THURSDAY NIGHT...Not as warm. Mostly clear. Highs
70 to 80. Lows 45 to 50.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 65 to 75. Lows
45 to 50.
.SATURDAY...Sunny. Highs 70 to 80.
$$
MTZ318-172200-
Snowy and Judith Mountains-
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 75 to 80. West winds up to 10 mph shifting
to the east in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze after midnight. Lows 50 to 55. Southwest winds 5 to 15 mph.
.MONDAY...Haze in the morning. Sunny in the morning, then mostly
cloudy with a 50 percent chance of rain showers in the afternoon.
Highs 75 to 85. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. Southeast winds up
to 10 mph.
.TUESDAY...Sunny. Highs 85 to 90. Southwest winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows around 60.
Highs 80 to 85.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 55 to 60.
.THURSDAY...Sunny. Highs 70 to 75.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows around 50.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 65 to 75. Lows
45 to 50.
$$
MTZ319-172200-
Helena Valley-
Including Helena
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Mostly cloudy. A 50 percent chance of
thunderstorms in the afternoon. Highs 80 to 85. West winds up to
10 mph.
.TONIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 50 to 55. Southeast winds up to 10 mph.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 85 to
90. Southeast winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 55 to 60. Northwest winds 5 to
10 mph shifting to the southwest after midnight.
.TUESDAY...Sunny. Highs around 95. Southeast winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
90 to 95.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY...Sunny. Highs 85 to 90.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows around 50.
Highs 80 to 90.
&&
TEMPERATURE / PRECIPITATION
Helena 83 55 89 / 50 30 40
$$
MTZ320-172200-
Big Belt, Bridger and Castle Mountains-
Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass,
and Deep Creek Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Partly cloudy in the morning, then mostly cloudy with a
50 percent chance of thunderstorms in the afternoon. Highs 70 to
80. Southwest winds up to 10 mph.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze through the night. Lows 50 to 55. South winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 75 to
85. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Haze in the evening. Lows 55 to 60.
Northwest winds up to 10 mph shifting to the east after midnight.
.TUESDAY...Sunny. Highs 80 to 90. South winds up to 10 mph
shifting to the southwest in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
80 to 85.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs 70 to 80.
Lows 45 to 50.
.SATURDAY...Sunny. Highs 75 to 85.
$$
MTZ321-172200-
Meagher County Valleys-
Including Martinsdale, Checkerboard, Ringling,
and White Sulphur Springs
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Partly cloudy in the morning, then mostly
cloudy with a 50 percent chance of thunderstorms in the
afternoon. Highs around 80. South winds up to 5 mph shifting to
the west in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze after midnight. Lows around 50. South winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 80 to
85. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Haze in the evening. Lows 50 to 55.
North winds 5 to 10 mph shifting to the east after midnight.
.TUESDAY...Sunny. Highs around 90. South winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 50 to 55. Highs
85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 75 to 80. Lows
45 to 50.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 45. Highs
around 80.
$$
MTZ322-172200-
Elkhorn and Boulder Mountains-
Including Montana City, Clancy, Boulder, Corbin, Wickes,
Elk Park Pass, and Homestake Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 70 to 80. Southwest winds up to 5 mph
increasing to 5 to 15 mph in the afternoon.
.TONIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows 50 to 55. Southwest winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 75 to 85. Southwest winds up to 10 mph. Chance of
precipitation 50 percent.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 60. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 80 to 90. South winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 50 to 60.
.WEDNESDAY...Sunny. Highs 75 to 85.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY...Sunny. Highs 70 to 80.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 45 to
55. Highs 70 to 80.
.SATURDAY...Sunny. Highs 75 to 85.
$$
MTZ323-172200-
Canyon Ferry Area-
Including Toston, Townsend, and Winston
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 80 to 85. North winds up to 10 mph.
.TONIGHT...Cooler. Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Haze after midnight. Lows 50 to 55. Southeast winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with a
50 percent chance of rain showers in the afternoon. Highs 85 to
90. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Haze in the evening. Lows 55 to 60.
North winds 5 to 10 mph shifting to the east after midnight.
.TUESDAY...Sunny. Highs 90 to 95. South winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 55 to 60.
.THURSDAY...Sunny. Highs around 85.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55.
.FRIDAY...Sunny. Highs 80 to 85.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 50 to 55. Highs
85 to 90.
$$
MTZ324-172200-
Missouri Headwaters-
Including Harrison, Three Forks, Willow Creek, Pony,
and Whitehall
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms in the afternoon. Highs 80 to 85. Southwest winds
up to 5 mph shifting to the northwest 5 to 15 mph in the
afternoon. Chance of precipitation 70 percent.
.TONIGHT...Haze in the evening. Mostly cloudy with a 50 percent
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows 50 to 55. Southwest winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs 85 to
90. Southwest winds up to 10 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 55. West winds up to
10 mph.
.TUESDAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
90 to 95.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY...Sunny. Highs 85 to 90.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 50 to 55. Highs
around 85.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 50. Highs
85 to 90.
$$
MTZ325-172200-
Madison River Valley-
Including Cameron, Ennis, Jeffers, McAllister, and Norris
309 AM MDT Sun Aug 17 2025
.TODAY...Not as warm. Mostly cloudy. Rain showers likely and
chance of thunderstorms in the afternoon. Highs 80 to 85.
Southeast winds up to 10 mph shifting to the west in the
afternoon. Chance of precipitation 70 percent.
.TONIGHT...Haze and areas of smoke in the evening. Mostly cloudy
with a 50 percent chance of thunderstorms in the evening, then
mostly clear after midnight. Lows 50 to 55. South winds up to
10 mph.
.MONDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs in the
mid 80s. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 60. South winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 90 to 95. South winds 5 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
around 90.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 50 to 55.
Highs 85 to 90.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows around 50.
Highs 85 to 90.
$$
MTZ326-172200-
Gallatin Valley-
Including Bozeman and Gallatin Gateway
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 80 to 85. Southwest winds up to 5 mph
shifting to the west 5 to 15 mph in the afternoon.
.TONIGHT...Haze in the evening. Mostly cloudy with a 50 percent
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows 50 to 55. Southeast winds up to 10 mph.
.MONDAY...Partly cloudy. A 20 percent chance of thunderstorms in
the afternoon. Haze in the afternoon. Highs 85 to 90. South winds
up to 5 mph shifting to the west in the afternoon.
.MONDAY NIGHT...Partly cloudy. Haze in the evening. Lows around
55. West winds 5 to 10 mph shifting to the southeast after
midnight.
.TUESDAY...Sunny. Highs 90 to 95. South winds up to 10 mph
shifting to the west in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 55 to 60. Highs
around 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 55.
.THURSDAY...Sunny. Highs 85 to 90.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows around 50.
Highs 80 to 90.
&&
TEMPERATURE / PRECIPITATION
Bozeman Airport 86 50 89 / 60 50 20
Bozeman MSU 83 52 86 / 70 50 30
$$
MTZ330-172200-
Gallatin and Madison County Mountains and Centennial Mountains-
Including Big Sky, West Yellowstone, Targhee Pass,
and Raynolds Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 65 to 75. South winds up to 10 mph shifting
to the southwest in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 45 to 50. South winds up to 10 mph.
.MONDAY...Sunny in the morning, then partly cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 70 to 80. South winds 5 to 15 mph. Gusts up to 30 mph in
the afternoon. Chance of precipitation 50 percent.
.MONDAY NIGHT...Mostly clear. Lows 50 to 55. South winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 75 to 85. South winds 5 to 15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 50 to 60. Highs
75 to 85.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. Lows 45 to 55.
.THURSDAY THROUGH FRIDAY NIGHT...Mostly clear. Highs 70 to 80.
Lows 45 to 50.
.SATURDAY...Sunny with a 20 percent chance of thunderstorms.
Highs 70 to 80.
&&
TEMPERATURE / PRECIPITATION
West Yellowstone 78 40 82 / 60 40 10
$$
MTZ327-172200-
Northwest Beaverhead County-
Including Dewey, Wisdom, Wise River, Big Hole Pass,
and Chief Joseph Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 65 to 75. Southwest winds 5 to 15 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows 45 to 50. South winds up to 10 mph.
.MONDAY...Sunny in the morning, then mostly cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 70 to 80. Southwest winds 5 to 15 mph. Chance of
precipitation 50 percent.
.MONDAY NIGHT...Mostly clear. Lows 45 to 55. West winds 5 to
10 mph shifting to the southeast after midnight.
.TUESDAY...Sunny. Highs 75 to 85. South winds 5 to 15 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 45 to 55.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 75 to 85.
Lows 45 to 50.
.THURSDAY...Sunny. Highs 70 to 80.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 45 to 50.
Highs 75 to 85.
$$
MTZ328-172200-
Beaverhead and Western Madison below 6000ft-
Including Bannack, Dillon, Glen, and Waterloo
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 75 to 80. South winds up to 5 mph shifting
to the southwest 5 to 15 mph in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows around 50. East winds up to 10 mph shifting to the south
after midnight.
.MONDAY...Sunny in the morning, then mostly cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 80 to 85. Southwest winds 5 to 15 mph. Chance of
precipitation 50 percent.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 55. Southwest winds
5 to 15 mph.
.TUESDAY...Warmer, sunny. Highs 90 to 95. South winds 5 to
15 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 50 to 55. Highs
85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY...Sunny. Highs 80 to 90.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 45 to 50.
Highs 80 to 90.
&&
TEMPERATURE / PRECIPITATION
Dillon 81 48 88 / 70 40 20
$$
MTZ329-172200-
Ruby Mountains and Southern Beaverhead Mountains-
Including Monida Pass
309 AM MDT Sun Aug 17 2025
.TODAY...Mostly cloudy. A 50 percent chance of thunderstorms in
the afternoon. Highs 70 to 75. South winds up to 10 mph shifting
to the southwest with gusts to around 30 mph in the afternoon.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows around 50. East winds 5 to 10 mph shifting to the south
after midnight.
.MONDAY...Sunny in the morning, then mostly cloudy with chance of
rain showers and slight chance of thunderstorms in the afternoon.
Highs 75 to 80. South winds 5 to 15 mph. Chance of precipitation
50 percent.
.MONDAY NIGHT...Mostly clear. Lows 50 to 55. South winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 80 to 85. South winds 5 to 15 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 50 to
55. Highs 75 to 85.
.THURSDAY...Sunny. Highs 75 to 85.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 45 to
50. Highs 75 to 85.
.SATURDAY...Sunny with a 20 percent chance of thunderstorms.
Highs 75 to 85.
$$
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