Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
140
FPUS55 KTFX 200216
ZFPTFX
Zone Forecast Product for Central and Southwest Montana
National Weather Service Great Falls MT
816 PM MDT Tue Aug 19 2025
Spot temperatures and probabilities of measurable precipitation
are for the rest of tonight, Wednesday, Wednesday night, and
Thursday.
MTZ301-201000-
East Glacier Park Region-
Including East Glacier Park, Kiowa, Babb, Saint Mary,
Marias Pass, and Logan Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 55 to 60. Southwest winds 5 to 15 mph.
.WEDNESDAY...Sunny. Highs 65 to 75. Southwest winds 10 to 20 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. Lows in the mid 40s.
West winds 5 to 15 mph. Gusts up to 30 mph in the evening.
.THURSDAY...Sunny. Highs 65 to 75. West winds 5 to 15 mph.
.THURSDAY NIGHT...Mostly clear. Lows 40 to 45. North winds 5 to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 60 to 70. Lows
40 to 45.
.SATURDAY...Sunny. Highs 65 to 75.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 55.
Highs 70 to 80.
$$
MTZ307-201000-
Southern Rocky Mountain Front-
Including Rogers Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms. Lows 55 to 60. West winds 5 to 10 mph.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 70 to 80. West winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. West
winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 65 to 75. West winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 40 to 50. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 60 to 70.
.FRIDAY NIGHT...Clear. Lows 40 to 45.
.SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 65 to 75. Lows
45 to 50.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs 70 to 80. Lows
around 50.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
70 to 80.
$$
MTZ302-201000-
Northern High Plains-
Including Browning, Heart Butte, and Dupuyer
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy. Slight chance of thunderstorms
early in the evening, then chance of thunderstorms after
midnight. Lows 55 to 60. West winds 5 to 10 mph. Chance of
thunderstorms 50 percent.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 80 to 85. West winds 10 to 20 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. West
winds 5 to 15 mph. Gusts up to 30 mph in the evening.
.THURSDAY...Sunny. Highs around 75. West winds 5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs around 70. Lows
around 45.
.SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs 75 to 80.
Lows 45 to 50.
.MONDAY THROUGH TUESDAY...Mostly clear. Highs around 80. Lows
50 to 55.
$$
MTZ308-201000-
Southern High Plains-
Including Bynum, Choteau, and Pendroy
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms. Lows around 60. Northwest winds 5 to 10 mph.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. Southwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows 50 to 55. West winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds up to 10 mph
shifting to the east in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
10 mph.
.FRIDAY...Sunny. Highs 70 to 75.
.FRIDAY NIGHT...Clear. Lows 45 to 50.
.SATURDAY THROUGH TUESDAY...Mostly clear. Highs 75 to 85. Lows
50 to 55.
$$
MTZ303-201000-
Eastern Glacier, Western Toole, and Central Pondera-
Including Cut Bank, Ethridge, and Santa Rita
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy. Slight chance of thunderstorms
early in the evening, then chance of thunderstorms after
midnight. Lows around 60. West winds 5 to 10 mph. Chance of
thunderstorms 50 percent.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. West winds 5 to 10 mph increasing to
10 to 20 mph in the afternoon.
.WEDNESDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. Northwest
winds 5 to 15 mph. Gusts up to 30 mph in the evening.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph
shifting to the west in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
45 to 50.
.SATURDAY...Sunny. Highs around 75.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 80 to 85.
&&
TEMPERATURE / PRECIPITATION
Cut Bank 58 86 48 77 / 50 20 0 0
$$
MTZ304-201000-
Eastern Toole and Liberty-
Including Devon, Shelby, Chester, Galata, Joplin, Lothair,
and Whitlash
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy early in the evening then
becoming mostly cloudy. Chance of showers and slight chance of
thunderstorms early in the evening, then chance of thunderstorms
after midnight. Lows around 60. Northeast winds 5 to 10 mph
shifting to the northwest after midnight. Chance of precipitation
50 percent.
.WEDNESDAY...Sunny with a 20 percent chance of thunderstorms.
Highs 85 to 90. West winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows around 50. Northwest winds
5 to 15 mph.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
around 50.
.SATURDAY...Sunny. Highs 75 to 80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 80 to 85.
$$
MTZ305-201000-
Hill County-
Including Havre
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy early in the evening then
becoming mostly cloudy. Slight chance of thunderstorms early in
the evening, then chance of thunderstorms after midnight. Lows
60 to 65. Northeast winds 5 to 10 mph shifting to the north 5 to
15 mph after midnight. Chance of thunderstorms 50 percent.
.WEDNESDAY...Sunny with a 20 percent chance of thunderstorms.
Highs around 90. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 50 to 55. Northwest winds 5 to
15 mph.
.THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds
5 to 15 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs around 75. Lows
45 to 50.
.SATURDAY...Sunny. Highs 75 to 80.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 50 to
55. Highs 80 to 85.
.TUESDAY...Sunny. Highs around 85.
&&
TEMPERATURE / PRECIPITATION
Havre 62 93 53 79 / 40 20 20 0
$$
MTZ306-201000-
Northern Blaine County-
Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear early in the evening, then mostly
cloudy with a 40 percent chance of thunderstorms after midnight.
Lows around 60. Northeast winds up to 10 mph.
.WEDNESDAY...Partly cloudy in the morning, then sunny with a
20 percent chance of thunderstorms in the afternoon. Highs 85 to
90. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows in the mid 50s. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph.
.THURSDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. Northwest
winds 5 to 15 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
around 45.
.SATURDAY...Sunny. Highs 70 to 75.
.SATURDAY NIGHT...Mostly clear. Lows 45 to 50.
.SUNDAY...Sunny. Highs 75 to 80.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows around 50.
Highs 80 to 85.
$$
MTZ309-201000-
Eastern Pondera and Eastern Teton-
Including Brady, Conrad, and Ledger
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms. Lows around 60. North winds 5 to 10 mph.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs around 90. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows around 50. Northwest winds
5 to 15 mph.
.THURSDAY...Not as warm. Sunny. Highs around 80. Northwest winds
5 to 10 mph shifting to the northeast in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
10 mph.
.FRIDAY...Sunny. Highs around 75.
.FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs around
80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 50.
Highs 80 to 85.
$$
MTZ310-201000-
Western and Central Chouteau County-
Including Floweree, Carter, and Fort Benton
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms early in the evening, then slight chance
of thunderstorms after midnight. Lows 60 to 65. East winds 5 to
10 mph shifting to the northwest after midnight. Chance of
precipitation 50 percent.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs around 90. Northwest winds 5 to 10 mph.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. Northwest
winds 5 to 15 mph.
.THURSDAY...Not as warm. Sunny. Highs around 80. Northwest winds
5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55. Northeast winds
5 to 10 mph.
.FRIDAY...Sunny. Highs around 75.
.FRIDAY NIGHT AND SATURDAY...Clear. Lows around 50. Highs around
80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 80 to 85.
$$
MTZ311-201000-
Bears Paw Mountains and Southern Blaine-
Including Rocky Boy
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear early in the evening, then mostly
cloudy with a 20 percent chance of thunderstorms after midnight.
Lows 60 to 65. East winds 5 to 10 mph shifting to the north after
midnight.
.WEDNESDAY...Sunny. Highs 85 to 90. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with chance of
thunderstorms in the evening, then partly cloudy with slight
chance of thunderstorms after midnight. Lows 55 to 60. Northwest
winds 5 to 10 mph. Chance of thunderstorms 30 percent.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds up to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
around 50.
.SATURDAY...Sunny. Highs 75 to 80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 75 to 85.
$$
MTZ312-201000-
Cascade County below 5000ft-
Including Great Falls
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows around 60. Northeast winds 5 to 10 mph
shifting to the west after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 90 to 95. West winds up to 10 mph.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 50 to 55. West winds 5 to
15 mph.
.THURSDAY...Not as warm. Sunny. Highs around 80. North winds up
to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
5 to 15 mph.
.FRIDAY...Sunny. Highs 75 to 80.
.FRIDAY NIGHT AND SATURDAY...Clear. Lows around 50. Highs 80 to
85.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 80 to 90.
&&
TEMPERATURE / PRECIPITATION
Great Falls Arpt 60 92 54 81 / 30 20 20 0
$$
MTZ313-201000-
Judith Basin County and Judith Gap-
Including Raynesford, Geyser, Stanford, Windham, Benchland,
Hobson, and Moccasin
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows around 60. Southeast winds
5 to 10 mph shifting to the southwest after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of thunderstorms in the
evening, then slight chance of thunderstorms after midnight. Lows
in the mid 50s. Northwest winds 5 to 10 mph. Chance of
thunderstorms 40 percent.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
up to 10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs around 75. Lows
45 to 50.
.SATURDAY...Sunny. Highs 75 to 80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 75 to 85.
$$
MTZ314-201000-
Fergus County below 4500ft-
Including Hilger and Lewistown
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 60 to 65. East winds 5 to
10 mph shifting to the southwest after midnight.
.WEDNESDAY...Sunny. Highs 85 to 95. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 40 percent chance
of thunderstorms. Lows 55 to 60. Northwest winds 5 to 15 mph.
.THURSDAY...Not as warm. Sunny. A 20 percent chance of rain
showers in the morning. Highs 75 to 80. Northwest winds 5 to
15 mph.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds up to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 75 to 80. Lows
50 to 55.
.SATURDAY...Sunny. Highs 75 to 80.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55.
Highs 75 to 85.
&&
TEMPERATURE / PRECIPITATION
Lewistown 58 88 53 76 / 0 10 40 20
$$
MTZ315-201000-
Upper Blackfoot and MacDonald Pass-
Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy with chance of thunderstorms
early in the evening, then partly cloudy with slight chance of
thunderstorms after midnight. Lows 55 to 60. Northwest winds up
to 10 mph. Chance of thunderstorms 50 percent.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 75 to 85. West winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of
thunderstorms in the evening. Lows 45 to 55. West winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 65 to 75.
.FRIDAY NIGHT...Clear. Lows 45 to 50.
.SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 70 to 80. Lows
45 to 55.
.SUNDAY THROUGH MONDAY NIGHT...Mostly clear. Highs 75 to 85. Lows
50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
75 to 85.
$$
MTZ316-201000-
Gates of the Mountains-
Including Canyon Creek, Wolf Creek, and Craig
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy early in the evening then
becoming partly cloudy. Chance of thunderstorms early in the
evening, then slight chance of thunderstorms after midnight. Lows
55 to 60. North winds up to 10 mph. Chance of thunderstorms
40 percent.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. West winds up to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. West winds
5 to 15 mph.
.THURSDAY...Sunny. Highs 75 to 85. North winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows around 50. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 70 to 80.
.FRIDAY NIGHT...Clear. Lows around 50.
.SATURDAY THROUGH SUNDAY...Mostly clear. Highs 75 to 85. Lows
around 50.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows around 55.
Highs 80 to 85.
$$
MTZ317-201000-
Little Belt and Highwood Mountains-
Including Monarch, Neihart, and Kings Hill Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. Southeast winds
5 to 10 mph shifting to the southwest after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 80 to 85. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with chance of
thunderstorms in the evening, then partly cloudy with slight
chance of thunderstorms after midnight. Lows 50 to 55. Northwest
winds up to 10 mph. Chance of thunderstorms 40 percent.
.THURSDAY...Sunny. Highs 70 to 75. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph.
.FRIDAY...Sunny. Highs 65 to 75.
.FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs 70 to
75.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 55.
Highs 70 to 80.
$$
MTZ318-201000-
Snowy and Judith Mountains-
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows around 60. Southeast winds
5 to 10 mph shifting to the south 5 to 15 mph after midnight.
.WEDNESDAY...Sunny. Highs 80 to 85. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 40 percent chance
of thunderstorms. Lows 50 to 55. Northwest winds 5 to 15 mph.
.THURSDAY...Partly cloudy with a 20 percent chance of rain
showers in the morning, then sunny in the afternoon. Highs 70 to
75. Northwest winds 5 to 15 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 65 to 70. Lows
45 to 50.
.SATURDAY...Sunny. Highs 65 to 75.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 50.
Highs 70 to 80.
$$
MTZ319-201000-
Helena Valley-
Including Helena
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly cloudy early in the evening then
clearing. A 20 percent chance of thunderstorms early in the
evening. Lows 55 to 60. Northwest winds up to 10 mph.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs around 90. West winds up to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. Northwest
winds 5 to 15 mph.
.THURSDAY...Sunny. Highs around 85. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows around 50. North winds up to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Clear. Highs around 80. Lows 45 to 50.
.SATURDAY THROUGH MONDAY NIGHT...Mostly clear. Highs 85 to 90.
Lows 50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
85 to 90.
&&
TEMPERATURE / PRECIPITATION
Helena 60 92 56 85 / 20 20 20 0
$$
MTZ320-201000-
Big Belt, Bridger and Castle Mountains-
Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass,
and Deep Creek Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 65. Southeast winds
5 to 10 mph shifting to the southwest after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 80 to 85. West winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 20 percent chance
of thunderstorms in the evening, then partly cloudy after
midnight. Lows 50 to 55. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
5 to 10 mph.
.FRIDAY...Sunny. Highs 65 to 75.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 50. Highs
70 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 70 to 80. Lows
50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
70 to 80.
$$
MTZ321-201000-
Meagher County Valleys-
Including Martinsdale, Checkerboard, Ringling,
and White Sulphur Springs
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 50 to 60. East winds 5 to
10 mph shifting to the north after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. Northwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 20 percent chance of thunderstorms. Lows 50 to
55. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 75 to 80. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up
to 10 mph.
.FRIDAY...Sunny. Highs around 75.
.FRIDAY NIGHT AND SATURDAY...Clear. Lows around 45. Highs 75 to
80.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows around 45. Highs
75 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 45 to 50.
.MONDAY THROUGH TUESDAY...Mostly clear. Highs 75 to 80. Lows
around 50.
$$
MTZ322-201000-
Elkhorn and Boulder Mountains-
Including Montana City, Clancy, Boulder, Corbin, Wickes,
Elk Park Pass, and Homestake Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy. A 20 percent chance of
thunderstorms early in the evening. Lows 55 to 60. Southwest
winds 5 to 10 mph shifting to the northwest after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 75 to 85. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 50 to 55. Northwest winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 70 to 80. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 70 to 75.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 50. Highs
70 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55.
.MONDAY...Sunny with a 20 percent chance of thunderstorms. Highs
70 to 80.
.MONDAY NIGHT...Mostly clear. Lows 50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
70 to 80.
$$
MTZ323-201000-
Canyon Ferry Area-
Including Toston, Townsend, and Winston
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. Southeast winds
5 to 10 mph shifting to the northwest after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs 85 to 90. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows in the mid 50s. Northwest
winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds 5 to
10 mph.
.FRIDAY...Sunny. Highs around 80.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 50 to 55. Highs
80 to 85.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs around 85. Lows
50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
$$
MTZ324-201000-
Missouri Headwaters-
Including Harrison, Three Forks, Willow Creek, Pony,
and Whitehall
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to
10 mph shifting to the west after midnight.
.WEDNESDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs around 90. West winds up to 10 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 20 percent chance
of thunderstorms in the evening, then partly cloudy after
midnight. Lows 50 to 55. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds up to
10 mph.
.FRIDAY...Sunny. Highs 80 to 85.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 50. Highs
80 to 85.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55.
.MONDAY...Sunny with a 20 percent chance of thunderstorms. Highs
around 85.
.MONDAY NIGHT...Partly cloudy. Lows 50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
$$
MTZ325-201000-
Madison River Valley-
Including Cameron, Ennis, Jeffers, McAllister, and Norris
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 10 to
15 mph.
.WEDNESDAY...Partly cloudy. A 20 percent chance of thunderstorms
in the afternoon. Highs around 90. Southwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy in the evening then
clearing. Lows 50 to 55. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
5 to 15 mph.
.FRIDAY...Sunny. Highs 80 to 85.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs
80 to 85.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 55.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs 80 to 85. Lows 50 to 55.
.MONDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
.MONDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
$$
MTZ326-201000-
Gallatin Valley-
Including Bozeman and Gallatin Gateway
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to
15 mph.
.WEDNESDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs around
90. Southwest winds up to 10 mph shifting to the northwest in the
afternoon.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 20 percent chance
of thunderstorms in the evening, then partly cloudy after
midnight. Lows 50 to 55. Northwest winds 5 to 15 mph shifting to
the west up to 5 mph after midnight.
.THURSDAY...Sunny. Highs 80 to 85. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to
10 mph shifting to the east after midnight.
.FRIDAY...Sunny. Highs around 80.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs
80 to 85.
.SATURDAY NIGHT...Partly cloudy. Lows around 50.
.SUNDAY...Sunny. Highs 80 to 85.
.SUNDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.MONDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
.MONDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.TUESDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
&&
TEMPERATURE / PRECIPITATION
Bozeman Airport 54 93 51 86 / 0 20 20 10
Bozeman MSU 58 90 53 83 / 0 20 20 10
$$
MTZ330-201000-
Gallatin and Madison County Mountains and Centennial Mountains-
Including Big Sky, West Yellowstone, Targhee Pass,
and Raynolds Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to
15 mph.
.WEDNESDAY...Partly cloudy. A 20 percent chance of thunderstorms
in the afternoon. Highs 75 to 85. Southwest winds 5 to 15 mph.
Gusts up to 30 mph in the afternoon.
.WEDNESDAY NIGHT...Cooler. Partly cloudy. A 20 percent chance of
thunderstorms in the evening. Lows 45 to 50. West winds 5 to
15 mph shifting to the north after midnight.
.THURSDAY...Sunny. Highs 70 to 80. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
15 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 70 to 80. Lows
45 to 50.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs 70 to 80. Lows 45 to 50.
.MONDAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 70 to 80. Chance of precipitation
40 percent.
.MONDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 45 to 50.
.TUESDAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 70 to 80. Chance of precipitation
40 percent.
&&
TEMPERATURE / PRECIPITATION
West Yellowstone 47 85 41 81 / 0 20 20 10
$$
MTZ327-201000-
Northwest Beaverhead County-
Including Dewey, Wisdom, Wise River, Big Hole Pass,
and Chief Joseph Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Partly cloudy. A 20 percent chance of
thunderstorms early in the evening. Lows 50 to 60. Southwest
winds up to 10 mph.
.WEDNESDAY...Partly cloudy. Haze through the day. A 20 percent
chance of thunderstorms in the afternoon. Highs 75 to 85. West
winds up to 10 mph increasing to 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Colder. Mostly clear. A 20 percent chance of
thunderstorms in the evening. Haze in the evening. Lows 40 to 50.
Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 70 to 80. North winds up to 5 mph
shifting to the northwest in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 40 to 50. North winds up to
10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 80. Lows
40 to 50.
.SATURDAY...Sunny. Highs 75 to 85.
.SATURDAY NIGHT...Partly cloudy. Lows 45 to 50.
.SUNDAY THROUGH TUESDAY...Partly cloudy with a 20 percent chance
of thunderstorms. Highs 70 to 80. Lows 45 to 50.
$$
MTZ328-201000-
Beaverhead and Western Madison below 6000ft-
Including Bannack, Dillon, Glen, and Waterloo
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to
15 mph.
.WEDNESDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs 85 to
90. Southwest winds 5 to 15 mph.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy in the evening then
clearing. Lows around 50. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
15 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 80 to 85. Lows
45 to 50.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 55.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs 80 to 85. Lows 50 to 55.
.MONDAY...Sunny with a 20 percent chance of thunderstorms. Highs
80 to 85.
.MONDAY NIGHT AND TUESDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows around 50. Highs 80 to 85.
&&
TEMPERATURE / PRECIPITATION
Dillon 52 90 48 84 / 0 20 10 0
$$
MTZ329-201000-
Ruby Mountains and Southern Beaverhead Mountains-
Including Monida Pass
816 PM MDT Tue Aug 19 2025
.REST OF TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to
15 mph.
.WEDNESDAY...Sunny in the morning, then partly cloudy with a
20 percent chance of thunderstorms in the afternoon. Highs 75 to
85. South winds up to 10 mph shifting to the southwest in the
afternoon.
.WEDNESDAY NIGHT...Cooler. Mostly cloudy in the evening then
clearing. Lows 45 to 50. Northwest winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to
15 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 80. Lows
45 to 50.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 55.
.SUNDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 70 to 80. Chance of precipitation
40 percent.
.SUNDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 50 to 55.
.MONDAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 70 to 80. Chance of precipitation
50 percent.
.MONDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows around 50.
.TUESDAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Highs 70 to 75. Chance of precipitation
50 percent.
$$
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