Area Forecast Product
Issued by NWS Great Falls, MT

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FPUS65 KTFX 232138
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
337 PM MDT Thu Jul 23 2026

MTZ301>314-316>318-241200-
Central Montana-
National Weather Service Great Falls MT
337 PM MDT Thu Jul 23 2026

...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SUNDAY
FOR Eastern Glacier, Western Toole, and Central Pondera...Eastern
Toole and Liberty...Eastern Pondera and Eastern Teton...Gates of
the Mountains...
...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO NOON MDT
SATURDAY FOR Hill County...Northern Blaine County...Western and
Central Chouteau County...Bears Paw Mountains and Southern
Blaine...Cascade County below 5000ft...Judith Basin County and
Judith Gap...Fergus County below 4500ft...

.TONIGHT...Mostly clear. Slight chance of showers and
thunderstorms in the evening. Patchy smoke through the night.
Lows 60 to 70...55 to 65 in the mountains.
.FRIDAY...Sunny. Patchy smoke through the day. Highs 90 to 100...
80 to 90 in the mountains. West winds 20 to 25 mph with gusts to
35 mph in the afternoon.
.FRIDAY NIGHT...Mostly clear. Patchy smoke. Lows 60 to 65.
.SATURDAY...Mostly clear. Slight chance of showers. Highs 95 to
105.
.SUNDAY...Clear. Lows 60 to 65. Highs 90 to 100.
.MONDAY...Mostly clear. Lows 55 to 65. Highs 85 to 95.
.TUESDAY...Mostly clear. Lows 55 to 65. Highs 90 to 100.

$$

MTZ315-319>330-241200-
Southwest Montana-
National Weather Service Great Falls MT
337 PM MDT Thu Jul 23 2026

...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SUNDAY
FOR Helena Valley...Meagher County Valleys...Canyon Ferry
Area...Missouri Headwaters...Madison River Valley...Gallatin
Valley...Beaverhead and Western Madison below 6000ft...

.TONIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Patchy smoke through the night.
Lows 55 to 65.
.FRIDAY...Sunny. Patchy smoke in the morning. Slight chance of
thunderstorms in the afternoon. Highs 85 to 95...75 to 85 in the
mountains.
.FRIDAY NIGHT...Mostly clear. Slight chance of showers and
thunderstorms. Lows 55 to 65.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 85 to 95.
.SUNDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90.
.MONDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90.
.TUESDAY...Mostly clear. Lows 50 to 60. Highs 80 to 90.

$$