709
FPUS65 KTFX 212138
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
337 PM MDT Tue Jul 21 2026

MTZ301>314-316>318-221200-
Central Montana-
National Weather Service Great Falls MT
337 PM MDT Tue Jul 21 2026


.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Lows 55 to 60.
.WEDNESDAY...Sunny. Slight chance of thunderstorms in the
afternoon. Highs 85 to 90...70 to 80 in the mountains.
.WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. Patchy smoke in the evening. Slight chance of
showers and thunderstorms through the night. Lows 60 to 65...
55 to 60 in the mountains.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 90 to 100.
.FRIDAY...Mostly clear. Lows 60 to 65. Highs 90 to 100.
.SATURDAY...Mostly clear. Lows 60 to 65. Highs 90 to 100.
.SUNDAY...Mostly clear. Lows 60 to 65. Highs 85 to 95.

$$

MTZ315-319>330-221200-
Southwest Montana-
National Weather Service Great Falls MT
337 PM MDT Tue Jul 21 2026

...FLOOD WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING FOR Northwest Beaverhead County...Ruby
Mountains and Southern Beaverhead Mountains...Gallatin and
Madison County Mountains and Centennial Mountains...

.TONIGHT...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the evening. Patchy smoke through the night.
Lows 55 to 60.
.WEDNESDAY...Increasing clouds. Patchy smoke in the morning.
Chance of thunderstorms in the afternoon. Highs 80 to 90...70 to
80 in the mountains.
.WEDNESDAY NIGHT...Mostly cloudy. Chance of showers and
thunderstorms. Lows 50 to 60.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 75 to 85.
.FRIDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90.
.SATURDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90.
.SUNDAY...Mostly clear. Lows 55 to 60. Highs 80 to 90.

$$