260
FPUS65 KTFX 200251
SFPMT

State Forecast For Montana
National Weather Service Great Falls MT
851 PM MDT Tue Aug 19 2025

MTZ001>007-043-201000-
West of the Continental Divide-
National Weather Service Missoula MT
851 PM MDT Tue Aug 19 2025

.TONIGHT...Partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. Lows in the upper 40s to mid 50s.
.WEDNESDAY...Mostly sunny. Highs in the 80s to lower 90s.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s to lower
50s.
.THURSDAY...Mostly clear. Highs in the 80s.
.FRIDAY...Clear. Lows in the 40s. Highs in the 80s.
.SATURDAY...Mostly clear. Lows in the 40s. Highs in the mid 80s
to lower 90s.
.SUNDAY...Mostly clear. Lows in the mid 40s to lower 50s. Highs
in the mid 80s to lower 90s.

$$

MTZ301>314-316>318-201000-
Central Montana-
National Weather Service Great Falls MT
851 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. Chance of showers through the night. Chance of
thunderstorms after midnight. Lows 60 to 65...55 to 60 in the
mountains.
.WEDNESDAY...Sunny. Slight chance of thunderstorms in the
afternoon. Highs 85 to 95...75 to 85 in the mountains.
.WEDNESDAY NIGHT...Partly cloudy. Cooler. Slight chance of
showers and thunderstorms through the night. Lows 50 to 60...
45 to 55 in the mountains.
.THURSDAY...Mostly clear. Highs 75 to 80.
.FRIDAY...Mostly clear. Lows 45 to 55. Highs 70 to 75.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80.
.SUNDAY...Mostly clear. Lows around 50. Highs 75 to 85.
$$

MTZ315-319>330-201000-
Southwest Montana-
National Weather Service Great Falls MT
851 PM MDT Tue Aug 19 2025

.REST OF TONIGHT...Mostly clear. Lows 50 to 60...55 to 65 in the
mountains.
.WEDNESDAY...Partly cloudy. Slight chance of thunderstorms in the
afternoon. Highs 80 to 90...75 to 85 in the mountains.
.WEDNESDAY NIGHT...Partly cloudy. Cooler. Slight chance of
showers and thunderstorms. Lows 45 to 55.
.THURSDAY...Mostly clear. Highs 70 to 80.
.FRIDAY...Mostly clear. Lows 45 to 50. Highs 70 to 80.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 45 to 50. Highs 75 to 85.
$$

MTZ016>027-059>062-201000-
Northeast Montana-
National Weather Service Glasgow MT
851 PM MDT Tue Aug 19 2025

...HEAT ADVISORY IN EFFECT UNTIL 8 PM MDT WEDNESDAY...

.TONIGHT...Mostly clear. Lows in the mid 60s to lower 70s.
.WEDNESDAY...Sunny. Highs in the mid to upper 90s.
.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower to mid 60s.
.THURSDAY...Partly cloudy in the morning then clearing. Highs
near 80.
.FRIDAY...Mostly clear. Highs in the mid to upper 70s. Lows in
the lower to mid 50s.
.SATURDAY...Clear. Highs in the lower to mid 70s. Lows near 50.
.SUNDAY...Mostly clear. Highs in the 70s. Lows in the mid 40s to
lower 50s.

$$

MTZ028>042-056>058-063>068-201000-
South Central and Southeast Montana-
National Weather Service Billings MT
851 PM MDT Tue Aug 19 2025

...Heat Advisory in effect from 9 AM this morning to 9 PM MDT
   Wednesday for portions of South Central Montana... and all of
   Southeast Montana...

.TODAY...Sunny. Highs 94 to 104.
.TONIGHT...Mostly clear. Lows from the mid 50s west to the lower
70s east.
.WEDNESDAY...Sunny. Highs 93 to 103.
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms
west...and slight chance of showers east. Lows in the mid 50s to
upper 60s.
.THURSDAY...Sunny. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms east. Lows of around 50 to around 60.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s to
the upper 50s. Highs in the upper 70s to mid 80s.

$$