519
FPUS65 KTFX 171838
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
Issued by National Weather Service Missoula MT
1237 PM MDT Fri Jul 17 2026

MTZ301>314-316>318-180000-
Central Montana-
National Weather Service Great Falls MT
1237 PM MDT Fri Jul 17 2026


.REST OF TODAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 85 to 95...75 to 85 in the mountains.
.TONIGHT...Mostly cloudy. Chance of showers and thunderstorms.
Lows 60 to 65...55 to 60 in the mountains.
.SATURDAY...Sunny then becoming partly cloudy. Slight chance of
showers through the day. Slight chance of thunderstorms in the
evening. Highs 90 to 95...75 to 85 in the mountains.
.SUNDAY...Mostly clear. Lows 55 to 65. Highs 85 to 95.
.MONDAY...Mostly clear. Lows 55 to 60. Highs 75 to 85.
.TUESDAY...Partly cloudy. Lows 55 to 60. Highs 80 to 90.

$$

MTZ315-319>330-180000-
Southwest Montana-
National Weather Service Great Falls MT
1237 PM MDT Fri Jul 17 2026

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR Big
Belt, Bridger and Castle Mountains...

.REST OF TODAY...Mostly cloudy. Chance of showers and
thunderstorms. Some thunderstorms may produce heavy rainfall.
Highs 85 to 95...75 to 85 in the mountains.
.TONIGHT...Mostly cloudy in the evening then clearing. Showers
likely and chance of thunderstorms. Some thunderstorms may
produce heavy rainfall. Lows 50 to 60.
.SATURDAY...Sunny then becoming partly cloudy. Slight chance of
showers and thunderstorms in the afternoon and evening. Highs
85 to 90...70 to 80 in the mountains.
.SUNDAY...Mostly clear. Lows 50 to 60. Highs 80 to 90.
.MONDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 55 to 60. Highs 75 to 85.

$$