Expires:202607191000;;161660 FPUS55 KTFX 180632 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 1232 AM MDT Sat Jul 18 2026 Spot temperatures and probabilities of measurable precipitation are for .TONIGHT THROUGH TODAY..., Sunday, Sunday night, and Monday. MTZ302-191000- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 1232 AM MDT Sat Jul 18 2026 .REST OF TONIGHT...Mostly clear with a 20 percent chance of thunderstorms. Highs in the upper 80s. Lows 55 to 60. Southwest winds up to 20 mph with gusts to around 35 mph. .SUNDAY...Breezy, sunny. Highs 81 to 87. West winds 5 to 10 mph increasing to 15 to 25 mph in the afternoon. .SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds 5 to 15 mph. Gusts up to 35 mph in the evening. .MONDAY...Mostly sunny. Highs in the upper 70s. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. Northeast winds up to 10 mph. .TUESDAY...Partly sunny. Highs in the lower 80s. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. .WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers. Highs in the mid 80s. Lows in the upper 50s. .THURSDAY THROUGH FRIDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the upper 80s. Lows in the lower 60s. .SATURDAY...Sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 80s. $$