FPUS65 KTFX 180416 SFTTFX MTZ301>330-181100- Tabular State Forecast for North Central and Southwest Montana National Weather Service Great Falls MT 1016 PM MDT Sun May 17 2026 ROWS INCLUDE... Daily predominant daytime weather 6AM-6PM Forecast temperatures...early morning low/daytime high Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM - indicates temperatures below zero MM indicates missing data FCST FCST FCST FCST FCST FCST FCST Mon Tue Wed Thu Fri Sat Sun May 18 May 19 May 20 May 21 May 22 May 23 May 24 ...CENTRAL MONTANA... Great Falls Ptcldy Ptcldy Shwrs Ptcldy Ptcldy Sunny Ptcldy 28/53 30/65 40/62 39/67 43/68 43/76 48/77 90/00 00/30 10/50 40/10 20/30 10/00 10/10 Cut Bank Ptcldy Ptcldy Shwrs Ptcldy Ptcldy Ptcldy Ptcldy 24/54 30/63 37/59 35/65 39/66 40/72 43/72 20/20 10/10 10/60 30/10 20/30 00/10 10/00 Havre Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy Sunny 27/55 28/68 39/65 37/68 41/69 42/77 46/78 40/10 00/50 10/40 20/10 30/20 10/10 10/10 Helena Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Sunny 31/56 32/65 38/65 37/67 40/71 41/76 44/78 30/10 10/20 00/40 40/10 10/20 10/10 10/10 Lewistown Mocldy Sunny Shwrs Ptcldy Ptcldy Ptcldy Sunny 27/47 25/60 35/59 35/62 39/64 39/72 44/75 60/40 00/30 00/60 40/20 20/40 10/10 10/20 Shelby Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy 26/56 31/65 39/61 37/67 41/67 41/75 44/75 20/10 10/20 10/40 20/10 20/30 10/10 10/10 Chester Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy 25/55 29/66 37/62 36/67 39/68 40/76 43/77 20/10 00/30 10/30 20/10 30/20 10/10 10/10 Chinook Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 28/54 28/67 39/65 37/69 41/69 42/78 46/79 40/00 00/30 10/40 20/10 30/30 20/10 10/10 Conrad Ptcldy Ptcldy Shwrs Ptcldy Ptcldy Ptcldy Ptcldy 26/55 30/65 38/61 36/67 40/67 40/75 44/76 20/20 10/10 10/50 30/10 20/30 10/00 10/10 Choteau Ptcldy Ptcldy Shwrs Ptcldy Ptcldy Ptcldy Sunny 25/54 30/64 37/61 37/66 40/67 41/75 45/76 40/30 10/10 10/60 40/10 10/30 10/00 10/00 Fort Benton Ptcldy Sunny Shwrs Ptcldy Ptcldy Ptcldy Sunny 30/57 31/68 41/66 39/69 43/70 43/80 47/80 90/00 00/30 10/50 50/10 20/30 10/00 10/10 Stanford Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy Sunny 27/48 27/60 38/59 37/62 41/64 42/72 47/74 70/20 00/30 00/60 50/20 20/40 10/10 10/10 White Sulphur Springs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 26/50 25/59 33/59 34/62 38/65 38/72 42/74 20/10 00/20 00/40 50/10 20/30 20/10 10/10 ...SOUTHWEST MONTANA... Bozeman Airport Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 25/51 25/61 33/64 35/65 38/69 38/76 42/79 20/10 00/10 00/20 40/10 20/30 10/10 10/10 Bozeman MSU Mocldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 27/49 27/5935/62 37/64 40/68 40/75 45/78 20/20 10/10 00/20 50/10 20/30 10/10 10/10 West Yellowstone Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 21/44 18/54 26/58 28/61 30/65 31/71 34/74 10/10 10/10 00/10 20/10 20/20 00/10 10/10 Dillon Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 25/51 26/60 33/63 35/66 38/70 38/76 42/78 20/00 10/10 00/10 20/10 10/10 00/10 10/10 Boulder Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny 28/51 29/59 35/61 37/64 40/67 41/74 44/75 20/10 10/20 00/20 30/10 10/20 10/10 10/10 Townsend Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny 32/55 33/63 39/63 40/66 43/69 43/76 46/78 20/00 00/30 10/30 30/10 10/20 20/10 10/10 Virginia City Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny 25/43 26/53 34/56 35/58 39/61 40/67 44/70 20/20 00/10 00/10 20/10 20/20 00/10 10/10 $$ http://www.weather.gov/greatfalls