FPUS65 KTFX 210936 SFTTFX MTZ301>330-212300- Tabular State Forecast for North Central and Southwest Montana National Weather Service Great Falls MT 336 AM MDT Sun Jun 21 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 Today Mon Tue Wed Thu Fri Sat Jun 21 Jun 22 Jun 23 Jun 24 Jun 25 Jun 26 Jun 27 ...CENTRAL MONTANA... Great Falls Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy /74 48/67 44/72 47/79 51/86 55/83 53/73 /10 20/10 00/00 00/00 00/10 10/20 30/30 Cut Bank Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy /69 43/62 40/71 46/77 49/83 54/77 50/68 /30 50/10 00/00 00/00 00/10 10/10 10/30 Havre Sunny Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy /75 46/68 44/73 45/79 51/86 55/86 53/76 /00 40/30 10/10 00/00 00/10 20/20 40/40 Helena Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy /80 50/72 45/77 49/83 52/87 55/83 52/71 /00 00/20 00/00 00/00 10/20 10/30 30/40 Lewistown Ptcldy Tstrms Sunny Ptcldy Ptcldy Ptcldy Tstrms /71 44/64 41/68 42/74 46/79 50/81 48/69 /10 50/50 10/00 00/10 10/20 20/30 60/60 Shelby Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy /71 44/65 42/72 46/78 50/85 55/80 52/71 /10 50/10 00/00 00/00 10/10 10/10 10/30 Chester Sunny Ptcldy Sunny Ptcldy Ptcldy Mocldy Ptcldy /72 44/66 42/72 46/78 50/85 54/83 52/73 /00 50/20 00/00 00/00 00/10 20/20 30/30 Chinook Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /74 47/68 46/72 45/77 50/84 55/85 54/76 /00 40/30 10/10 00/00 10/10 30/30 50/40 Conrad Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy /72 44/65 42/72 45/78 49/85 54/81 51/71 /20 40/10 00/00 00/00 00/10 10/10 20/30 Choteau Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy /73 45/65 42/72 46/79 50/86 54/81 51/71 /20 40/30 10/00 00/00 00/10 10/10 20/30 Fort Benton Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy /77 49/71 46/75 49/82 52/89 56/88 54/77 /10 40/20 00/00 00/00 00/10 10/20 30/30 Stanford Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Tstrms /72 47/64 43/68 45/75 50/81 53/81 51/69 /20 40/40 10/00 00/20 10/20 20/40 40/60 White Sulphur Springs Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy Tstrms /73 43/66 39/71 41/76 44/80 47/79 45/65 /00 10/30 10/00 00/10 10/20 10/30 40/60 ...SOUTHWEST MONTANA... Bozeman Airport Sunny Sunny Sunny Sunny Ptcldy Ptcldy Tstrms /78 46/74 42/77 45/82 47/86 50/85 48/70 /00 10/00 00/00 00/00 00/20 10/20 50/70 Bozeman MSU Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Tstrms /76 46/7243/75 45/80 48/84 51/83 49/69 /00 20/10 10/00 00/00 10/20 10/30 50/70 West Yellowstone Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Tstrms /70 37/72 35/77 38/79 38/79 41/77 40/64 /20 40/00 00/00 00/10 10/10 00/10 30/60 Dillon Sunny Sunny Sunny Sunny Sunny Ptcldy Tstrms /77 45/75 43/78 46/82 48/86 50/82 47/70 /10 10/00 00/00 00/10 10/10 10/20 30/50 Boulder Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy Tstrms /77 47/71 43/75 47/80 50/84 52/79 49/67 /00 00/20 00/00 00/10 00/30 10/30 40/60 Townsend Sunny Sunny Sunny Sunny Ptcldy Ptcldy Tstrms /78 50/73 47/77 50/81 52/85 55/84 51/70 /00 00/10 00/00 00/10 00/20 10/30 50/70 Virginia City Sunny Sunny Sunny Sunny Ptcldy Ptcldy Tstrms /69 45/68 42/70 46/74 48/77 51/75 48/63 /10 20/00 00/00 00/10 10/20 10/20 40/70 $$ http://www.weather.gov/greatfalls