FPUS65 KTFX 151332 SFTTFX MTZ301>330-152300- Tabular State Forecast for North Central and Southwest Montana National Weather Service Great Falls MT 732 AM MDT Sat Aug 15 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 Sun Mon Tue Wed Thu Fri Aug 15 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21 ...CENTRAL MONTANA... Great Falls Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /77 51/83 52/83 52/79 49/83 52/85 53/88 /00 20/30 30/00 50/40 20/00 10/10 10/10 Cut Bank Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /71 46/77 47/77 47/73 46/78 48/79 49/81 /00 10/20 20/00 50/20 10/00 00/00 10/10 Havre Ptcldy Smoke Ptcldy Ptcldy Sunny Sunny Sunny /76 49/84 50/83 50/78 48/84 51/86 52/88 /00 30/20 30/10 50/30 20/10 10/00 10/10 Helena Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /78 50/82 53/83 54/79 49/82 51/85 52/88 /20 80/20 30/10 40/30 20/10 10/10 10/10 Lewistown Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /73 48/79 49/78 49/73 46/77 49/81 50/85 /30 50/30 30/20 50/60 30/10 10/10 10/10 Shelby Ptcldy Smoke Ptcldy Ptcldy Sunny Sunny Sunny /72 49/79 49/79 50/75 49/80 51/82 52/83 /00 10/20 20/00 50/30 10/00 00/00 10/10 Chester Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /73 48/81 48/81 49/76 47/82 50/83 51/85 /00 20/20 20/00 40/40 20/00 10/00 10/10 Chinook Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /75 50/82 51/82 50/77 49/82 52/85 52/87 /00 20/20 30/10 50/40 20/10 10/00 10/10 Conrad Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /73 48/80 50/80 51/75 49/81 51/82 51/84 /00 10/20 20/00 40/40 20/00 00/00 10/10 Choteau Smoke Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /74 48/80 49/81 49/76 47/81 50/83 51/85 /00 20/20 20/10 40/50 20/00 10/00 10/10 Fort Benton Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny /78 52/85 52/86 53/80 51/86 53/87 54/90 /00 20/20 30/00 50/40 20/00 10/00 10/10 Stanford Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /73 51/79 52/80 53/74 49/79 52/82 53/86 /20 40/30 30/10 50/50 20/10 10/10 10/10 White Sulphur Springs Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /75 45/78 46/78 46/73 43/76 45/80 47/84 /10 50/20 20/10 50/50 20/10 10/10 10/10 ...SOUTHWEST MONTANA... Bozeman Airport Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /77 47/79 48/81 49/77 46/80 48/83 50/86 /20 60/30 40/10 70/50 20/10 10/10 10/10 Bozeman MSU Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /76 48/78 51/80 51/75 49/78 50/81 52/85 /30 50/30 40/10 80/50 30/10 10/10 10/10 West Yellowstone Tstrms Ptcldy Ptcldy Tstrms Ptcldy Sunny Sunny /72 34/75 35/76 36/73 34/75 35/79 38/82 /50 80/20 20/10 70/50 20/10 10/10 00/10 Dillon Tstrms Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny /74 44/77 46/79 47/76 45/77 47/81 49/84 /70 70/30 30/10 70/30 20/10 10/00 10/10 Boulder Tstrms Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /74 50/79 51/80 52/76 50/78 52/82 53/85 /50 80/30 30/20 60/50 10/20 10/10 10/10 Townsend Ptcldy Ptcldy Ptcldy Tstrms Sunny Sunny Sunny /75 52/78 54/79 54/75 51/78 53/81 55/85 /20 50/30 30/20 60/50 20/10 10/10 10/10 Virginia City Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Sunny Sunny /69 49/72 52/73 51/69 50/71 51/75 54/78 /40 40/30 30/10 70/50 20/20 10/10 10/10 $$ http://www.weather.gov/greatfalls