FPUS65 KTFX 180936 SFTTFX MTZ301>330-182300- Tabular State Forecast for North Central and Southwest Montana National Weather Service Great Falls MT 336 AM MDT Sat Apr 18 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 Apr 18 Apr 19 Apr 20 Apr 21 Apr 22 Apr 23 Apr 24 ...CENTRAL MONTANA... Great Falls Sunny Sunny Sunny Sunny Shwrs Snow Ptcldy /58 29/68 39/75 43/81 47/69 34/44 27/45 /00 00/00 00/00 00/00 10/50 80/70 30/20 Cut Bank Sunny Sunny Sunny Sunny Rain Windy Ptcldy /57 25/67 36/73 40/78 44/62 30/43 24/45 /00 00/00 00/00 00/00 00/50 70/40 10/10 Havre Sunny Sunny Sunny Sunny Ptcldy Rnsnow Ptcldy /59 27/69 38/74 43/81 48/72 33/47 26/48 /00 00/00 00/00 00/00 10/30 70/50 20/10 Helena Sunny Sunny Ptcldy Sunny Rain Rnsnow Ptcldy /59 31/69 40/75 43/79 45/67 34/45 26/49 /00 00/00 00/00 00/00 10/70 80/80 30/20 Lewistown Sunny Sunny Ptcldy Ptcldy Rain Rnsnow Ptcldy /55 28/65 40/71 44/78 49/69 30/41 22/42 /00 00/00 00/00 00/00 10/50 80/80 40/30 Shelby Sunny Sunny Sunny Sunny Rain Snow Ptcldy /58 25/69 36/75 40/81 46/66 31/44 25/46 /00 00/00 00/00 00/00 10/50 80/50 20/20 Chester Sunny Sunny Sunny Sunny Ptcldy Snow Ptcldy /58 25/68 36/74 40/81 46/69 31/44 24/45 /00 00/00 00/00 00/00 10/40 80/50 20/20 Chinook Sunny Sunny Sunny Sunny Ptcldy Rnsnow Ptcldy /58 27/67 36/73 42/81 47/74 33/48 25/47 /00 00/00 00/00 00/00 10/30 70/60 20/20 Conrad Sunny Sunny Sunny Sunny Rain Snow Ptcldy /59 26/69 38/75 42/80 46/66 31/44 25/46 /00 00/00 00/00 00/00 10/60 80/60 20/20 Choteau Sunny Sunny Ptcldy Sunny Rain Snow Ptcldy /58 27/69 38/74 42/79 45/65 31/44 25/45 /00 00/00 00/00 00/00 10/60 80/60 20/20 Fort Benton Sunny Sunny Sunny Sunny Rain Rnsnow Ptcldy /61 29/72 39/78 45/83 50/73 35/47 28/48 /00 00/00 00/00 00/00 10/50 80/70 30/20 Stanford Sunny Sunny Ptcldy Sunny Rain Snow Ptcldy /56 30/66 41/71 45/77 49/69 31/42 24/43 /00 00/00 00/00 00/00 10/60 80/80 40/30 White Sulphur Springs Sunny Sunny Sunny Sunny Rain Snow Ptcldy /54 27/65 36/71 41/76 45/66 32/44 24/47 /00 00/00 00/00 00/00 10/60 80/80 40/30 ...SOUTHWEST MONTANA... Bozeman Airport Sunny Sunny Sunny Sunny Rain Rnsnow Ptcldy /56 25/67 35/74 39/78 43/67 33/47 24/50 /00 00/00 00/00 00/00 10/50 80/80 30/20 Bozeman MSU Sunny Sunny Sunny Sunny Rain Rnsnow Ptcldy /54 28/6537/72 43/75 46/65 33/46 25/48 /00 00/00 00/00 00/00 10/50 80/80 40/30 West Yellowstone Sunny Sunny Sunny Sunny Rain Snow Ptcldy /45 15/58 25/64 30/67 33/54 29/44 21/46 /00 00/00 00/00 00/00 20/60 80/80 40/30 Dillon Sunny Sunny Sunny Sunny Rain Rnsnow Ptcldy /56 27/66 35/73 40/75 43/62 35/48 25/50 /00 00/00 00/00 00/00 10/50 70/60 20/10 Boulder Sunny Sunny Sunny Sunny Rain Snow Ptcldy /56 32/67 41/73 44/75 46/64 33/44 26/46 /00 00/00 00/00 00/00 10/70 80/80 40/30 Townsend Sunny Sunny Sunny Sunny Rain Rnsnow Ptcldy /59 32/69 41/75 46/80 50/69 38/49 30/50 /00 00/00 00/00 00/00 00/60 80/70 30/20 Virginia City Sunny Sunny Sunny Sunny Rain Snow Ptcldy /48 28/59 37/65 43/67 44/56 32/41 24/43 /00 00/00 00/00 00/00 10/60 80/70 40/20 $$ http://www.weather.gov/greatfalls