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I-15 weather conditions near Great Falls, Montana

       Seasoned Weather Conditions

      

       Current Weather Conditions

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7 day weather forecast

  • Current condition: Clear 84°F 2025-06-19T17:30:00
  • Tonight 2025-06-19, Slight Chance Showers then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 55. Northeast wind 8 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
  • Friday 2025-06-20, Chance Showers then Showers. Showers, with thunderstorms also possible after 3pm. High near 74. North northeast wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
  • Friday Night 2025-06-20, Showers. Showers and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Low around 47. West southwest wind 8 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
  • Saturday 2025-06-21, Breezy. Rain Likely then Chance Rain. Rain likely, mainly before noon. Mostly cloudy, with a high near 63. Breezy, with a west southwest wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%.
  • Saturday Night 2025-06-21, Rain Likely. Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. West northwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
  • Sunday 2025-06-22, Rain. Rain. High near 55. West northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
  • Sunday Night 2025-06-22, Chance Rain. A 30 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 35. West northwest wind 6 to 9 mph becoming south southwest after midnight.
  • Monday 2025-06-23, Sunny then Chance Showers. A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. South southwest wind 6 to 8 mph.
  • Monday Night 2025-06-23, Slight Chance Showers then Mostly Clear. A slight chance of showers before midnight. Partly cloudy, with a low around 42.
  • Tuesday 2025-06-24, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
  • Tuesday Night 2025-06-24, Slight Chance Showers then Partly Cloudy. A slight chance of showers. Partly cloudy, with a low around 46.
  • Wednesday 2025-06-25, Sunny then Chance Showers. A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
  • Wednesday Night 2025-06-25, Slight Chance Showers then Mostly Clear. A slight chance of showers. Mostly clear, with a low around 51.
  • Thursday 2025-06-26, Mostly Sunny. Mostly sunny, with a high near 86.





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