| NWS Forecast for: Lewistown MT Issued by: National Weather Service Great Falls, MT Last Update: 4:12 pm MDT Jun 17, 2024 | |
| This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 50. East northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Tonight: Showers and possibly a thunderstorm. Low around 34. Northeast wind around 11 mph becoming west northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible. Tuesday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 4pm. High near 55. West northwest wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tuesday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 34. West northwest wind around 6 mph becoming south in the evening. Chance of precipitation is 30%. Juneteenth: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66. South wind 3 to 6 mph. Wednesday Night: Partly cloudy, with a low around 41. South southeast wind around 6 mph. Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. Light and variable wind becoming east 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Thursday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a low around 46. East wind 5 to 9 mph becoming light southeast after midnight. Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71. Friday Night: A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47. Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 76. Saturday Night: Mostly clear, with a low around 51. Sunday: Sunny, with a high near 85. Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. Monday: A slight chance of showers. Mostly sunny, with a high near 80. | |
| Lewistown MT 47.07°N 109.43°W (Elev. 3898 ft) | |
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