| NWS Forecast for: Lewistown Municipal MT Issued by: National Weather Service Great Falls, MT Last Update: 8:58 am MDT Jul 3, 2025 |  |
| Today: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. Northwest wind around 6 mph. Chance of precipitation is 20%. Tonight: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 55. West northwest wind 5 to 7 mph becoming light and variable after midnight. Independence Day: A 40 percent chance of showers after noon. Partly sunny, with a high near 75. Light and variable wind becoming east northeast 5 to 8 mph in the morning. Friday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 49. East wind 5 to 9 mph becoming south southwest in the evening. Chance of precipitation is 80%. Saturday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 69. South southwest wind 5 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 70%. Saturday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 47. Northwest wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 30%. Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. South southwest wind 5 to 7 mph becoming northwest in the afternoon. Sunday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. North wind around 7 mph becoming south after midnight. Monday: Sunny, with a high near 79. Monday Night: Mostly clear, with a low around 53. Tuesday: Sunny, with a high near 85. Tuesday Night: Mostly clear, with a low around 56. Wednesday: Sunny, with a high near 88. | |
| Lewistown Municipal MT 47.04°N 109.45°W (Elev. 4111 ft) | |
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