| NWS Forecast for: Lewistown Municipal MT Issued by: National Weather Service Great Falls, MT Last Update: 4:09 pm MDT Jul 3, 2025 |  |
| This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. West northwest wind around 6 mph. Tonight: A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming light and variable after midnight. Independence Day: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 79. Light and variable wind becoming south 5 to 9 mph in the morning. Friday Night: Showers and possibly a thunderstorm. Low around 51. West southwest wind 5 to 9 mph becoming north northeast in the evening. Chance of precipitation is 80%. Saturday: Showers, with thunderstorms also possible after 3pm. High near 69. West wind 5 to 7 mph becoming east in the morning. Chance of precipitation is 80%. Saturday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. North northwest wind 5 to 7 mph becoming light and variable after midnight. Sunday: Sunny, with a high near 77. Light and variable wind becoming northwest around 6 mph in the afternoon. Sunday Night: Mostly clear, with a low around 51. North northwest wind around 6 mph becoming south southeast after midnight. Monday: Sunny, with a high near 81. Monday Night: Mostly clear, with a low around 55. Tuesday: Sunny, with a high near 88. Tuesday Night: Partly cloudy, with a low around 58. Wednesday: Sunny, with a high near 90. Wednesday Night: Partly cloudy, with a low around 58. Thursday: Mostly sunny, with a high near 88. | |
| Lewistown Municipal MT 47.04°N 109.45°W (Elev. 4111 ft) | |
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