Weather in Lewistown, Montana, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Lewistown
This Afternoon |
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Temperature: 46°F Wind Speed: 16 to 22 mph Wind Direction: WNW Forecast: A chance of snow before 5pm. Mostly sunny. High near 46, with temperatures falling to around 35 in the afternoon. West northwest wind 16 to 22 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. |
Tonight |
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Temperature: 23°F Wind Speed: 6 to 16 mph Wind Direction: SW Forecast: A chance of snow after 2am. Mostly cloudy. Low around 23, with temperatures rising to around 30 overnight. Southwest wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible. |
Wednesday |
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Temperature: 49°F Wind Speed: 9 to 21 mph Wind Direction: SW Forecast: Snow before 8am, then rain and snow between 8am and 9am, then rain and snow. Cloudy, with a high near 49. Southwest wind 9 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible. |
Wednesday Night |
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Temperature: 37°F Wind Speed: 18 mph Wind Direction: W Forecast: A chance of rain before 2am, then a chance of rain and snow between 2am and 5am, then a chance of rain and snow. Cloudy, with a low around 37. West wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. |
Thursday |
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Temperature: 49°F Wind Speed: 10 to 18 mph Wind Direction: WNW Forecast: Rain and snow before 2pm, then rain and snow. Cloudy, with a high near 49. West northwest wind 10 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible. |
Thursday Night |
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Temperature: 6°F Wind Speed: 3 to 10 mph Wind Direction: NW Forecast: Snow. Cloudy, with a low around 6. Northwest wind 3 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible. |
Friday |
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Temperature: 17°F Wind Speed: 6 mph Wind Direction: ENE Forecast: Snow. Cloudy, with a high near 17. East northeast wind around 6 mph. New snow accumulation of 8 to 12 inches possible. |
Friday Night |
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Temperature: -3°F Wind Speed: 7 mph Wind Direction: N Forecast: Snow likely. Cloudy, with a low around -3. North wind around 7 mph. New snow accumulation of 3 to 7 inches possible. |
Saturday |
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Temperature: 22°F Wind Speed: 2 to 6 mph Wind Direction: W Forecast: A chance of snow before 5pm. Mostly cloudy, with a high near 22. New snow accumulation of less than half an inch possible. |
Saturday Night |
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Temperature: 8°F Wind Speed: 8 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 8. |
Sunday |
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Temperature: 45°F Wind Speed: 10 mph Wind Direction: SW Forecast: Partly sunny, with a high near 45. |
Sunday Night |
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Temperature: 25°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 25. |
Monday |
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Temperature: 43°F Wind Speed: 7 to 10 mph Wind Direction: SW Forecast: Partly sunny, with a high near 43. |
Monday Night |
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Temperature: 28°F Wind Speed: 13 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 28. |