7-Day Forecast Summary
7-Day Detailed Weather Forecast for Lewistown
Today |
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Temperature: 58°F Wind Speed: 2 to 13 mph Wind Direction: E Forecast: Mostly sunny. High near 58, with temperatures falling to around 54 in the afternoon. East wind 2 to 13 mph, with gusts as high as 21 mph. |
Tonight |
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Temperature: 35°F Wind Speed: 5 to 13 mph Wind Direction: ESE Forecast: Mostly clear, with a low around 35. East southeast wind 5 to 13 mph, with gusts as high as 22 mph. |
Monday |
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Temperature: 72°F Wind Speed: 2 to 7 mph Wind Direction: SW Forecast: Sunny. High near 72, with temperatures falling to around 67 in the afternoon. Southwest wind 2 to 7 mph. |
Monday Night |
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Temperature: 40°F Wind Speed: 3 to 7 mph Wind Direction: SSE Forecast: Partly cloudy, with a low around 40. South southeast wind 3 to 7 mph. |
Tuesday |
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Temperature: 59°F Wind Speed: 2 to 6 mph Wind Direction: W Forecast: Mostly sunny, with a high near 59. West wind 2 to 6 mph. |
Tuesday Night |
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Temperature: 35°F Wind Speed: 2 mph Wind Direction: SSW Forecast: Partly cloudy, with a low around 35. South southwest wind around 2 mph. |
Wednesday |
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Temperature: 69°F Wind Speed: 3 to 7 mph Wind Direction: SSE Forecast: Sunny, with a high near 69. South southeast wind 3 to 7 mph. |
Wednesday Night |
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Temperature: 44°F Wind Speed: 5 to 10 mph Wind Direction: S Forecast: Partly cloudy, with a low around 44. South wind 5 to 10 mph. |
Thursday |
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Temperature: 74°F Wind Speed: 7 mph Wind Direction: SSW Forecast: Mostly sunny, with a high near 74. |
Thursday Night |
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Temperature: 42°F Wind Speed: 2 to 7 mph Wind Direction: SW Forecast: A chance of rain. Partly cloudy, with a low around 42. |
Friday |
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Temperature: 54°F Wind Speed: 7 to 16 mph Wind Direction: WNW Forecast: Rain likely. Mostly cloudy, with a high near 54. |
Friday Night |
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Temperature: 30°F Wind Speed: 14 to 17 mph Wind Direction: WNW Forecast: A chance of rain and snow. Mostly cloudy, with a low around 30. Little or no snow accumulation expected. |
Saturday |
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Temperature: 44°F Wind Speed: 8 to 13 mph Wind Direction: W Forecast: Mostly sunny, with a high near 44. |
Saturday Night |
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Temperature: 27°F Wind Speed: 6 mph Wind Direction: SSE Forecast: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 27. |

