7-Day Forecast Summary
7-Day Detailed Weather Forecast for Lewistown
Tonight |
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Temperature: 63°F Wind Speed: 1 mph Wind Direction: NE Forecast: Patchy fog after 4am. Mostly cloudy, with a low around 63. Northeast wind around 1 mph. |
Thursday |
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Temperature: 86°F Wind Speed: 0 to 3 mph Wind Direction: SW Forecast: Areas of fog before 9am, then a chance of showers and thunderstorms. Some of the storms could be severe. Mostly sunny, with a high near 86. Southwest wind 0 to 3 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
Thursday Night |
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Temperature: 63°F Wind Speed: 1 mph Wind Direction: E Forecast: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 9pm, then areas of fog and a chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 63. East wind around 1 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Friday |
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Temperature: 83°F Wind Speed: 2 mph Wind Direction: NW Forecast: Areas of fog before 11am. Mostly sunny, with a high near 83. Northwest wind around 2 mph. |
Friday Night |
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Temperature: 58°F Wind Speed: 1 mph Wind Direction: N Forecast: Areas of fog after 9pm. Mostly clear, with a low around 58. North wind around 1 mph. |
Saturday |
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Temperature: 83°F Wind Speed: 0 mph Wind Direction: Forecast: Areas of fog before 8am. Sunny, with a high near 83. |
Saturday Night |
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Temperature: 61°F Wind Speed: 0 mph Wind Direction: Forecast: Mostly clear, with a low around 61. |
Sunday |
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Temperature: 86°F Wind Speed: 0 to 3 mph Wind Direction: W Forecast: Mostly sunny, with a high near 86. |
Sunday Night |
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Temperature: 66°F Wind Speed: 1 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 66. |
Monday |
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Temperature: 87°F Wind Speed: 0 to 5 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 87. |
Monday Night |
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Temperature: 68°F Wind Speed: 2 mph Wind Direction: NW Forecast: Mostly cloudy, with a low around 68. |
Tuesday |
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Temperature: 90°F Wind Speed: 0 to 5 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. |
Tuesday Night |
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Temperature: 69°F Wind Speed: 2 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. |
Wednesday |
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Temperature: 88°F Wind Speed: 0 to 5 mph Wind Direction: W Forecast: A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. |

