7-Day Forecast Summary
7-Day Detailed Weather Forecast for Johnstown
Overnight |
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Temperature: 64°F Wind Speed: 6 mph Wind Direction: SW Forecast: A slight chance of rain showers between 3am and 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Sunday |
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Temperature: 78°F Wind Speed: 7 to 16 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers and thunderstorms likely between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms. Mostly cloudy. High near 78, with temperatures falling to around 71 in the afternoon. Southwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible. |
Sunday Night |
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Temperature: 51°F Wind Speed: 7 to 16 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 51. Northwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday |
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Temperature: 70°F Wind Speed: 8 mph Wind Direction: NW Forecast: Sunny, with a high near 70. Northwest wind around 8 mph. |
Monday Night |
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Temperature: 52°F Wind Speed: 2 to 7 mph Wind Direction: W Forecast: Mostly clear, with a low around 52. West wind 2 to 7 mph. |
Tuesday |
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Temperature: 74°F Wind Speed: 3 to 13 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 74. |
Tuesday Night |
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Temperature: 57°F Wind Speed: 7 to 12 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 50%. |
Wednesday |
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Temperature: 78°F Wind Speed: 9 to 13 mph Wind Direction: SW Forecast: A chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%. |
Wednesday Night |
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Temperature: 65°F Wind Speed: 10 to 25 mph Wind Direction: S Forecast: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 90%. |
Thursday |
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Temperature: 80°F Wind Speed: 25 mph Wind Direction: SW Forecast: Showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 90%. |
Thursday Night |
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Temperature: 59°F Wind Speed: 6 to 22 mph Wind Direction: W Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%. |
Juneteenth |
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Temperature: 76°F Wind Speed: 6 to 13 mph Wind Direction: W Forecast: A slight chance of rain showers before 8am. Mostly sunny, with a high near 76. |
Friday Night |
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Temperature: 58°F Wind Speed: 5 to 12 mph Wind Direction: W Forecast: Partly cloudy, with a low around 58. |
Saturday |
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Temperature: 78°F Wind Speed: 5 to 15 mph Wind Direction: W Forecast: Sunny, with a high near 78. |

