Weather in Johnston, Iowa, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Johnston
Overnight |
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Temperature: 61°F Wind Speed: 7 mph Wind Direction: S Forecast: Clear. Low around 61, with temperatures rising to around 64 overnight. South wind around 7 mph. |
Saturday |
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Temperature: 81°F Wind Speed: 5 to 8 mph Wind Direction: W Forecast: A chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms between 1pm and 3pm, then showers and thunderstorms likely. Mostly sunny. High near 81, with temperatures falling to around 77 in the afternoon. West wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
Saturday Night |
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Temperature: 54°F Wind Speed: 6 to 9 mph Wind Direction: NNW Forecast: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm. Partly cloudy. Low around 54, with temperatures rising to around 56 overnight. North northwest wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible. |
Sunday |
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Temperature: 72°F Wind Speed: 7 to 13 mph Wind Direction: NW Forecast: Sunny, with a high near 72. Northwest wind 7 to 13 mph, with gusts as high as 22 mph. |
Sunday Night |
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Temperature: 52°F Wind Speed: 1 to 7 mph Wind Direction: W Forecast: Partly cloudy, with a low around 52. West wind 1 to 7 mph. |
Monday |
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Temperature: 76°F Wind Speed: 3 to 8 mph Wind Direction: WNW Forecast: Sunny, with a high near 76. |
Monday Night |
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Temperature: 56°F Wind Speed: 5 to 8 mph Wind Direction: WSW Forecast: Mostly clear, with a low around 56. |
Tuesday |
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Temperature: 79°F Wind Speed: 8 to 12 mph Wind Direction: WSW Forecast: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%. |
Tuesday Night |
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Temperature: 59°F Wind Speed: 3 to 7 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 40%. |
Wednesday |
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Temperature: 82°F Wind Speed: 6 to 14 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly sunny, with a high near 82. Chance of precipitation is 60%. |
Wednesday Night |
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Temperature: 59°F Wind Speed: 7 to 12 mph Wind Direction: WNW Forecast: Showers and thunderstorms likely. Partly cloudy, with a low around 59. Chance of precipitation is 60%. |
Thursday |
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Temperature: 80°F Wind Speed: 9 mph Wind Direction: NW Forecast: A slight chance of rain showers before 1pm. Sunny, with a high near 80. |
Thursday Night |
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Temperature: 58°F Wind Speed: 2 to 7 mph Wind Direction: ESE Forecast: Mostly clear, with a low around 58. |
Juneteenth |
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Temperature: 83°F Wind Speed: 2 to 8 mph Wind Direction: S Forecast: Mostly sunny, with a high near 83. |