Weather in Johnston, Iowa, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Johnston
Overnight |
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Temperature: 18°F Wind Speed: 5 mph Wind Direction: NW Forecast: Snow. Cloudy. Low around 18, with temperatures rising to around 22 overnight. Northwest wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible. |
Monday |
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Temperature: 25°F Wind Speed: 6 to 12 mph Wind Direction: NNW Forecast: A slight chance of snow before 7am, then a chance of snow showers between 7am and 8am. Partly sunny. High near 25, with temperatures falling to around 23 in the afternoon. Wind chill values as low as 7. North northwest wind 6 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. |
Monday Night |
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Temperature: 14°F Wind Speed: 2 to 6 mph Wind Direction: W Forecast: Partly cloudy, with a low around 14. Wind chill values as low as 9. West wind 2 to 6 mph. |
Tuesday |
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Temperature: 34°F Wind Speed: 3 to 13 mph Wind Direction: SSW Forecast: Sunny. High near 34, with temperatures falling to around 31 in the afternoon. Wind chill values as low as 6. South southwest wind 3 to 13 mph, with gusts as high as 21 mph. |
Tuesday Night |
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Temperature: 26°F Wind Speed: 9 mph Wind Direction: SW Forecast: Mostly clear, with a low around 26. Southwest wind around 9 mph. |
Wednesday |
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Temperature: 42°F Wind Speed: 9 to 20 mph Wind Direction: WNW Forecast: Mostly sunny, with a high near 42. |
Wednesday Night |
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Temperature: 10°F Wind Speed: 14 to 20 mph Wind Direction: NW Forecast: Mostly clear, with a low around 10. |
Thursday |
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Temperature: 22°F Wind Speed: 3 to 12 mph Wind Direction: NNW Forecast: Mostly sunny, with a high near 22. |
Thursday Night |
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Temperature: 14°F Wind Speed: 3 mph Wind Direction: WSW Forecast: Partly cloudy, with a low around 14. |
Friday |
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Temperature: 34°F Wind Speed: 3 to 9 mph Wind Direction: S Forecast: Mostly sunny, with a high near 34. |
Friday Night |
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Temperature: 24°F Wind Speed: 6 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 24. |
Saturday |
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Temperature: 43°F Wind Speed: 8 mph Wind Direction: W Forecast: Mostly sunny, with a high near 43. |
Saturday Night |
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Temperature: 29°F Wind Speed: 6 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 29. |
Sunday |
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Temperature: 47°F Wind Speed: 6 to 9 mph Wind Direction: SW Forecast: Partly sunny, with a high near 47. |