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I-35 weather conditions near Johnston, Iowa

       Seasoned Weather Conditions

      

       Current Weather Conditions

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7 day weather forecast

  • Current condition: A Few Clouds 75°F 2025-07-11T00:35:00-05:00
  • Overnight 2025-07-11, Severe Thunderstorms. Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. Low around 69. Southwest wind around 5 mph becoming northeast. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
  • Friday 2025-07-11, Heavy Rain. Showers and thunderstorms likely, mainly after 10am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 82. Southeast wind around 7 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
  • Friday Night 2025-07-11, Chance T-storms then Slight Chance T-storms. A 50 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 67. North wind around 6 mph becoming light and variable. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
  • Saturday 2025-07-12, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind 6 to 8 mph.
  • Saturday Night 2025-07-12, Mostly Clear. Mostly clear, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
  • Sunday 2025-07-13, Sunny. Sunny, with a high near 85.
  • Sunday Night 2025-07-13, Mostly Clear. Mostly clear, with a low around 66.
  • Monday 2025-07-14, Sunny. Sunny, with a high near 90.
  • Monday Night 2025-07-14, Partly Cloudy. Partly cloudy, with a low around 71.
  • Tuesday 2025-07-15, Partly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90.
  • Tuesday Night 2025-07-15, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
  • Wednesday 2025-07-16, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a high near 80.
  • Wednesday Night 2025-07-16, Mostly Cloudy. Mostly cloudy, with a low around 60.
  • Thursday 2025-07-17, Mostly Sunny. Mostly sunny, with a high near 76.





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