I-35 weather conditions near Johnston, Iowa

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 70°F 2025-07-11T05:55:00-05:00
• Today 2025-07-11, Heavy Rain. Showers and thunderstorms likely, mainly before 1pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 86. South southeast wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
• Tonight 2025-07-11, T-storms Likely. Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 67. North wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
• Saturday 2025-07-12, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1pm. 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. Calm wind becoming south southwest around 5 mph.
• 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 T-storms. A 40 percent chance of showers and thunderstorms. 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.