I-35 weather conditions near Decatur, Iowa
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: A Few Clouds 71°F 2025-06-20T02:53:00-05:00 
Overnight 2025-06-20, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 18 mph.Friday 2025-06-20, Chance T-storms and Breezy then Sunny and Windy. A 30 percent chance of showers and thunderstorms, mainly before 7am. Sunny, with a high near 94. Heat index values as high as 102. Windy, with a south southwest wind 13 to 21 mph, with gusts as high as 32 mph.
Friday Night 2025-06-20, Mostly Clear and Breezy. Mostly clear, with a low around 76. Breezy, with a south wind 18 to 20 mph, with gusts as high as 31 mph.
Saturday 2025-06-21, Sunny and Windy. Sunny, with a high near 95. Heat index values as high as 102. Windy, with a south southwest wind 20 to 24 mph, with gusts as high as 36 mph.- Saturday Night 2025-06-21, Mostly Clear and Windy. Mostly clear, with a low around 76. Windy, with a south southwest wind 17 to 21 mph, with gusts as high as 31 mph.
- Sunday 2025-06-22, Sunny and Windy. Sunny, with a high near 94. Windy.
- Sunday Night 2025-06-22, Mostly Clear and Breezy. Mostly clear, with a low around 74. Breezy.
Monday 2025-06-23, Sunny then Chance Showers. A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94.
Monday Night 2025-06-23, Chance T-storms. A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.Tuesday 2025-06-24, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Tuesday Night 2025-06-24, Chance Showers. A 40 percent chance of showers. Partly cloudy, with a low around 71.
Wednesday Night 2025-06-25, Chance T-storms. A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.Thursday 2025-06-26, Chance Showers then Chance T-storms. A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.