I-80 weather conditions near Johnston, Iowa
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 39°F 2025-10-31T23:35:00-05:00 - Tonight 2025-10-31, Increasing Clouds. Increasing clouds, with a steady temperature around 38. Southwest wind 6 to 8 mph becoming west northwest after midnight.
Saturday 2025-11-01, Slight Chance Showers. A slight chance of showers before 10am, then a slight chance of showers after 11am. Cloudy, with a high near 45. North northwest wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday Night 2025-11-01, Partly Cloudy. Partly cloudy, with a low around 30. North northwest wind around 5 mph becoming calm in the evening.
Sunday 2025-11-02, Sunny. Sunny, with a high near 53. Light south wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night 2025-11-02, Mostly Clear. Mostly clear, with a low around 38. South wind 7 to 9 mph becoming west after midnight.- Monday 2025-11-03, Sunny. Sunny, with a high near 59.
- Monday Night 2025-11-03, Partly Cloudy. Partly cloudy, with a low around 37.
Tuesday 2025-11-04, Mostly Sunny. Mostly sunny, with a high near 64.- Tuesday Night 2025-11-04, Partly Cloudy. Partly cloudy, with a low around 43.
- Wednesday 2025-11-05, Sunny. Sunny, with a high near 61.
- Wednesday Night 2025-11-05, Mostly Clear. Mostly clear, with a low around 34.
- Thursday 2025-11-06, Mostly Sunny. Mostly sunny, with a high near 58.
- Thursday Night 2025-11-06, Mostly Cloudy. Mostly cloudy, with a low around 44.
Friday 2025-11-07, Partly Sunny. Partly sunny, with a high near 58.