| NWS Forecast for: Johnston IA Issued by: National Weather Service Des Moines, IA Last Update: 6:21 am CST Dec 8, 2025 | |
| Today: Mostly cloudy, with a high near 29. Wind chill values as low as zero. South wind 6 to 9 mph, with gusts as high as 18 mph. Tonight: Cloudy, then gradually becoming partly cloudy, with a temperature rising to around 31 by 5am. South wind 6 to 8 mph becoming west after midnight. Tuesday: Partly sunny, with a high near 41. South southwest wind 6 to 13 mph, with gusts as high as 28 mph. Tuesday Night: Mostly cloudy, with a low around 24. Windy, with a southwest wind 15 to 24 mph becoming northwest after midnight. Winds could gust as high as 38 mph. Wednesday: Mostly cloudy, with a high near 30. Windy, with a northwest wind 18 to 23 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 33 mph. Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15. Thursday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 25. Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 9. Friday: Mostly cloudy, with a high near 17. Friday Night: Mostly cloudy, with a low around -2. Saturday: Mostly cloudy and cold, with a high near 9. Saturday Night: Mostly cloudy, with a low around -1. Sunday: Mostly sunny, with a high near 20. | |
| Johnston IA 41.67°N 93.69°W | |
Visit your local NWS office at: https://www.weather.gov/desmoines |