| NWS Forecast for: Johnston IA Issued by: National Weather Service Des Moines, IA Last Update: 10:46 pm CST Dec 4, 2025 |  |
| Overnight: Mostly cloudy, with a steady temperature around 17. Wind chill values as low as 5. South wind around 9 mph. Friday: Partly sunny, with a high near 34. Wind chill values as low as 5. South wind 7 to 9 mph becoming west in the afternoon. Friday Night: Mostly cloudy, with a low around 19. West wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Saturday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 28. Calm wind becoming east southeast 5 to 9 mph in the morning. Little or no snow accumulation expected. Saturday Night: Snow, mainly before midnight. Low around 12. East southeast wind around 9 mph becoming north northeast after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible. Sunday: Partly sunny, with a high near 18. Sunday Night: Mostly cloudy, with a low around -4. Monday: Partly sunny, with a high near 27. Monday Night: Mostly cloudy, with a low around 19. Tuesday: Partly sunny, with a high near 35. Tuesday Night: A 30 percent chance of rain. Cloudy, with a low around 24. Wednesday: Mostly cloudy, with a high near 34. Wednesday Night: Mostly cloudy, with a low around 11. Thursday: Mostly cloudy, with a high near 25. | |
| Johnston IA 41.67°N 93.69°W | |
Visit your local NWS office at: https://www.weather.gov/desmoines |
