NWS Forecast for Johnston IA

National Weather Service Forecast for: Johnston IA
Issued by: National Weather Service Des Moines, IA

Updated: 3:05 pm CST Dec 23, 2024

Tonight Mostly Cloudy then Patchy Fog	Tuesday Patchy Fog then Mostly Cloudy	Tuesday Night Mostly Cloudy	Christmas Day Patchy Drizzle	Wednesday Night Patchy Drizzle then Cloudy	Thursday Cloudy	Thursday Night Chance Rain	Friday Rain Likely	Friday Night Chance Rain then Mostly Cloudy
Lo 25 °F	Hi 37 °F	Lo 27 °F	Hi 39 °F	Lo 32 °F	Hi 45 °F	Lo 40 °F	Hi 50 °F	Lo 39 °F

Hazardous Weather Outlook

Tonight	Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 25. North northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday	Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 37. Calm wind.
Tuesday Night	Mostly cloudy, with a low around 27. Calm wind.
Christmas Day	Patchy drizzle after 9am. Mostly cloudy, with a high near 39. Calm wind becoming east southeast around 6 mph in the morning.
Wednesday Night	Patchy drizzle before midnight. Cloudy, with a low around 32. East wind around 5 mph becoming calm in the evening.
Thursday	Cloudy, with a high near 45.
Thursday Night	A 40 percent chance of rain. Cloudy, with a low around 40.
Friday	Rain likely, mainly after noon. Cloudy, with a high near 50. Chance of precipitation is 60%.
Friday Night	A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 39.
Saturday	A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Saturday Night	Mostly cloudy, with a low around 33.
Sunday	Mostly sunny, with a high near 48.
Sunday Night	Partly cloudy, with a low around 30.
Monday	Partly sunny, with a high near 45.

Forecast from NOAA-NWS for Johnston IA.