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City of Johnston, IAJohnston, IA 7-Day Night Weather Forecast
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Johnston, IA Weather Forecast
Johnston, IA Weather Forecast Date: 627 AM CST Tue Nov 03 2026
The area/counties/county of: Polk, including the city of Des Moines.or toggle through each period.
Today... Showers with a slight chance of thunderstorms. Highs in the upper 60s. South winds 5 to 10 mph, becoming west with gusts up to 20 mph this afternoon. Chance of rain near 100%.
Tonight... Cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Cooler. Less humid with lows in the upper 40s. Northwest winds 10 to 15 mph. Chance of rain 50%.
Wednesday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 30%.
Wednesday Night... Mostly cloudy. Lows in the mid 40s. West winds around 10 mph.
Thursday... Mostly cloudy. A chance of showers, mainly in the morning. Highs in the mid 50s. West winds around 10 mph. Chance of rain 30%.
Thursday Night... Mostly cloudy. Lows in the lower 40s.
Friday... Partly sunny. Highs in the lower 50s.
Friday Night... Mostly cloudy. Lows in the upper 30s.
Saturday... Partly sunny. Highs in the mid 50s.
Saturday Night... Partly cloudy. Lows in the upper 30s.
Sunday... Mostly sunny. Highs in the upper 50s.
Sunday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 30s.
POP = Probability of Precipitation
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