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Union, IA 7-Day Night Weather Forecast
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Union, IA Weather Forecast
Union, IA Weather Forecast Date: 144 AM CDT Tue Sep 15 2026
The area/counties/county of: Hardin, including the cities of: Iowa Falls, Eldora, and Ackley.or toggle through each period.
Rest of Tonight... Showers with a chance of thunderstorms. Some thunderstorms May produce heavy rainfall. Near steady temperature in the upper 60s. Southwest winds 5 to 10 mph. Chance of rain near 100%.
Tuesday... Mostly cloudy. Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Highs in the lower 70s. Northwest winds 5 to 10 mph. Chance of rain 90%.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.
Wednesday... Partly sunny with a chance of showers. A slight chance of thunderstorms. Some thunderstorms May produce heavy rainfall in the morning. Highs in the upper 60s. East winds 5 to 10 mph. Chance of rain 50%.
Wednesday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows around 60. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 70%.
Thursday... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 50%.
Thursday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Chance of rain 70%.
Friday... A chance of thunderstorms. Showers. Highs in the upper 70s. Chance of rain 80%.
Friday Night... A chance of thunderstorms. Showers. Lows in the mid 60s. Chance of rain 90%.
Saturday... Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 60%.
Saturday Night... Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 50s. Chance of rain 40%.
Sunday... Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 20%.
Sunday Night... Mostly cloudy in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 50s. Chance of rain 20%.
POP = Probability of Precipitation
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