| NWS Forecast for: Johnson County Issued by: National Weather Service Quad Cities, IA/IL Last Update: 831 PM CDT Sat Aug 15 2026 |  |
Tonight: Mostly cloudy with a chance of thunderstorms. A chance of showers. Lows in the lower 70s. West winds around 5 mph. Chance of rain 50 percent. Sunday: Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph. Chance of rain 20 percent. Sunday Night: Mostly clear. Humid with lows in the lower 60s. Northwest winds 5 to 10 mph. Monday: Sunny with highs in the lower 80s. Northwest winds around 5 mph. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 60s. Southwest winds around 5 mph. Tuesday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. Tuesday Night: Showers with a chance of thunderstorms in the evening, then showers after midnight. Locally heavy rainfall possible in the evening. Lows in the mid 60s. Chance of rain 80 percent. Wednesday: Partly sunny. Highs in the upper 70s. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Thursday: Partly sunny. Highs in the upper 70s. Thursday Night Through Saturday: Partly cloudy. Lows in the lower 60s. Highs around 80. | |
| Zone Forecast: Johnson County | |
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