| NWS Forecast for: Johnson County Issued by: National Weather Service Quad Cities, IA/IL Last Update: 602 PM CDT Fri Jul 17 2026 | |
Tonight: Mostly clear. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Saturday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the lower 90s. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Heat index values up to 101. Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph. Sunday: Patchy smoke in the morning. Sunny with highs in the upper 80s. Southeast winds around 5 mph. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. Southeast winds 5 to 10 mph. Monday: Sunny, hot with highs in the mid 90s. Heat index values up to 105 in the afternoon. Monday Night: Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. Heat index values up to 105 early in the evening. Tuesday And Tuesday Night: Mostly clear. Highs in the upper 80s. Lows in the lower 60s. Wednesday And Wednesday Night: Mostly clear. Highs in the lower 80s. Lows around 60. Thursday Through Friday: Partly cloudy. Highs in the mid 80s. Lows in the lower 60s. | |
| Zone Forecast: Johnson County | |
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