| NWS Forecast for: Whiteside County Issued by: National Weather Service Quad Cities, IA/IL Last Update: 157 AM CDT Thu Jul 23 2026 |  |
| Rest Of Tonight: Clear. Near steady temperature in the mid 50s. Light and variable winds. Thursday: Mostly sunny. Highs in the upper 70s. South winds around 5 mph. Thursday Night: Mostly cloudy. Lows in the upper 50s. Southeast winds around 5 mph in the evening, becoming light and variable. Friday: Partly sunny. Highs in the upper 70s. South winds 5 to 10 mph. Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. South winds 5 to 10 mph. Saturday: Partly sunny. Highs in the mid 80s. Saturday Night: Mostly clear. Lows in the upper 60s. Sunday Through Monday: Partly cloudy. Hot. Highs in the lower 90s. Lows in the lower 70s. Heat index values up to 110. Monday Night: Mostly clear. Lows around 70. Heat index values up to 105 early in the evening. Tuesday: Mostly sunny. Hot with highs around 90. Tuesday Night And Wednesday: Mostly clear. Lows in the mid 60s. Highs in the upper 80s. | |
| Zone Forecast: Whiteside County | |
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