| NWS Forecast for: Stephenson County Issued by: National Weather Service Quad Cities, IA/IL Last Update: 251 PM CDT Tue Sep 1 2026 |  |
This Afternoon: Mostly sunny with a slight chance of showers and thunderstorms. Hot. Near steady temperature around 90. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 104. Tonight: Partly cloudy in the evening, then clearing. Patchy fog after midnight. Humid with lows in the lower 70s. South winds around 5 mph. Heat index values up to 100 early in the evening. Wednesday: Patchy fog in the morning. Sunny, hot with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 103 in the afternoon. Wednesday Night: Mostly clear. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Heat index values up to 101 early in the evening. Thursday: Mostly sunny. Humid with highs in the upper 80s. Southwest winds around 5 mph. Thursday Night: Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 50 percent. Friday: Mostly sunny. A chance of showers in the morning. Highs in the upper 80s. Chance of rain 50 percent. Friday Night: Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30 percent. Saturday And Saturday Night: Partly cloudy. Highs in the upper 80s. Lows in the upper 60s. Sunday: Partly sunny. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 40 percent. Sunday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 60s. Labor Day: Partly sunny. Highs around 80. | |
| Zone Forecast: Stephenson County | |
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