| NWS Forecast for: Quincy IL Issued by: National Weather Service Saint Louis, MO Last Update: 7:46 pm CDT Oct 9, 2026 | |
| Overnight: Clear, with a low around 60. South wind 6 to 8 mph. Saturday: Increasing clouds, with a high near 84. Southeast wind around 7 mph. Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Southeast wind 5 to 7 mph becoming calm after midnight. Sunday: Sunny, with a high near 84. Light south wind. Sunday Night: Mostly clear, with a low around 67. Southeast wind 3 to 7 mph. Columbus Day: Sunny, with a high near 89. Monday Night: Mostly clear, with a low around 68. Tuesday: Sunny, with a high near 81. Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 61. Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 60%. Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%. Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Thursday Night: A 30 percent chance of showers. Partly cloudy, with a low around 55. Friday: Mostly sunny, with a high near 65. | |
| Quincy IL 39.93°N 91.38°W (Elev. 650 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |