| NWS Forecast for: Belvidere IL Issued by: National Weather Service Chicago, IL Last Update: 4:51 am CDT Sep 9, 2026 | |
Today: Showers and possibly a thunderstorm before 10am, then a chance of showers between 10am and noon. High near 80. Southwest wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tonight: Partly cloudy, with a low around 59. West wind around 5 mph. Thursday: Mostly sunny, with a high near 76. North wind around 5 mph, with gusts as high as 10 mph. Thursday Night: Mostly clear, with a low around 51. Calm wind. Friday: Sunny, with a high near 80. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 58. Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 40%. Saturday Night: Mostly cloudy, with a low around 58. Sunday: A chance of showers after 1pm. Partly sunny, with a high near 80. Sunday Night: A chance of showers. Mostly cloudy, with a low around 63. Monday: A chance of showers. Mostly cloudy, with a high near 85. Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Tuesday: A chance of showers. Partly sunny, with a high near 77. | |
| Belvidere IL 42.25°N 88.86°W | |
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