National Weather Service Forecast for:
Crystal Lake IL Issued by: National Weather Service Chicago, IL |
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Updated: 3:07 pm CDT Jul 12, 2025 | ||||||||||||||||||
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This Afternoon |
A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 82. West wind around 10 mph, with gusts as high as 15 mph. |
Tonight |
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 61. West northwest wind 5 to 10 mph. |
Sunday |
Mostly sunny, with a high near 82. Light west wind increasing to 5 to 10 mph in the morning. |
Sunday Night |
Mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening. |
Monday |
Sunny, with a high near 87. Southwest wind 5 to 10 mph. |
Monday Night |
Mostly clear, with a low around 68. |
Tuesday |
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. |
Tuesday Night |
A chance of showers after 1am. Partly cloudy, with a low around 69. |
Wednesday |
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. |
Wednesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. |
Thursday |
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. |
Thursday Night |
Mostly cloudy, with a low around 62. |
Friday |
Partly sunny, with a high near 78. |
Forecast from NOAA-NWS for Crystal Lake IL.