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Illinois
Last updated: Fr, 19 Apr, 13:14 BST
Note: Temperature forecast is minimum temperature at ground/road surface - NOT air temperature.
See also Driving in winter.
| Key to WeatherOnline's road forecast symbols showing the effects of the weather forecast on road conditions. | |||
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dry roads |
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damp roads |
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wet roads |
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aquaplaning |
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hard-packed snow |
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freezing rain/moisture |
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hoar frost |
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black ice |
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fog | ||
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