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Alton, IL
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28°
Last Updated on Feb 19 2020, 2:55 am CST
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| Current Conditions | Fair | | Relative Humidity | 91% | | Wind | Calm | | Pressure | 30.49 mb | | Dewpoint | 25.2 F (-3.8 C) | | Visibility | 10.00 miles |
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7-Day Forecast
Overnight
Mostly Clear
Low: 23°
Mostly clear with a low around 23.
North wind 3 to 6 mph.
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Wednesday
Sunny
High: 41°
Sunny with a high near 41.
Northeast wind 7 to 9 mph.
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Wednesday Night
Cloudy
Low: 22°
Cloudy with a low around 22.
North wind 8 to 10 mph.
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Thursday
Becoming Sunny
High: 33°
Mostly cloudy through mid morning,
then gradual clearing with a high near 33.
North wind 8 to 14 mph.
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Thursday Night
Clear
Low: 18°
Clear with a low around 18.
North wind 5 to 9 mph becoming light after midnight.
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Friday
Sunny
High: 40°
Sunny with a high near 40.
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Friday Night
Clear
Low: 26°
Clear with a low around 26.
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Saturday
Sunny
High: 50°
Sunny with a high near 50.
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Saturday Night
Chance Rain
Low: 36°
A 40% chance of rain, mainly after midnight.
Mostly cloudy with a low around 36.
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Sunday
Rain Likely
High: 45°
Rain likely, mainly after noon.
Cloudy with a high near 45.
Chance of precipitation is 60%.
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Sunday Night
Rain Likely
Low: 39°
Rain likely.
Cloudy with a low around 39.
Chance of precipitation is 60%.
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Monday
Chance Rain
High: 47°
A 40% chance of rain.
Mostly cloudy with a high near 47.
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Monday Night
Mostly Cloudy
Low: 36°
Mostly cloudy with a low around 36.
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Tuesday
Mostly Cloudy then Slight Chance Rain
High: 50°
A 20% chance of rain.
Mostly cloudy with a high near 50.
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Source: National Weather Service
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