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Alton, IL
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70°
Last Updated on Aug 21 2018, 11:55 pm CDT
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| Current Conditions | Fair | | Relative Humidity | 86% | | Wind | Northwest at 5.8 MPH
(5 KT) | | Pressure | 30.09 mb | | Dewpoint | 65.3 F (18.5 C) | | Visibility | 10.00 miles |
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7-Day Forecast
Overnight
Mostly Cloudy
Low: 63°
Mostly cloudy with a low around 63.
Northwest wind around 7 mph.
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Wednesday
Sunny
High: 80°
Sunny with a high near 80.
North wind around 9 mph.
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Wednesday Night
Clear
Low: 57°
Clear with a low around 57.
North wind around 5 mph becoming calm in the evening.
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Thursday
Increasing Clouds
High: 80°
Increasing clouds with a high near 80.
Calm wind becoming
south 5 to 8 mph in the morning.
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Thursday Night
Slight Chance T-storms then Chance T-storms
Low: 63°
A 50% chance of showers and thunderstorms, mainly after 1am.
Mostly cloudy with a low around 63.
Southeast wind around 8 mph.
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Friday
T-storms Likely
High: 81°
Showers and thunderstorms likely, mainly before 1pm.
Mostly cloudy with a high near 81.
Chance of precipitation is 70%.
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Friday Night
Chance T-storms
Low: 69°
A 40% chance of showers and thunderstorms.
Mostly cloudy with a low around 69.
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Saturday
Slight Chance T-storms
High: 91°
A 20% chance of showers and thunderstorms before 1pm.
Mostly sunny with a high near 91.
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Saturday Night
Mostly Clear
Low: 73°
Mostly clear with a low around 73.
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Sunday
Mostly Sunny
High: 94°
Mostly sunny with a high near 94.
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Sunday Night
Mostly Clear
Low: 73°
Mostly clear with a low around 73.
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Monday
Sunny
High: 92°
Sunny with a high near 92.
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Monday Night
Mostly Clear
Low: 73°
Mostly clear with a low around 73.
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Tuesday
Sunny
High: 90°
Sunny with a high near 90.
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Source: National Weather Service
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