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Alton, IL
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64°
Last Updated on Aug 17 2022, 3:55 am CDT
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| Current Conditions | Fair | | Relative Humidity | 93% | | Wind | Calm | | Pressure | 30.06 mb | | Dewpoint | 62.1 F (16.7 C) | | Visibility | 10.00 miles |
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7-Day Forecast
Today
Sunny
High: 84°
Sunny with a high near 84.
Light northeast wind increasing
to 5 to 9 mph in the morning.
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Tonight
Mostly Clear
Low: 61°
Mostly clear with a low around 61.
North wind 3 to 6 mph.
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Thursday
Sunny
High: 85°
Sunny with a high near 85.
Calm wind becoming
north around 5 mph in the afternoon.
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Thursday Night
Mostly Clear
Low: 64°
Mostly clear with a low around 64.
Light east wind.
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Friday
Sunny
High: 85°
Sunny with a high near 85.
Calm wind becoming
south around 6 mph in the afternoon.
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Friday Night
Mostly Clear then Slight Chance T-storms
Low: 66°
A 20% chance of showers and thunderstorms after 1am.
Mostly clear with a low around 66.
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Saturday
Chance T-storms
High: 86°
A 40% chance of showers and thunderstorms, mainly after 1pm.
Mostly sunny with a high near 86.
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Saturday Night
Chance T-storms
Low: 67°
A 40% chance of showers and thunderstorms.
Partly cloudy with a low around 67.
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Sunday
Chance Showers then Chance T-storms
High: 83°
A 40% chance of showers and thunderstorms.
Mostly sunny with a high near 83.
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Sunday Night
Slight Chance T-storms
Low: 67°
A slight chance of showers and thunderstorms.
Partly cloudy with a low around 67.
Chance of precipitation is 20%.
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Monday
Slight Chance Showers then Slight Chance T-storms
High: 83°
A 20% chance of showers and thunderstorms.
Mostly sunny with a high near 83.
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Monday Night
Partly Cloudy
Low: 67°
Partly cloudy with a low around 67.
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Tuesday
Slight Chance Showers then Slight Chance T-storms
High: 84°
A 20% chance of showers and thunderstorms.
Mostly sunny with a high near 84.
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Source: National Weather Service
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