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Alton, IL
 34° 
Last Updated on Mar 28 2024, 1:35 am CDT
Current ConditionsFair
Relative Humidity87%
WindCalm
Pressure30.20 mb
Dewpoint30.2 F (-1.0 C)
Visibility10.00 miles

7-Day Forecast

Today
Sunny
High: 65°
Sunny with a high near 65.
Light and variable wind becoming
southwest 8 to 13 mph in the morning.


Tonight
Mostly Clear
Low: 45°
Mostly clear with a low around 45.
South wind around 7 mph.


Friday
Mostly Sunny
High: 73°
Mostly sunny with a high near 73.
Light south wind increasing
to 11 to 16 mph in the morning.
Winds could gust as high as 25 mph.


Friday Night
Chance Showers
Low: 57°
A 30% chance of showers.
Mostly cloudy with a low around 57.
South wind 14 to 16 mph
with gusts as high as 25 mph.


Saturday
Partly Sunny then Slight Chance Showers
High: 76°
A 20% chance of showers after 1pm.
Partly sunny with a high near 76.
West wind 10 to 13 mph
with gusts as high as 20 mph.


Saturday Night
Chance Showers
Low: 51°
A chance of showers with thunderstorms also possible after 4am.
Mostly cloudy with a low around 51.
Chance of precipitation is 30%.


Sunday
Chance T-storms
High: 75°
A 50% chance of showers and thunderstorms.
Partly sunny with a high near 75.


Sunday Night
Chance T-storms
Low: 60°
A 50% chance of showers and thunderstorms.
Mostly cloudy with a low around 60.


Monday
Showers
High: 78°
Showers and possibly a thunderstorm.
High near 78.
Chance of precipitation is 80%.


Monday Night
Showers Likely and Breezy
Low: 50°
Showers likely and possibly a thunderstorm before 1am,
then a chance of showers and thunderstorms after 1am.
Mostly cloudy with a low around 50.
Breezy.
Chance of precipitation is 70%.


Tuesday
Slight Chance T-storms
High: 62°
A 20% chance of showers and thunderstorms.
Partly sunny with a high near 62.


Tuesday Night
Partly Cloudy
Low: 38°
Partly cloudy with a low around 38.


Wednesday
Sunny
High: 59°
Sunny with a high near 59.


Source: National Weather Service








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