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Alton, IL
 73° 
Last Updated on Mar 3 2024, 2:50 pm CST
Current ConditionsFair and Breezy
Relative Humidity44%
Windfrom the South at 23.0 gusting to 39.1 MPH
(20 gusting to 34 KT)
Pressure29.76 mb
Dewpoint50.0 F (10.0 C)
Visibility10.00 miles

7-Day Forecast

Tonight
Partly Cloudy
Low: 54°
Partly cloudy with a low around 54.
South wind 7 to 17 mph
with gusts as high as 29 mph.


Monday
Mostly Sunny then Mostly Sunny and Breezy
High: 79°
Mostly sunny with a high near 79.
Breezy with a south wind 8 to 13 mph increasing
to 15 to 20 mph in the afternoon.
Winds could gust as high as 31 mph.


Monday Night
Showers
Low: 56°
A chance of showers and thunderstorms,
then showers and possibly a thunderstorm after 8pm.
Low around 56.
South wind 7 to 15 mph
with gusts as high as 24 mph.
Chance of precipitation is 80%.


Tuesday
Chance T-storms then Chance Showers
High: 65°
A chance of showers and thunderstorms before 9am,
then a chance of rain
between 9am and noon,
then a chance of showers and thunderstorms after noon.
Mostly cloudy with a high near 65.
North wind 7 to 10 mph.
Chance of precipitation is 30%.


Tuesday Night
Slight Chance Rain
Low: 44°
A 20% chance of rain.
Mostly cloudy with a low around 44.
North wind around 10 mph.


Wednesday
Partly Sunny
High: 61°
Partly sunny with a high near 61.


Wednesday Night
Mostly Cloudy then Slight Chance Rain
Low: 43°
A 20% chance of rain after midnight.
Mostly cloudy with a low around 43.


Thursday
Chance Rain
High: 61°
A 30% chance of rain, mainly after noon.
Mostly cloudy with a high near 61.


Thursday Night
Rain
Low: 49°
Rain.
Low around 49.
Chance of precipitation is 80%.


Friday
Showers Likely
High: 59°
Showers likely and possibly a thunderstorm.
Mostly cloudy with a high near 59.
Chance of precipitation is 70%.


Friday Night
Chance Showers
Low: 41°
A 50% chance of showers and thunderstorms.
Mostly cloudy with a low around 41.


Saturday
Chance Rain and Breezy
High: 51°
A 40% chance of rain.
Partly sunny with a high near 51.
Breezy.


Saturday Night
Slight Chance Rain
Low: 35°
A 20% chance of rain.
Partly cloudy with a low around 35.


Sunday
Sunny
High: 53°
Sunny with a high near 53.


Source: National Weather Service








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