EAST ALTON, IL 62024 Weather Forecast & Current Conditions

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ALTON, IL
Current Weather

7:50 AM CDT JUN 12, 2026
Clear
72°F
Feels Like: 72°F
Dewpoint: 61°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: NW at 5 mph
Pressure: 30.01 inches
Last 72 hours

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EAST ALTON, IL 62024
Weather Forecast

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TODAY
Sunny, cooler with highs in the lower 80s. Northwest winds around 5 mph.
TONIGHT
Mostly clear. Lows in the lower 60s. Northeast winds around 5 mph, becoming southeast after midnight.
SATURDAY
Mostly sunny with a slight chance of showers and thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 50 percent.
SATURDAY NIGHT
Showers with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 60s. South winds 5 to 10 mph, becoming west with gusts up to 20 mph after midnight. Chance of rain 90 percent.
SUNDAY
Mostly sunny. Less humid with highs in the mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
SUNDAY NIGHT THROUGH MONDAY NIGHT
Partly cloudy. Lows in the upper 50s. Highs in the upper 70s.
TUESDAY
Sunny. Highs in the lower 80s.
TUESDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 30 percent.
WEDNESDAY
Mostly sunny. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
WEDNESDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 70 percent.
THURSDAY
Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

Visible Weather Satellite
EAST ALTON, IL 62024
Infrared Weather Satellite
EAST ALTON, IL 62024
NEXRAD Weather Radar
EAST ALTON, IL 62024

ALTON, IL 3 hourly weather forecast

weather forecast created  6:00 PM MDT  6/11/2026
Friday
12 JUN 2026
EAST ALTON, IL 62024 weather forecast Day 1, 0 hours 1 AM 70° 70° Mostly Cloudy 8%

0% Thunder
( 6% severe)
NW   7 87% 66°
Low 64° EAST ALTON, IL 62024 weather forecast Day 1, 3 hours 4 AM 65° 65° Partly Cloudy NW   7 87% 61°
High 83° EAST ALTON, IL 62024 weather forecast Day 1, 6 hours 7 AM 65° 65° Partly Cloudy 0%

0% Thunder
( 1% severe)
NW   3 84% 60°

Clear



EAST ALTON, IL 62024 weather forecast Day 1, 9 hours 10 AM 74° 74° Clear WNW   6 57% 58°
EAST ALTON, IL 62024 weather forecast Day 1, 12 hours 1 PM 79° 80° Clear 0%

0% Thunder
( 3% severe)
NW   7 47% 57°
EAST ALTON, IL 62024 weather forecast Day 1, 15 hours 4 PM 82° 82° Clear NW   7 43% 57°
EAST ALTON, IL 62024 weather forecast Day 1, 18 hours 7 PM 81° 82° Clear 0%

0% Thunder
( 2% severe)
N   3 49% 60°
EAST ALTON, IL 62024 weather forecast Day 1, 21 hours 10 PM 71° 71° Partly Cloudy   CALM 68% 60°
Saturday
13 JUN 2026
EAST ALTON, IL 62024 weather forecast Day 2, 0 hours 1 AM 68° 68° Clear 9%

0% Thunder
( 6% severe)
  CALM 76% 60°
Low 63° EAST ALTON, IL 62024 weather forecast Day 2, 3 hours 4 AM 66° 66° Partly Cloudy SSE   2 78% 59°
High 83° EAST ALTON, IL 62024 weather forecast Day 2, 6 hours 7 AM 68° 68° Mostly Cloudy 28%
RAIN
.5–1 in
0% Thunder
( 29% severe)
S   7 78% 61°

Mostly Cloudy

Rain Likely

EAST ALTON, IL 62024 weather forecast Day 2, 9 hours 10 AM 76° 78° Mostly Cloudy S   10 66% 64°
EAST ALTON, IL 62024 weather forecast Day 2, 12 hours 1 PM 80° 82° Mostly Cloudy 54%
RAIN
***
0% Thunder
( 42% severe)
S   12 62% 66°
EAST ALTON, IL 62024 weather forecast Day 2, 15 hours 4 PM 81° 84° Mostly Cloudy S   13 65% 68°
EAST ALTON, IL 62024 weather forecast Day 2, 18 hours 7 PM 79° 82° Mostly Cloudy 60%
RAIN
***
0% Thunder
( 40% severe)
S   10 72% 69°
EAST ALTON, IL 62024 weather forecast Day 2, 21 hours 10 PM 73° 73° Mostly Cloudy SW   7 87% 69°

ALTON, IL extended weather forecast

Sunday
14 JUN 2026
Monday
15 JUN 2026
Tuesday
16 JUN 2026
Wednesday
17 JUN 2026
Thursday
18 JUN 2026
Low 64° Low 58° Low 55° Low 63° Low 72°
High 75° High 77° High 80° High 85° High 86°
EAST ALTON, IL 62024 weather forecast Day 3 EAST ALTON, IL 62024 weather forecast Day 4 EAST ALTON, IL 62024 weather forecast Day 5 EAST ALTON, IL 62024 weather forecast Day 6 EAST ALTON, IL 62024 weather forecast Day 7
Mostly Cloudy
42% Rain
Mostly Cloudy
26% Rain
Mostly Cloudy
24% Rain
Partly Cloudy
32% Rain
Mostly Cloudy
51% Rain
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