ALTON, IL 62002 Weather Forecast & Current Conditions

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ALTON, IL
Current Weather

11:55 PM CDT SEP 6, 2025
Scattered Clouds
57°F
Feels Like: 58°F
Dewpoint: 48°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: NNW at 3 mph
Pressure: 30.17 inches
Last 72 hours

Local Area Snow Depth

Illinois Current Weather

Illinois MOS Forecast Weather


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(Automated weather data from NWS/FAA)
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ALTON, IL 62002
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
OVERNIGHT
Mostly clear. Lows in the upper 40s. North winds around 5 mph.
SUNDAY
Sunny. Highs in the mid 70s. North winds 5 to 10 mph.
SUNDAY NIGHT
Clear. Lows in the mid 40s. Northeast winds around 5 mph.
MONDAY
Sunny. Highs in the upper 70s. Southeast winds around 5 mph.
MONDAY NIGHT
Mostly clear. Lows around 50. Southeast winds around 5 mph.
TUESDAY AND TUESDAY NIGHT
Mostly clear. Highs in the lower 80s. Lows in the upper 50s.
WEDNESDAY AND WEDNESDAY NIGHT
Mostly clear. Highs in the upper 80s. Lows in the lower 60s.
THURSDAY
Sunny. Highs in the lower 90s.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
Mostly clear. Lows in the lower 60s. Highs around 90.
SATURDAY
Mostly sunny. Highs in the lower 90s.

Visible Weather Satellite
ALTON, IL 62002
Infrared Weather Satellite
ALTON, IL 62002
NEXRAD Weather Radar
ALTON, IL 62002

ALTON, IL 3 hourly weather forecast

weather forecast created  6:00 PM MDT  9/ 6/2025
Sunday
7 SEP 2025
ALTON, IL 62002 weather forecast Day 1, 0 hours 1 AM 55° 55° Clear 0%

0% Thunder
( 0% severe)
N   3 72% 46°
Low 47° ALTON, IL 62002 weather forecast Day 1, 3 hours 4 AM 50° 50° Clear N   2 80% 44°
High 71° ALTON, IL 62002 weather forecast Day 1, 6 hours 7 AM 48° 47° Clear 0%

0% Thunder
( 0% severe)
NNW   3 83% 43°

Clear



ALTON, IL 62002 weather forecast Day 1, 9 hours 10 AM 64° 64° Clear N   6 50% 45°
ALTON, IL 62002 weather forecast Day 1, 12 hours 1 PM 69° 69° Clear 0%

0% Thunder
( 0% severe)
NNW   8 37% 42°
ALTON, IL 62002 weather forecast Day 1, 15 hours 4 PM 70° 70° Clear N   7 35% 41°
ALTON, IL 62002 weather forecast Day 1, 18 hours 7 PM 66° 66° Clear 0%

0% Thunder
( 1% severe)
N   5 45% 44°
ALTON, IL 62002 weather forecast Day 1, 21 hours 10 PM 55° 55° Clear NE   1 72% 46°
Monday
8 SEP 2025
ALTON, IL 62002 weather forecast Day 2, 0 hours 1 AM 50° 50° Clear 0%

0% Thunder
( 1% severe)
ENE   1 80% 44°
Low 46° ALTON, IL 62002 weather forecast Day 2, 3 hours 4 AM 47° 46° Clear E   1 86% 43°
High 75° ALTON, IL 62002 weather forecast Day 2, 6 hours 7 AM 47° 46° Clear 0%

0% Thunder
( 0% severe)
E   1 83% 42°

Clear



ALTON, IL 62002 weather forecast Day 2, 9 hours 10 AM 65° 65° Clear SE   6 50% 46°
ALTON, IL 62002 weather forecast Day 2, 12 hours 1 PM 72° 72° Clear 0%

0% Thunder
( 1% severe)
SE   6 37% 44°
ALTON, IL 62002 weather forecast Day 2, 15 hours 4 PM 74° 74° Partly Cloudy SE   7 33% 43°
ALTON, IL 62002 weather forecast Day 2, 18 hours 7 PM 68° 68° Partly Cloudy 0%

0% Thunder
( 1% severe)
ESE   6 45% 46°
ALTON, IL 62002 weather forecast Day 2, 21 hours 10 PM 58° 58° Partly Cloudy ESE   5 69% 48°

ALTON, IL extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 43° Low 47° Low 50° Low 54° Low 58°
High 77° High 83° High 88° High 85° High 85°
ALTON, IL 62002 weather forecast Day 3 ALTON, IL 62002 weather forecast Day 4 ALTON, IL 62002 weather forecast Day 5 ALTON, IL 62002 weather forecast Day 6 ALTON, IL 62002 weather forecast Day 7
Clear
3% Rain
Clear
5% Rain
Clear
9% Rain
Clear
10% Rain
Clear
12% Rain
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