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Over 100 million face wintry cold blast early this week. Get the forecast. Chevron right

Alton, IL

31°F
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Alton

Illinois

31°
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Alton, IL Weather
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 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

10 PM

30°
RealFeel® 15°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
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rain drop 0%
Chevron down
Mostly clear

WindNW 15 mph

Air QualityExcellent

Wind Gusts29 mph

Humidity56%

Indoor Humidity28% (Very Dry)

Dew Point16° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

29°
RealFeel® 14°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindNW 16 mph

Air QualityExcellent

Wind Gusts29 mph

Humidity54%

Indoor Humidity27% (Very Dry)

Dew Point14° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

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