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High risk of severe weather, including widespread destructive winds, in the Plains Sunday. Click for details Chevron right

Alton, IL

71°F
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Alton

Illinois

71°
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Alton, IL Weather
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3 PM

72°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 71%
Chevron down
Thunderstorms

RealFeel Shade™67°

WindE 14 mph

Air QualityUnhealthy

Max UV Index2 (Low)

Wind Gusts25 mph

Humidity76%

Indoor Humidity76% (Humid)

Dew Point64° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.05 in

Visibility10 mi

Cloud Ceiling3700 ft

4 PM

71°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 80%
Chevron down
Thunderstorms

RealFeel Shade™65°

WindNE 15 mph

Air QualityPoor

Max UV Index1 (Low)

Wind Gusts25 mph

Humidity82%

Indoor Humidity82% (Humid)

Dew Point66° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Rain0.27 in

Visibility3 mi

Cloud Ceiling2000 ft

5 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™68°

WindNE 15 mph

Air QualityPoor

Max UV Index1 (Low)

Wind Gusts21 mph

Humidity84%

Indoor Humidity84% (Humid)

Dew Point66° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

6 PM

70°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™68°

WindNNE 16 mph

Air QualityPoor

Max UV Index1 (Low)

Wind Gusts22 mph

Humidity84%

Indoor Humidity84% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3700 ft

7 PM

69°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 56%
Chevron down
Thunderstorms

RealFeel Shade™62°

WindNNW 16 mph

Air QualityPoor

Max UV Index0 (Low)

Wind Gusts27 mph

Humidity86%

Indoor Humidity86% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Rain0.27 in

Visibility3 mi

Cloud Ceiling2000 ft

8 PM

68°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Mostly cloudy

RealFeel Shade™66°

WindNNE 17 mph

Air QualityPoor

Max UV Index0 (Low)

Wind Gusts31 mph

Humidity91%

Indoor Humidity91% (Humid)

Dew Point66° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling6400 ft

9 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Mostly cloudy

WindNNE 17 mph

Air QualityPoor

Wind Gusts31 mph

Humidity93%

Indoor Humidity92% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

66°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

WindN 16 mph

Air QualityPoor

Wind Gusts31 mph

Humidity98%

Indoor Humidity90% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

11 PM

66°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 38%
Chevron down
Mostly cloudy

WindN 17 mph

Air QualityPoor

Wind Gusts32 mph

Humidity96%

Indoor Humidity88% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

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Weather Near Alton:

  • O'Fallon, MO
  • St. Charles, MO
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