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Alton, IL

65°F
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Today

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 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

4 AM

59°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

WindE 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity79%

Indoor Humidity57% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

58°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

WindE 5 mph

Air QualityPoor

Wind Gusts7 mph

Humidity85%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

58°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

WindE 5 mph

Air QualityPoor

Wind Gusts8 mph

Humidity92%

Indoor Humidity64% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

57°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™57°

WindE 5 mph

Air QualityUnhealthy

Max UV Index0.0 (Low)

Wind Gusts8 mph

Humidity93%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

63°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™63°

WindSE 5 mph

Air QualityUnhealthy

Max UV Index1.0 (Low)

Wind Gusts5 mph

Humidity78%

Indoor Humidity64% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

71°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™69°

WindSSE 5 mph

Air QualityUnhealthy

Max UV Index2.0 (Low)

Wind Gusts6 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

79°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™77°

WindSSE 5 mph

Air QualityPoor

Max UV Index3.0 (Moderate)

Wind Gusts6 mph

Humidity49%

Indoor Humidity49% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

84°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™81°

WindSSE 5 mph

Air QualityPoor

Max UV Index4.2 (Moderate)

Wind Gusts6 mph

Humidity41%

Indoor Humidity41% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

87°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™85°

WindSSE 6 mph

Air QualityPoor

Max UV Index5.0 (Moderate)

Wind Gusts6 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

90°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™87°

WindSSE 6 mph

Air QualityPoor

Max UV Index5.5 (High)

Wind Gusts7 mph

Humidity33%

Indoor Humidity33% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

91°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™89°

WindSE 6 mph

Air QualityPoor

Max UV Index5.0 (Moderate)

Wind Gusts7 mph

Humidity31%

Indoor Humidity31% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

93°
RealFeel® 96°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™91°

WindSE 6 mph

Air QualityPoor

Max UV Index4.2 (Moderate)

Wind Gusts7 mph

Humidity29%

Indoor Humidity29% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

92°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™89°

WindSE 5 mph

Air QualityPoor

Max UV Index3.0 (Moderate)

Wind Gusts6 mph

Humidity29%

Indoor Humidity29% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

91°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™88°

WindESE 6 mph

Air QualityPoor

Max UV Index2.0 (Low)

Wind Gusts7 mph

Humidity30%

Indoor Humidity30% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

88°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™85°

WindE 6 mph

Air QualityPoor

Max UV Index1.0 (Low)

Wind Gusts7 mph

Humidity34%

Indoor Humidity34% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover29%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

84°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny
alerts

Air Quality Alert

3:10 PM Friday - 8:00 PM Thursday

RealFeel Shade™82°

WindE 6 mph

Air QualityPoor

Max UV Index0.0 (Low)

Wind Gusts7 mph

Humidity42%

Indoor Humidity42% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover37%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

80°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Partly cloudy

WindE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity50%

Indoor Humidity50% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

77°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 19%
Chevron down
Partly cloudy

WindSE 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity56%

Indoor Humidity56% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover41%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

74°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 24%
Chevron down
Partly cloudy

WindS 5 mph

Air QualityPoor

Wind Gusts10 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 43%
Chevron down
Intermittent clouds

WindSSW 5 mph

Air QualityPoor

Wind Gusts9 mph

Humidity70%

Indoor Humidity70% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover55%

Visibility10 mi

Cloud Ceiling30000 ft

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