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Alton, IL

88°F
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Alton

Illinois

88°
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Alton, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Wed, Jul 8

Humid with sunshine interrupted by clouds at times; a thunderstorm in spots this afternoon Hi: 91°

Tonight: Clear to partly cloudy and humid Lo: 70°

Current Weather

1:51 PM

88°F
RealFeel® 104°
Partly sunny More Details
RealFeel Shade™ 92°
Heat Index 93°
Wind WNW 2 mph
Wind Gusts 3 mph
Air Quality Poor

Looking Ahead

Thunderstorms, some heavy, tomorrow afternoon through late Friday night

Alton Weather Radar

Alton Weather Radar
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Clouds
Temperature

Hourly Weather

2 PM 91°
rain drop 47%
3 PM 90°
rain drop 51%
4 PM 88°
rain drop 47%
5 PM 87°
rain drop 19%
6 PM 85°
rain drop 19%
7 PM 83°
rain drop 13%
8 PM 81°
rain drop 0%
9 PM 78°
rain drop 0%
10 PM 76°
rain drop 0%
11 PM 74°
rain drop 0%
12 AM 74°
rain drop 0%
1 AM 73°
rain drop 0%

10-Day Weather Forecast

Today

7/8

91° 70°

A t-storm around in the p.m.

Night: Mainly clear and humid
55%

Thu

7/9

88° 72°

A heavy t-storm in the p.m.

Showers and a heavier t-storm
80%

Fri

7/10

84° 71°

A shower and t-storm; humid

A shower and t-storm; humid
88%

Sat

7/11

84° 67°

Humid with a stray t-storm

Mainly clear and humid
55%

Sun

7/12

86° 66°

Mostly sunny and humid

A crystal-clear sky
9%

Mon

7/13

86° 70°

Nice with plenty of sunshine

Clear and humid
6%

Tue

7/14

90° 70°

Sunny and uncomfortably humid

A crystal-clear sky and humid
9%

Wed

7/15

93° 72°

Hot; a brief morning shower

Mainly clear and humid
49%

Thu

7/16

91° 71°

Partly sunny and humid

Mainly clear and humid
2%

Fri

7/17

90° 71°

Wall-to-wall sunshine

Clear and humid
1%

Sun & Moon

14 hrs 46 mins
Rise 5:43 AM
Set 8:29 PM
Waning Crescent
Rise 12:30 AM
Set 2:27 PM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

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